气相色谱-质谱法测定多溴联苯醚含量的拟合校准曲线相关性的比较
Comparison of Correlationships of the Fitting Calibration Curves in GC-MS Determination of Polybromodiphenyl Ethers
摘 要
在气相色谱-质谱联用法测定多溴联苯醚类化合物含量时,常遇响应值与对应质量浓度值之间的非线性关系问题。研究并比较了一至四次回归方程的拟合校准曲线及其相关系数,虽然四次回归方程的相关系数最接近1,但从测定结果的准确性及数据统计处理方便性考虑,建议采用二次曲线拟合的方式。
多溴联苯醚
校准曲线
拟合
GC-MS
Polybromodiphenyl ethers
Calibration curves
Fitting
Abstract
In the GC-MS determination of polybromodiphenyl ethers (PBDEs), non-linearity between values of response signals and concentration of the analytes was encountered. Fitting curves as well as their correlation coefficients of the regression equations of 1st to 4th degree were comparatively studied. It was shown that the fitting curve of the quartic function gave the most satisfactory result. But considering both accuracy of determination and simplicity in statistical treatments using of the fitting calibration curve of 2nd degree was proposed for the analysis.
中图分类号 O657.63
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收稿日期 2010/8/19
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备注贾海彬(1983-),男,山东莱芜人,工程师,研究方向为增塑剂及溴系阻燃剂检测、偶氮染料检测、农药残留检测。
引用该论文: JIA Hai-bin,BIAN Zhi-hong,LIU Hai. Comparison of Correlationships of the Fitting Calibration Curves in GC-MS Determination of Polybromodiphenyl Ethers[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2011, 47(10): 1175～1177
贾海彬,边志宏,刘海. 气相色谱-质谱法测定多溴联苯醚含量的拟合校准曲线相关性的比较[J]. 理化检验－化学分册, 2011, 47(10): 1175～1177
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参考文献
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【4】陈源,陈烈强,黄华杰.GC-MS检测电子电气产品中的溴系阻燃剂［J］.塑料助剂, 2008,3:44-48.
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【6】同济大学数学教研室.高等数学(上册)［M］.上海:同济大学出版社, 1993.
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