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比较巴比妥酸(BA)及二乙基硫代巴比妥酸(DETB)提取两种测定尿尼古丁代谢物(UNM)的方法。两者均具有特异性。吸烟支数与UMN/尿肌酐比值间呈正相关,相关系数分别为0.713及0.728(P值均<0.001)。吸烟支数不同各组的UNM/尿
Two methods for the determination of urinary nicotine metabolites (UNMs) were extracted from barbituric acid (BA) and diethyl thiobarbituric acid (DETB). Both are specific. There was a positive correlation between smoking count and UMN / creatinine ratio, the correlation coefficients were 0.713 and 0.728, respectively (all P <0.001). Smoking counts varied among groups of UNM / urine