Issue: 18 Issue date: September 2016
QFCS Quality in Food Chemistry Scheme
Scheme Description
LGC Standards Proficiency Testing 1 Chamberhall Business Park Chamberhall Green Bury Lancashire BL9 0AP United Kingdom Telephone: +44 (0) 161 762 2500 Fax: +44 (0) 161 762 2501 Email: [email protected] Website: www.lgcstandards.com
mailto:[email protected]://www.lgcstandards.com/
Issue: 18 Page 2 of 20 Issue date: September 2016
Record of issue status and modifications
ISSUE ISSUE DATE
DETAILS AUTHORISED
BY
2 Sep 2008 Updated with UKAS logo for single scope (0001) and removed reference to scheme year.
T.Noblett
3
Aug 2009 Operational issues common to all schemes moved into General Protocol. List of abbreviations added. New PORTAL system added
M.Whetton
4 Sep 2010 New parameter details added to 770 & 772 M.Whetton
5 Nov 2010 Parameter details & appendix B added for sample 773 M.Whetton
6 23/03/11 Change of Address on Page 1 N.Stephenson
7 26/05/11 Sample details updated for sample 774 M.Whetton
8 27/07/11 Sample details updated for 2012 M.Whetton
9 July 2012 Pesticide details updated. New samples 777 and 778 added for 2012.
M.Whetton
10 Sept 2012 Sample details updated for 2013 including the addition of vitamins & minerals in 770 and the trial materials 779 & 780.
M.Whetton
11 Sept 2013 Sample details updated for 2014 including the addition of allergen testing (gluten) in flour.
W.Gaunt
12 Oct 2013 Information (matrix details) updated for sample 774. W.Gaunt
13 Sept 2014
Sample details updated for 2015. Including the addition of trial materials. Inclusion of traceability information in Appendix A. Inclusion of subcontracting information in ‘Test Materials’ section.
W.Gaunt
14 Sept 2015
Addition of samples 771 (Vitamins & minerals in cereal based food matrix) and 787 (Nitrate analysis of green leaf products) and general update of sample descriptions Removed Hard copy Report information.
W.Gaunt
A.McCarthy
15 Oct 2015 Addition of 788 (acrylamide in snacks) and 789 (metals in brown rice)
W.Gaunt S Xystouris
16 Jan 2016 Additional details for 779, addition of cholesterol to 772 W.Gaunt
17 Mar 2016 Addition of analyte (Arsenic - Inorganic) in Sample 789, and addition of Samples 790 (Extra Virgin Olive Oil), 791 (Olive Oil) and 792 (Perchlorates)
S. Xystouris
18 Sept 2016
Revision of pesticide list. Bread and cake samples separated (samples 776 and 793). Addition of new samples: 794 (spices), 795 (mushrooms) & 796 (frying oil). New analytes in samples 761, 762 and 763. General update of appendices.
W.Gaunt/ S.Xystouris
Notes: Where this document has been translated, the English version shall remain the definitive version
Issue: 18 Page 3 of 20 Issue date: September 2016
Scheme Aims and Organisation The primary aim of the Quality in Food Chemistry Scheme (QFCS) is to enable laboratories performing the analysis of food products to monitor their performance and compare it with that of their peers. QFCS also aims to provide information to participants on technical issues and methodologies relating to the chemical examination of foods.
The QFCS scheme year operates from January to December. Further information about QFCS, including test material availability, round despatch dates and reporting deadlines, are available on the current QFCS application form. Test Materials Details of test materials available in QFCS are given in Appendix A. The test parameters are continually reviewed to ensure they meet the needs of current laboratory testing and regulatory requirements.
Sample 773 will be provided as a fruit or vegetable matrix which will contain detectable levels of up to 10 pesticides selected from the list given in Appendix B. Sample 777 will be provided as a dried tea matrix which will contain detectable levels of up to 10 pesticides selected from the list given in Appendix C. Participants will be required to screen the sample provided and report the presence of any pesticides found above their routine reporting limits. Each pesticide detected in the sample should also be quantified.
