Analysis of pesticide gas cartridges

J Agric Food Chem. 2001 Aug;49(8):3753-6. doi: 10.1021/jf010413z.

Abstract

Charcoal and sodium nitrate, the active ingredients in pesticide gas cartridges, are quantified via carbon analysis and ion chromatography, respectively. Linearity was excellent (R(2) > 0.995) over a range consisting of 50-150% of the target concentration for both ingredients. The coefficient of variation for the replicate analyses of gas cartridges over multiple days was <4% for both analytes. Using the results from the analysis of two batches of gas cartridges, theoretical populations were modeled and used to determine practical sampling strategies to support a quality control program for a gas cartridge manufacturing operation. This modeling indicates that the analysis of three cartridges from each of five different lots would produce mean values for both active ingredients that are within 5% of the true mean >99% of the time.

MeSH terms

  • Carcinogens / analysis
  • Charcoal / analysis*
  • Chromatography, Gas / methods
  • Nitrates / analysis*
  • Quality Control
  • Reproducibility of Results

Substances

  • Carcinogens
  • Nitrates
  • Charcoal
  • sodium nitrate