Discussion on Determination of the Pre-treatment of Aniline in Soil by Liquid Chromatography-Mass Spectrometry
Although using Liquid Chromatography-Mass Spectrometry to test aniline in soil has the advantages of less solvent usage,high sensitivity and low MDL,but the accuracy of aniline determination is severely affected by the correctness of samples pre-treatment process.To solve problems encountered in the process of aniline pretreatment in soil monitoring,this paper discussed the influence of the internal standard adding time and amount,extraction method selection,pH value adjustment,solvent amount in purification steps,concentration conditions and other key links on aniline results,and proposed corresponding solutions.This research is aiming to improve determination efficiency of HJ 1210-2021.
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