CHEMetrics K-9520B Sulfide HR CHEMets Test Kit (125-1250 ppm Methylene Blue Method)

HR CHEMets^® is the new way to test at high ranges and replaces the now discontinued VACUettes product line.

The K-9520B Sulfide HR CHEMets® Test Kit (125-1250 ppm) comes in a plastic case and contains everything needed to perform 30 tests (except distilled water): HR CHEMets® Refill, Flat Comparator, 25 mL sample cup, sample cup top, 200 uL fixed volume pipet, pipettor tips, sulfide activator solution, and instructions.

Applications and Industries

Groundwater, wastewater, industrial process waters.

References

APHA Standard Methods, 23rd ed., Method 4500-S2 - D - 2000 EPA Methods for Chemical Analysis of Water and Wastes, Method 376.2 (1983).

Chemistry

In an acidic solution, sulfide reacts with N,N-dimethyl-pphenylenediamine and ferric chloride to produce methylene blue. The resulting blue color is directly proportional to the sulfide concentration. Results are expressed in ppm (mg/L) sulfide as S.

Storage Requirements

Products should be stored in the dark and at room temperature.

Analyte-Specific Information

Sulfide is not stable in aqueous solutions, particularly at pHs below 7. Samples should be analyzed immediately after collection and agitation of the sample should be minimized.

Kit includes:

• HR CHEMets® Refill
• Flat Comparator
• 25 mL sample cup
• Sample cup top
• 200 uL fixed volume pipet
• Pipettor tips
• Sulfide activator solution
• Instructions