Analyzing the 16 Kinds Plasticizer of Liquor by GC-MS

Abstract:

An analytical multiresidue method for the simultaneous determination of 16 kinds plasticizer in Liquor by GC-EI-MS was developed. Through the process liquor samples by boiling water bath evaporation，nitrogen blowing concentrated treatment，water treatment，direct extraction of four kinds of pretreatment methods for processing，the best method was found..thai is Used a boiling water bath and n-hexane liquid-liquid exraction to deal with liquor sample，then were determined by using a gas chromatography mass spectrometry operated in electron ionization mode and quant ified in selective ion monitoring mode. The results show that the detection limit of the method was less than 1. 0 kg for the most of pest icides. The developed method was linearover the range assayed，10~ 500 g/L，with correlation coefficients>0.996. the degree of precision was ≤7.2%，the adding standard recovery of the ways established was between 85%-120%.