茶叶科学2017，Vol.37Issue(6)：597-604,8.
超高效液相色谱-串联质谱同时测定茶叶中高氯酸盐和氯酸盐
Simultaneous Determination of Perchlorate and Chlorate in Tea by Ultra-peryethylene Liquid Chromatography-tandem Mass Spectrometry
摘要
Abstract
A method using ultra high performance liquid chromatography-tandem mass spectrometry was developed for the determination of perchlorate and chlorate in tea. Tea extracts were purified by ProElut C18, separated by Click Xion column. The mobile phases were 5 mmol·L-1 ammonium formate/water (A) and methanol: 5 mmol·L-1 ammonium formate/water =9︰1 (B). The pH was adjusted to 3.2 by formic acid and the samples were then analyzed by UPLC-MS/MS with multiple reaction monitoring mode (MRM). The method was applied to detect perchlorate and chlorate in tea. The average recovery and relative standard deviations were in the range of 60.5%-85.8% and 4.9%-7.7%, respectively. The detecting limits of perchlorate and chlorate were 3 μg·kg-1 and 5 μg·kg-1, respectively. The method is simple, quick and high sensitive, which is suitable for the determination of perchlorate and chlorate in tea.关键词
超高效液相色谱-串联质谱/茶叶/高氯酸盐/氯酸盐Key words
ultra high performance liquid chromatography-tandem mass spectrometry/tea/perchlorate/chlorate分类
轻工纺织引用本文复制引用
宋正规,赵春玲,曹丽丽,张书芬,周子焱,张爱芝,沈坚,傅晓,李和生,邢家凓,满正印..超高效液相色谱-串联质谱同时测定茶叶中高氯酸盐和氯酸盐[J].茶叶科学,2017,37(6):597-604,8.基金项目
浙江省食品药品监管系统科技计划项目(SP201617) （SP201617）
