豆制品和粉干中乌洛托品的气质联用测定
目的 建立豆制品(如腐竹、豆腐干等)和粉干中乌洛托品的气质联用(GC-MS)测定方法。方法 样品中乌洛托品经三氯乙酸水溶液提取、阳离子交换柱净化后GC-MS测定。 结果 该方法的线性范围为0.1~5 mg/kg, 相关系数r为0.998; 检测限为0.05 mg/kg; 回收率为78.5%~97.0%; 相对标准偏差(RSD)为5.7%~10.9%。结论 该方法准确、操作简单, 可用于实际样品中乌洛托品的含量测定。
Objective To establish a qualitative and quantitative method for the determination of urotropine in soybean products and cereal noodles by gas chromatography-mass spectrometry (GC-MS). Methods The sample was extracted by 1.5% trichloroacetic acid aqueous solution. After purified by cation exchange cartridge, the sample solution was detected by GC-MS. Results A calibration curve ranging from 0.1 to 5 mg/kg of urotropine was used to establish instrument response with relative coefficient r＝0.998. The recovery was 78.5%~97.0% with relative standard deviation (RSD) 5.7% to 10.9%. The limit of detection was 0.05 mg/kg. Conclusion The method is accurate and easy to operate. It is suitable for the determination of urotropine in real sample.
标题：豆制品和粉干中乌洛托品的气质联用测定
英文标题：Determination of urotropine in soybean products and cereal noodles by gas chromatography-mass spectrometry
作者：
徐小民 浙江省疾病预防控制中心
黄百芬 浙江省疾病预防控制中心
任一平 浙江省疾病预防控制中心
中文关键词:乌洛托品,气质联用(GC-MS),豆制品,粉干,
英文关键词:urotropine,gas chromatography-mass spectrometry (GC-MS),soybean products,cereal noodles,
发表日期：2013-04-18
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