Test material batches are tested for homogeneity for at least one test parameter where deemed appropriate. Details of homogeneity tests performed and results are given in the QFCS Scheme Reports.
Some aspects of the scheme, such as test material production, homogeneity testing and stability assessment, can from time to time be subcontracted. When subcontracting occurs, it is placed with a competent subcontractor and LGC is responsible for this work. The planning of the scheme, the evaluation of performance and the authorisation of the final report will never be subcontracted.
Statistical Analysis Information on the statistics used in QFCS can be found in the General Protocol and in the Scheme Report. Methods for determining assigned values and the values for SDPA used for individual samples are given in Appendix A. Methods Methods are listed in PORTAL. Please select the most appropriate method from the list. If none of the methods are appropriate, then please report your method as ‘Other’ and record a brief description in the Comments Section in PORTAL. Results and Reports QFCS results are returned through our electronic reporting software, PORTAL, full instructions for which are provided by email. However, participants may request result submission forms on which to report and return results if they are unable to report through electronic means. This will incur an additional charge.
QFCS reports will be available on the website within 10 working days of round closure. Participants will be emailed a link to the report when it is available.
Issue: 18 Page 4 of 20 Issue date: September 2016
APPENDIX A - Description of abbreviations used Assigned Value (AV) The assigned value may be derived in the following ways: From the robust mean (median) of participant results (RMean). This is the median of participant
results after the removal of test results that are inappropriate for statistical evaluation, e.g. miscalculations, transpositions and other gross errors. Generally, the assigned value will be set using results from all methods, unless the measurement is considered method-dependant, in which case the assigned value will be set by method as illustrated in the report tables. For some analytes, where there is a recognised reference method for that type of measurement, this may be used as the assigned value for a particular analyte i.e. it would be applied to results obtained by any method. Traceability: Assigned values which are derived from the participant results, or a sub-set of the results are not traceable to an international measurement standard. The uncertainty of assigned values derived in this way is estimated from the participant results, according to ISO 13528.
From a formulation value (Formulation). This denotes the use of an assigned value derived from sample preparation details, where known and exact quantities of analyte have been used to prepare the sample.
Traceability: Assigned values calculated from the formulation of the test sample are traceable, via an unbroken metrological traceability chain, to an international measurement standard. The measurement uncertainty of the assigned value is calculated using the contributions from each calibration in the traceability chain.
From a qualitative formulation (Qual Form). This applies to qualitative tests where the assigned
value is simply based on the presence/absence of the analyte in the test material.
Traceability: Assigned values calculated from the qualitative formulation of the test sample are traceable to a certified reference standard or a microbiological reference strain.
From expert labs (Expert). The assigned value for the analyte is provided by an ‘expert’ laboratory.
Traceability: Assigned values provided by an ‘expert’ laboratory may be traceable to an international measurement standard, according to the laboratory and the method used. The uncertainty of measurement for an assigned value produced in this way will be provided by the laboratory undertaking the analysis. Details of traceability and the associated uncertainty will be provided in the report for the scheme/round.
Range This indicates the concentration range at which the analyte may be present in the test material. SDPA SDPA represents the ‘standard deviation for proficiency assessment’ which is used to assess participant performance for the measurement of each analyte. This may be a fixed value (as stated), a percentage (%) of the assigned value or based on the robust standard deviation of the participant measurement results, either across all methods or by method depending on whether the measurement made is method dependent (see assigned value).
Issue: 18 Page 5 of 20 Issue date: September 2016
Units This indicates the units used for the assessment of data. These are the units in which participants should report their results. For some analytes in some schemes participants may have a choice of which units to report their results, however, the units stipulated in this scheme description are the default units to which any results reported using allowable alternative results will be converted to. DP This indicates the number of decimal places to which participants should report their measurement results.
