SPE-GC-MS联用测定饮料中尿烷

Determination of Urethane in Drinks by SPE-GC-MS

采用固相萃取法对多种饮料中尿烷进行定量分析。结果表明该方法测得尿烷的回收率为平均回收率为92.0%～104%,方法精密度为0.92%,相对标准偏差RSD为1.9%,检出限为2.5 g/L。该测定方法灵敏度高,准确度好,可用于质量控制。

Quantitative analysis of urethane in a variety of drinks with the method of solid phase extraction.The results show that the recovery of urethane who’s measuring average rate of this method was 92 %~104 %,the precision was 0.92 %,the relative standard deviation of RSD was 1.9 %,the detection limit was 2.5 μg/L.The determination method was of high sensitivity,good accuracy,and it can be used for quality control.