, Volume 83, Issue 5, pp 626-629
Date: 10 Jul 2009

Diazinon Determination Using High Performance Liquid Chromatography: A Comparison of the ENVI-Carb Column with the Immunoaffinity Column for the Pretreatment of Water and Soil Samples

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An immunoaffinity chromatography column was developed to remove diazinon from water and soil samples. In this paper, two types of absorbent columns, the immunoaffinity chromatography column and the ENVI-Carb column, were compared. To accomplish this, each of these columns was used to treat water and soil samples that had been spiked with diazinon at concentrations of 2.5 or 5 ng/mL (or ng/g). High performance liquid chromatography was then used to analyze the treated samples. The ENVI-Carb column recovered 87.99%–95.95% of the diazinon from water and soil with CVs of 5.08%–8.06%. The recoveries observed when the immunoaffinity chromatography column was used were slightly lower (52.61%–81.58%); however, it effectively clean up the soil samples.