Issue: 18 Page 6 of 20 Issue date: September 2016
Sample 760 Analysis of preservatives Supplied as 100ml liquid test material
Analyte Method Range AV SDPA Units DP Sorbic acid All All Formulation 5% of AV (min 5ppm) mg/L 1
Benzoic acid All All Formulation 5% of AV (min 5ppm) mg/L 1 Sulfur dioxide All All Formulation Robust SD mg/L 1
Sample 761 Analysis of sweeteners Supplied as 100ml liquid test material
Analyte Method Range AV SDPA Units DP Acesulfame K All All Formulation 5% of AV (min 5ppm) mg/L 1
Aspartame All All Formulation 10% of AV (min 5ppm) mg/L 1
Saccharin All All Formulation 5% of AV (min 5ppm) mg/L 1 Sucralose All All Formulation Robust SD mg/L 1
Sample 762 Analysis of food colours Supplied as 100ml liquid test material
Analyte Method Range AV SDPA Units DP Ponceau 4R All All Formulation 5% of AV (min 5ppm) mg/L 1
Carmoisine All All Formulation 5% of AV (min 5ppm) mg/L 1 Sunset yellow All All Formulation 5% of AV (min 5ppm) mg/L 1
Indigo carmine All All Formulation 5% of AV (min 5ppm) mg/L 1
Sample 763 Analysis of food colours Supplied as 100ml liquid test material
Analyte Method Range AV SDPA Units DP Allura red All All Formulation 5% of AV (min 5ppm) mg/L 1
Tartrazine All All Formulation 5% of AV (min 5ppm) mg/L 1 Quinoline yellow All All Formulation 5% of AV (min 5ppm) mg/L 1
Brilliant blue All All Formulation 5% of AV (min 5ppm) mg/L 1
Issue: 18 Page 7 of 20 Issue date: September 2016
Sample 770 Nutritional analysis of cereal based food Supplied as 100g cereal based food material
Analyte Method Range AV SDPA Units DP
Energy All All Median 5% of AV Kcal or kJ/100g
0
Fat All All Median Robust SD % 2 Carbohydrate (total & available) All All Median Robust SD % 2
Total sugars All All Median 2.00 % 2 Total dietary fibre All All Median 0.50 % 2
Protein All All Median 0.30 % 2 Salt All All Median Robust SD % 2
Sodium All All Median 0.05 % 2 Ash All All Median 0.10 % 2
Moisture All All Median 0.50 % 2 Phosphate All All Median 0.05 %PO4 2
Sample 771 Vitamins & minerals in cereal based food Supplied as 100g cereal based food material
Analyte Method Range AV SDPA Units DP
Vitamin A All 1-400 Median Robust SD µg/100g retinol
1
Vitamin B1 (Thiamine) All 1-10 Median Robust SD mg/100g 2
Vitamin B2 (Riboflavin) All 1-10 Median Robust SD mg/100g 2 Vitamin B3 (Niacin) All 1-100 Median Robust SD mg/100g 2
Vitamin B5 (Pantothenic Acid) All 1-50 Median Robust SD mg/100g 2 Vitamin B6 All 1-20 Median Robust SD mg/100g 2
Vitamin B9 (Folic Acid) All 1-400 Median Robust SD µg/100g 1 Vitamin B12 All 1-25 Median Robust SD µg/100g 2
Vitamin C All 1-300 Median Robust SD mg/100g ascorbic acid
2
Vitamin D All 1-10 Median Robust SD µg/100g 1 Iron All 1-100 Median Robust SD mg/100g 2
Issue: 18 Page 8 of 20 Issue date: September 2016
Sample 772 Nutritional analysis of a ‘pre-prepared’ food product Supplied as 150g ‘pre-prepared’ food product (for example: potato, rice or pasta based meal) Analyte Method Range AV SDPA Units DP
Energy All All Median 5% of AV kcal or kJ/100g
0
Fat All All Median Robust SD % (g/100g) 2
Saturates All All Median 20% of AV % (g/100g)* 2
Mono-unsaturates All All Median 20% of AV % (g/100g)* 2 Poly-unsaturates All All Median 20% of AV % (g/100g)* 2
Total trans fatty acids All All Median Robust SD % (g/100g)* 2 Carbohydrate (total & available)
All All Median 1.00 % 2
Total sugars All All Median 2.00 % 2 Total dietary fibre All All Median 0.50 % 2
Protein All All Median 0.30 % 2 Salt All All Median Robust SD % 2
Sodium All All Median 0.05 % 2 Ash All All Median 0.10 % 2
Moisture All All Median 0.50 % 2 Phosphate All All Median 0.05 %PO4 2
Cholesterol All All Median Robust SD mg/100g 2 * All results must to be reported as the concentration determined in test material provided. Sample 773 Pesticides analysis of fruit/vegetable Supplied as 100g fruit/vegetable material containing a variety of quantifiable pesticides (from Appendix B) 100g blank fruit/vegetable matrix**
Analyte Method Range AV SDPA Units DP
Pesticides All All Median Robust SD µg/kg 1
**A blank matrix is provided for laboratories that require a spiked quality control material to be run alongside samples being assessed. Results are not required to be returned for the blank matrix provided.
