Comparison Study of Three Quantitative Methods for Determination of Medium Chain Chlorinated Paraffins by Gas Chromatography-Negative Chemical Ionization-Mass Spectrometry(GC-NCI-MS)
To elucidate the differences in the determination results of the current three quantitative methods for medium chain chlorinated paraffins,standard samples with different concentrations and chlorine contents,as well as simulated samples containing short chain chlorinated paraffins and matrix interference samples,were prepared.A comparative study was conducted on the determination data of different samples using the three quantitative methods.The results indicate that the calibration curve method and multiple lin-ear regression method are suitable for the determination of samples with chlorine content similar to that of the curve chlorine content.The total response factor correction method is applicable to the determination of sam-ples with concentrations similar to that of the curve concentration.In practical detection,the deviation of the total response factor correction method is relatively controllable,and efforts should be made to establish stan-dard curves that are close to the chlorine content of the samples to ensure more reliable quantitative results.
gas chromatography-negative chemical ionization-mass spectrometry(GC-NCI-MS)medium chain chlorinated paraffinsquantitative methods
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