Second Edition

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Analytical Chemistry

for Technicians

John Kenkel

m LEWIS PUBLISHERS Boca Raton Ann Arbor London Tokyo

List of Experiments

1. The Percent of Water in Hydrated Barium Chloride 15 2. The Gravimetrie Determination of Sulfate in a Commercial

Unknown 18 3. The Gravimetrie Determination of Iron in a Commercial

Unknown 25 4. A Study of the Dissolving Properties of Water, Some Common

Organic Liquids and Laboratory Acids 41

5. Statistical Analysis of Weighing 58

6. Perfecting the Art of Pipetting 99

7. Preparation and Standardization of HCl and NaOH Solutions . . .128

8. Titrimetric Analysis of a Commercial Soda Ash Unknown for Sodium Carbonate 130

9. Titrimetric Analysis of a Commercial KHP Unknown for KHP 130

10. Analysis of a Grain Sample for Protein Content by the Kjeldahl Method 131

11. Preparation and Standardization of an EDTA Solution 150

12. Titrimetric Determination of Total Hardness in a Synthetic or "Real" Water Sample 151

13. Titrimetric Determination of Temporary and Permanent Hardness in a Water Sample 152

14. Preparation and Standardization of a KMn04 Solution 167 15. Titrimetric Determination of Sodium Oxalate in a Commercial

Unknown 168 16. The Preparation and Standardization of a Sodium Thiosulfate

Solution 168 17. The Determination of Residual Chlorine in Wastewater Plant

Effluent by Iodometry 169 18. Titrimetric Determination of Calcium in a Commercial Limestone

Unknown 170 19. The Determination of Chloride in a Commercial Unknown by the

Mohr Method 170 20. Electrical Connections Between Instruments, Recorders, and

Computers 193 21. The Measurement of a Strong Acid-Strong Base Titration

Curve by Data Acquisition with a Microcomputer 195 22. Colorimetric Analysis of Prepared or Real Water Samples for

Iron 235 23. Spectrophotometric Analysis of a Prepared Sample for

Toluene 236 24. Determination of Nitrate in Water by UV Spectrophotometry . . .236 25. The Colorimetric Determination of Ozone in Air 237 26. The Colorimetric Determination of Manganese in Steel 238 27. The Determination of Phosphorus in Water and Soil 239 28. Fluorometric Analysis of a Prepared Sample for Riboflavin 241 29. Fluorometric Analysis of Vitamin Tablets for Riboflavin 241 30. Qualitative Analysis by Infrared Spectrometry -

Liquid Sampling 265 31. Qualitative Analysis by Infrared Spectrometry -

Solid Sampling 266 32. Quantitative Infrared Analysis of Isopropyl Alcohol in

Toluene 267 33. Verifying Optimum Instrument Parameters for Flame AA 309 34. Quantitative Atomic Absorption Analysis of a Prepared

Sample 312 35. The Analysis of Soil Samples for Potassium by Atomic

Absorption 313 36. The Analysis of Soil Samples for Iron Using Atomic

Absorption 313 37. The Analysis of Snack Chips for Sodium by Atomic

Absorption or Flame Photometry 314 38. The Atomic Absorption Analysis of Water Samples for Iron

Using the Standard Additions Method 315

39. The Atomic Absorption or Flame Photometrie Determination of

Sodium in Soda Pop 315

40. Titrimetric Determination of the Effectiveness of an Extraction .345

41. The Thin-Layer Chromatography Analysis of Cough Syrups for Dyes 346

42. The Extraction and Analysis of a Pain Relief Tablet for

Caffeine 347

43. The Extraction of Capsaicin from Chile Peppers 348

44. A Qualitative Gas Chromatography Analysis of a Prepared Sample 383

45. A Study of the Effect of the Changing of GC Instrument Parameters on Resolution 383

46. The Quantitative Gas Chromatography Analysis of a Prepared Sample for Benzene by the Internal Standard Method 384

47. The Gas Chromatography Determination of a Gasoline Component by the Method of Standard Additions and the Internal Standard Method 385

48. The Determination of Dichloromethane in Commercial Paint Strippers by Gas Chromatography and the Internal Standard Method 385

49. The Determination of Ethanol in Wine by Gas Chromatography and the Internal Standard Method 386

50. A Study of the Effects of Mobile-Phase Composition on Resolution in Reverse-Phase HPLC 412

51. The Quantitative Determination of Methyl Paraben in a Prepared Sample by HPLC 413

52. HPLC Determination of Caffeine and Sodium Benzoate in Soda Pop 414

53. The Quantitative Analysis of Chile Pepper Extract for Capsaicin 415

54. The Analysis of Mouthwash by HPLC-A Research

Experiment 415

55. Determination of the pH of Soil Samples 451

56. Determination of Fluoride in Municipal Water (or Other Sample)

with the Use of an Ion-Selective Electrode 451

57. Familiarization with Polarographic Techniques 452

58. Polarographic Analysis of a Prepared Sample for Cadmium 452