Issue: 18 Page 9 of 20 Issue date: September 2016
Sample 774 Water activity analysis of food matrix Supplied as 50g cured meat product, hard cheese or cereal – see current QFCS Application form for full
details.
Analyte Method Range AV SDPA Units DP
Water activity All All Median 0.010 Aw 3
Sample 775 Nutritional analysis of flour Supplied as 100g flour material
Analyte Method Range AV SDPA Units DP Fat All All Median Robust SD % 2
Protein All All Median 0.30 % 2 Ash All All Median 0.20 % 2
Moisture All All Median Robust SD % 2 Calcium All All Median Robust SD mg/100g 2
Iron All All Median Robust SD mg/100g 2 Sample 776 Nutritional analysis of bread Supplied as 100g bread Analyte Method Range AV SDPA Units DP Fat All All Median Robust SD % 2
Total dietary fibre All All Median 0.50 % 2 Protein All All Median 0.30 % 2
Acidity All All Median Robust SD % 2 Ash All All Median 0.20 % 2
Moisture All All Median Robust SD % 2 Sodium All All Median Robust SD % 2
Chloride All All Median Robust SD % 2 Calcium All All Median Robust SD mg/100g 2
Iron All All Median Robust SD mg/100g 2 Vitamin B1 All All Median Robust SD mg/100g 2
Vitamin B2 All All Median Robust SD mg/100g 2 Vitamin B3 All All Median Robust SD mg/100g 2
Issue: 18 Page 10 of 20 Issue date: September 2016
Sample 777*** Pesticides analysis of dried tea Supplied as 50g dried tea material containing a variety of quantifiable pesticides (from Appendix C) 50g blank dried tea matrix** Analyte Method Range AV SDPA Units DP Pesticides All All Median Robust SD µg/kg 1
**A blank matrix is provided for laboratories that require a spiked quality control material to be run alongside samples being assessed. Results are not required to be returned for the blank matrix provided. Sample 778*** Edible Oil & Fat analysis Supplied as: 1 x 150g sample of edible oil or fat
Analyte Method Range AV SDPA Units DP
Water Karl Fisher - Median Robust SD g/kg 2
Free fatty acids (acidity) All - Median Robust SD % Oleic acid 2
Saponification value (acid number)
All - Median Robust SD KOH mg/g 1
Unsaponifiable matter All - Median Robust SD g/kg 2
Anisidine value All - Median Robust SD AV 2
Colour Spectrophotometry - Median Robust SD Hazen mg pt/L 1
Colour Lovibond - Median Robust SD Lovibond 1
Iodine value All - Median Robust SD % Iodine absorbed
1
Peroxide value All - Median Robust SD mEq O2/kg sample
2
Fatty acid composition
12:0 Lauric acid GC 0-100 Median Robust SD g/kg 2
14:0 Myristic acid GC 0-200 Median Robust SD g/kg 2
14:1 n-5 Myristoleic acid GC 20-100 Median Robust SD g/kg 2
15:0 Pentadecanoic acid GC 0-50 Median Robust SD g/kg 2
16:0 Palmitic acid GC 50-200 Median Robust SD g/kg 2
16:1 Palmitoleic acid GC 0-25 Median Robust SD g/kg 2
17:0 Heptadecanoic acid GC 200-400 Median Robust SD g/kg 2
18:0 Stearic acid GC 10-60 Median Robust SD g/kg 2
18:1 Oleic acid (cis) GC 500-900 Median Robust SD g/kg 2
18:2 Linoleic acid (n-6) GC 35-210 Median Robust SD g/kg 2
Issue: 18 Page 11 of 20 Issue date: September 2016
Analyte Method Range AV SDPA Units DP
18:3 Linolenic acid (n-3) GC 0-50 Median Robust SD g/kg 2
