摘要
建立了离子色谱-串联质谱联用技术同时测定小麦粉中草甘膦、氨甲基膦酸、氯酸盐和高氯酸盐的分析方法。小麦粉经甲醇水提取,固相萃取净化,经IonPac AS19(250 mm×2 mm)阴离子色谱柱分离,进入质谱进行检测。结果表明,4种污染物在各自的质量浓度范围内线性关系良好,线性相关系数(R^(2))均大于0.997,平均回收率75.0%-109.0%,RSD(相对标准偏差)在1.9%-10.4%。对草甘膦、氨甲基膦酸、氯酸盐、高氯酸盐的定量限(S/N=10)分别为20、40、6.4、3.2μg/kg,该方法具有简单、灵敏度高、准确性高的优势,适用于同时测定小麦粉中草甘膦、氨甲基膦酸、氯酸盐和高氯酸盐。
In this paper,an analytical method for the simultaneous determination of glyphosate,aminomethylphosphonic acid,chlorate and perchlorate in wheat flour by ion chromatography-tandem mass spectrometry is developed.The wheat flour was extracted with methanol water and cleaned up by solid phase extraction,then separated on an IonPac AS19(250 mm×2 mm)anion chromatographic column,and finally detected by mass spectrometry.Recoveries are in the range of 68.6%-109%,and the RSD are all in the range of 1.9%-10.4%.The quantitation limits of Glyphosate,AMPA,Chlorate、Perchlorate are 20、40、6.4、3.2μg/kg respectively.The method has the advantages of simplicity,high sensitivity and accuracy and is suitable for the simultaneous determination of glyphosate,aminomethylphosphonic acid,chlorate and perchlorate in wheat flour.
作者
王娟
王敬
张旭
陈琛
谢雨泽
贾文轩
WANG Juan;WANG Jing;ZHANG Xu;CHEN Chen;XIE Yuze;JIA Wenxuan(Hebei Food Safety Key Laboratory,Key Laboratory of Special Food Supervision Technology for State Market Regulation,Hebei Engineering Research Center for Special Food Safety and Health,Hebei Food Inspection and Research Institute,Shijiazhuang Hebei 050227,China)
出处
《河北省科学院学报》
CAS
2023年第6期47-53,共7页
Journal of The Hebei Academy of Sciences
基金
河北省市场监督管理局科研计划项目(2021ZD15)。
关键词
离子色谱-串联质谱法
小麦粉
草甘膦
氨甲基膦酸
氯酸盐
高氯酸盐
Ion chromatography-tandem mass spectrometry
Wheat flour
Glyphosat
Aminomethylphosphonic acid
Chlorate
Perchlorate
