Analysis of Pentachloronitrobenzene and Degradation Products Residues in American Ginseng Planting Soil
The residues of PCNB and degradation products in American ginseng planting soil were evaluate to provide experimental basis for the treatment and safety assessment.Soil samples were collected from different regions,gas chromatography(GC-ECD)was used to determine the residues of PCNB and its degradation products PCA and PCTA in soil.The test results indicated that PCNB and its degradation products could be detected in all samples,and there was a significant positive correlation between the residual amount of PCNB and its degradation products.There were significant differences in residual levels among different regions.
万方数据
维普