20:0 Eicosanoic acid GC 0-40 Median Robust SD g/kg 2
22:0 Behemic acid GC 0-50 Median Robust SD g/kg 2
22:1 Methyl erucate GC 0-50 Median Robust SD g/kg 2
FAMES requested will be selected depending upon the material that is chosen in each round. Sample 779*** Aflatoxin analysis of nuts Supplied as 50g nut material & 50g blank nut matrix
Analyte Method Range AV SDPA Units DP Aflatoxins B1, B2, G1, G2 All All Median Robust SD µg/kg 1
Total aflatoxins All All Median Robust SD µg/kg 1
A blank matrix is provided for laboratories that require a spiked quality control material to be run alongside samples being analysed; however only results for the spiked sample are to be reported. Results are not required to be returned for the blank matrix provided and any blank values must not to be taken into account when reporting the spiked sample values. Sample 780*** Elements analysis in dried tea Supplied as 50g dried green tea matrix
Analyte Method Range AV SDPA Units DP
Total arsenic All All Median Robust SD mg/kg 2 Cadmium All All Median Robust SD mg/kg 2
Mercury All All Median Robust SD mg/kg 2 Lead All All Median Robust SD mg/kg 2
Selenium All All Median Robust SD mg/kg 2
Sample 781*** Gluten in flour Supplied as 100g flour material
Analyte Method Range AV SDPA Units DP
Gluten All All Median Robust SD mg/kg 1
Issue: 18 Page 12 of 20 Issue date: September 2016
Sample 782 Nutritional analysis of mixed fat spread Supplied as 100g mixed fat spread
Analyte Method Range AV SDPA Units DP Saturates All All Median 20% of AV g/100g* 2
Mono-unsaturates All All Median 20% of AV g/100g* 2 Poly-unsaturates All All Median 20% of AV g/100g* 2
Total trans fatty acids All All Median Robust SD g/100g* 2 Omega 3 Various - Median Robust SD g/100g* 2
Omega 6 Various - Median Robust SD g/100g* 2 Salt Various All Median 0.05 % 2
Water Various All Median 0.20 % 2 pH Various All Median 0.10 - 2
Vitamin A Various - Median Robust SD µg/100g 1 Vitamin D Various - Median Robust SD µg/100g 1
*All results must to be reported as the concentration determined in test material provided.
Sample 783*** Nutritional analysis of tomato paste/puree Supplied as 100g tomato paste/puree
Analyte Method Range AV SDPA Units DP pH All All Median Robust SD - 2
Brix All All Median Robust SD % 2 Total solids All All Median Robust SD % 2
Ash All All Median Robust SD % 2 Salt All All Median Robust SD % (as NaCl) 2
Sample 784*** Elements analysis in cereal grain Supplied as 50g cereal grain product.
Analyte Method Range AV SDPA Units DP
Total arsenic All All Median Robust SD mg/kg 2 Cadmium All All Median Robust SD mg/kg 2
Lead All All Median Robust SD mg/kg 2 Mercury All All Median Robust SD mg/kg 2
Issue: 18 Page 13 of 20 Issue date: September 2016
Sample 785*** Elements analysis in oil Supplied as 50g edible oil
Analyte Method Range AV SDPA Units DP Total arsenic All All Median Robust SD mg/kg 2
Cadmium All All Median Robust SD mg/kg 2 Lead All All Median Robust SD mg/kg 2
Mercury All All Median Robust SD mg/kg 2
Sample 786*** Elements analysis in dried fruit Supplied as 50g dried fruit product.
