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为测定血、尿等生物材料中的尼古丁含量,1972年lsaac报导以乙醚为提取剂,用气相色谱法测定尼古丁含量。1980年Feyerabend提出用乙醚两次提取分离法。但Otto指出该法重现性差,回收率不高,其主要原因是玻璃容器壁吸附了尼古丁。建议加NH_4OH溶液,消
For the determination of blood, urine and other biological materials in the nicotine content, lsaac reported in 1972, ethyl ether extract, determination of nicotine content by gas chromatography. 1980 Feyerabend proposed two ether extraction separation. But Otto pointed out that the method reproducibility is poor, the recovery rate is not high, the main reason is that the glass container wall nicotine adsorption. It is recommended to add NH_4OH solution, eliminate