白酒中敌敌畏的固相微萃取

Solid-Phase Microextraction of Dichlorvos from White Spirits

用大口径毛细管柱气相色谱法、氢焰离子化检测器进行分析测定。该方法在０．５～１２ｍｇ／Ｌ浓度范围内有很好的线性关系。相关系数为０．９９８３；最低检测浓度可达０．０５ｍｇ／Ｌ。本方法把样品的萃取浓缩与进样分析一体化完成。

DDVP was isolated from white spirits using SolidPhase Microextraction (SPME) technique, and determined by widebore capillary gas chromatography (GC) coupling a flame ionization detector. This method had an excellent linearity among 0.5～12 mg/L.Correlation coefficient and minimum detectable concentration were 0.9983 and 0.05mg/L respectively. This method enables the extraction, the enrichment and the injection to intergrate into a single step, and it was free.solvent in whole process. SPME is an advanced technique for the extraction and analysis of the samples.