Analyte Method Range AV SDPA Units DP Total arsenic All All Median Robust SD mg/kg 2
Cadmium All All Median Robust SD mg/kg 2 Lead All All Median Robust SD mg/kg 2
Mercury All All Median Robust SD mg/kg 2
Sample 787*** Nitrate analysis in vegetables Supplied as 50g of vegetable material
Analyte Method Range AV SDPA Units DP
Nitrate All 500 to 3000 Median Robust SD mg/kg 0 Sample 788*** Acrylamide analysis in snacks Supplied as 50g snack product
Analyte Method Range AV SDPA Units DP Acrylamide All All Median Robust SD µg/kg 0
Sample 789*** Elements analysis in rice Supplied as 10g brown rice product
Analyte Method Range AV SDPA Units DP
Total arsenic All All Median Robust SD mg/kg 2 Inorganic arsenic1 All All Median Robust SD mg/kg 2
Cadmium All All Median Robust SD mg/kg 2
Lead All All Median Robust SD mg/kg 2
1Sum of As (III) and As (V).
Issue: 18 Page 14 of 20 Issue date: September 2016
Sample 790*** Extra virgin olive oil analysis Supplied as: 2 x 200ml sample of extra virgin olive oil
Analyte Method Range AV SDPA Units DP
Peroxide value All - Median Robust SD mEq O2/kg 2
Free fatty acids (acidity) All - Median Robust SD % Oleic acid 2
K232 Spectrophotometry - Median Robust SD - 2
K270 Spectrophotometry - Median Robust SD - 2
Wax content All - Median Robust SD mg/kg 0
3,5 stigmastadienes All - Median Robust SD mg/kg 2
Ethyl esters All - Median Robust SD mg/kg 0
Total sterols All - Median Robust SD mg/kg 0
Δ7-stigmastenol All - Median Robust SD % total sterols
2
Insoluble impurities All - Median Robust SD % w/w 2
Moisture and volatile matter at 103°C
All - Median Robust SD % w/w 2
Total polyphenols Spectrophotometry (Folin Ciocalteau)
- Median Robust SD mg of caffeic acid /kg of oil
1
Fatty acid composition
16:0 Palmitic acid GC - Median Robust SD % total fatty acids
2
18:0 Stearic acid GC - Median Robust SD % total fatty acids
2
18:2 Linoleic acid (cis & trans)
GC - Median Robust SD % total fatty acids
2
18:3 Linolenic acid (cis & trans)
GC - Median Robust SD % total fatty acids
2
`
Issue: 18 Page 15 of 20 Issue date: September 2016
Sample 791*** Olive oil analysis Supplied as: 2 x 200ml samples of olive oil
Analyte Method Range AV SDPA Units DP
Free fatty acids (acidity) All - Median Robust SD % Oleic acid 2
K270 Spectrophotometry - Median Robust SD - 2
ΔK Spectrophotometry - Median Robust SD - 2 Wax content All - Median Robust SD mg/kg 0
3,5 stigmastadienes All - Median Robust SD mg/kg 2
β-sitosterol (apparent) All - Median Robust SD % total sterols 2
Campesterol All - Median Robust SD % total sterols 2
Erythrodiol & Uvaol All - Median Robust SD % total sterols 2
ΔECN 42 HPLC - Median Robust SD - 2
Accelerated oxidation test
(Rancimat) at 120°C Rancimat - Median Robust SD
Induction time (hours)
2
Fatty acid composition
16:1 Palmitoleic acid (cis & trans)
GC - Median Robust SD % total fatty acids 2
18:1 Oleic acid (cis & trans)
GC - Median Robust SD % total fatty acids 2
18:1 Oleic acid (trans) GC - Median Robust SD % total fatty acids 2
18:2 Linoleic acid (trans) GC - Median Robust SD % total fatty acids 2
18:3 Linolenic acid (trans) GC - Median Robust SD % total fatty acids 2
20:0 Arachidic acid GC - Median Robust SD % total fatty acids 2
Issue: 18 Page 16 of 20 Issue date: September 2016
Sample 792*** Perchlorates in vegetables Supplied as 50g of vegetable material
Analyte Method Range AV SDPA Units DP Perchlorate All All Median Robust SD mg/kg 2
Sample 793 Nutritional analysis of cake Supplied as 100g cake
Analyte Method Range AV SDPA Units DP
Fat All All Median Robust SD % 2 Total sugars All All Median Robust SD % 2
Total dietary fibre All All Median 0.50 % 2 Protein All All Median 0.30 % 2
Acidity All All Median Robust SD % 2 Ash All All Median 0.20 % 2
Moisture All All Median Robust SD % 2 Sodium All All Median Robust SD % 2
Chloride All All Median Robust SD % 2 Calcium All All Median Robust SD mg/100g 2
Iron All All Median Robust SD mg/100g 2
Sample 794*** Aflatoxin analysis of spices Supplied as 100g chilli powder
Analyte Method Range AV SDPA Units DP Aflatoxins B1, B2, G1, G2 All All Median Robust SD µg/kg 1
Total aflatoxins All All Median Robust SD µg/kg 1
Sample 795*** Elements in mushrooms Supplied as 5g of lyophilised mushrooms
Analyte Method Range AV SDPA Units DP Total arsenic All All Median Robust SD mg/kg 2
Cadmium All All Median Robust SD mg/kg 2 Lead All All Median Robust SD mg/kg 2
Issue: 18 Page 17 of 20 Issue date: September 2016
Sample 796*** Total Polar compounds in frying oil Supplied as 100g of frying oil (e.g. palm oil)
Analyte Method Range AV SDPA Units DP Total polar compounds All All Median Robust SD % 1
***Test materials currently not included in LGC’s UKAS Scope of Accreditation
Issue: 18 Page 18 of 20 Issue date: September 2016
2,4-D
2-phenylphenol
Abamectin
Acephate
Acetamiprid
Acetochlor
Acrinathrin
Alachlor
Aldicarb 1
Aldrin
Aminocarb
Amitraz
Asulam
Atrazine
Azinphos-ethyl
Azinphos-methyl
Azoxystrobin
Benalaxyl
Benfuracarb
Benthiavalicarb
Benthiavalicarb-isopropyl
Bifenthrin
Biphenyl
Bitertanol
Boscalid
Bromophos-ethyl
Bromophos-methyl
Bromopropylate
Bromoxynil
Bromuconazole
Bupirimate
Buprofezin
Cadusafos
Captan
Carbaryl
Carbendazim
Carbofuran
Carbophenothion
Chlordane (cis)
Chlordane (trans)
Chlorfenapyr
Chlorfenvinphos
Chloridazon
Chlorobenzilate
Chlorothalonil
Chlorotoluron
Chlorpropham
Chlorpyrifos
Chlorpyrifos-methyl
Chlorthal-dimethyl
Chlorthiophos
Chlortoluron
Clofentezine
Clomazone
Clothianidin
Cyanazine
Cyanophenphos
Cycloxydim
Cyfluthrin
Cymoxanil
Cypermethrin
Cyproconazole
Cyprodinil
Cyromazine
DDT 4
Deltamethrin
Diazinon
Dichlobenil
Dichlobutrazole
Dichlofenthion
Dichlofluanid
Dichlorvos
Dicloran
Dicofol
Dieldrin
Difenoconazole
Diflubenzuron
Diflufenican
Dimethoate
Dimethomorph
Dimoxystrobin
Dinotefuran
Diphenylamine
Diuron
Endosulfan 3
Epoxiconazole
Ethiofencarb 1
Ethion
Ethofumesate
Ethoprophos
Etrimfos
Fenamidone
Fenamiphos
Fenarimol
Fenazaquin
Fenbuconazole
Fenhexamid
Fenitrothion
Fenoxycarb
Fenpropathrin
Fenpropimorph
Fenpyroximate
Fenthion 1
Fenvalerate
Fipronil 2
Fluazinam
Flubendiamide
Flucythrinate
Fludioxonil
Flufenoxuron
Fluopicolide
Fluoxastrobin
Flurochloridone
Fluroxypyr
Flusilazole
Flutriafol
Fluvalinate-tau
Folpet
Fonofos
Fosthiazate
Furalaxyl
Furathiocarb
HCH-alpha
HCH-beta
HCH-delta
Heptachlor
Heptenophos
Hexachlorobenzene
Hexaconazole
Hexazinone
Hexythiazox
Imazalil
Imidacloprid
Indoxacarb
Ioxynil
Iprodione
Iprovalicarb
Isocarbofos
Isodrin
Isofenphos
Isofenphos-methyl
Isoproturon
Isoxaben
Kresoxim-methyl
Lambda-cyhalothrin
Lenacil
Lindane
Linuron
Malathion
Mecarbam
Mepanipyrim
Metaconazole
Metalaxyl
Metamitron
Metazachlor
Methabenzthiazuron
Methacrifos
Methamidophos
Methidathion
Methiocarb 1
Methomyl
Methoxyfenozide
Metolachlor
Metolcarb
APPENDIX B - Potential pesticides residues (parent compounds only unless stated) Sample 773 - Fruit/vegetable matrix
Issue: 18 Page 19 of 20 Issue date: September 2016
Metoxuron
Metribuzin
Mevinphos
Monocrotophos
Monolinuron
Monuron
Myclobutanil
Nitenpyram
Nitrofen
Nuarimol
Omethoate
Oxadixyl
Oxamyl
Oxychlordane
Oxydemeton-methyl
Oxyfluorfen
Paclobutrazol
Parathion
Parathion-methyl
Penconazole
Pendimethalin
Permethrin
Phenothrin
Phenthoate
Phosalone
Phosmet
Phosphamidon
Picoxystrobin
Pirimicarb
Pirimiphos-ethyl
Pirimiphos-methyl
Prochloraz
Procymidone
Profenofos
Promecarb
Prometrym
Propamocarb
Propaquizafop
Propargite
Propazine
Propetamphos
Propiconazole
Propoxur
Propyzamide
Proquinazid
Pymetrozine
Pyraclostrobin
Pyrazophos
Pyrethrins
Pyridaben
Pyridaphenthion
Pyrifenox
Pyrimethanil
Pyriproxifen
Quinalphos
Quinoxyfen
Quintozene
Simazine
Spirodiclofen
Spiromesifen
Tebuconazole
Tebufenozide
Tebufenpyrad
Tebuthiuron
Tecnazene
Teflubenzuron
Tefluthrin
Terbacil
Terbuthylazine
Terbutryn
Tetrachlorvinphos
Tetraconazole
Tetradifon
Tetramethrin
Thiabendazole
Thiacloprid
Thiamethoxam
Thiodicarb
Tolclofos-methyl
Tolfenpyrad
Tolylfluanid
Triadimefon
Triazophos
Triclopyr
Trietazine
Trifloxystrobin
Triflumizole
Trifluralin
Triticonazole
Vinclozolin
Zoxamide
Note: Metabolites of the substances listed may also be included 1 Sum of parent plus sulfoxide and sulfone 2 Parent plus sum of sulfone 3 Sum of alpha, beta and sulfate 4 Sum of pp'-DDT, op'-DDT, pp'-DDE and pp'-TDE
Issue: 18 Page 20 of 20 Issue date: September 2016
Acetamiprid Cypermethrin Flusilazole Phosmet
Azinphos-methyl DDT HCH-gamma Phoxim
Bifenthrin Deltamethrin Imidacloprid Profenophos
Buprofezin Dicofol Indoxacarb Prothiophos
Cadusafos Dieldrin Isoprocarb Propyzamide
Carbaryl Difenoconazole Isoxathion Pyridaben
Carbendazim Dimethoate Malathion Quinalphos
Chlorfenapyr Endosulfan Methomyl Tebufenpyrad
Chlorfenvinphos Endrin Myclobutanil Tefluthrin
Chlorobenzuron Ethion Omethoate Terbufos
Chlorpyrifos Etrimfos Oxamyl Triadimefon
Chlorpyrifos methyl Fenitrothion Pentachlorophenol Triadimenol
Clofentazine Fenobucarb Permethrin Triazophos
Cyhalothrin-lambda Fenvalerate Phosalone Trichlorfon Note: Metabolites of the substances listed may also be included.
APPENDIX C - Potential pesticides residues (parent compounds only unless stated) Sample 777 - Tea matrix
