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茶叶中三氯螨杀醇残留量的快速HPLC测定法
Determination of Dicofol Residue in Tea by HPLC
【摘要】 用微量化技术处理茶叶样品,样品经石油醚提取、浓硫酸磺化后,用反相液相色谱分离、测定样品处理液中的三氯杀螨醇残留量,234nm检测,外标法定量。测定低限为0.5mg/kg,回收率为91.5%~99.3%,变异系数为1.53%~6.92%之间。
【Abstract】 Residues of dicofol in tea were analyzed by HPLC using Zorabx C8 column and a UV detector at 234 nm, with a detection limit of 0. 5 mg/kg, a recovrey range of 91.5%~99.3% and a coefficient of variation range of 1.53%~6.92%.
- 【文献出处】 分析测试学报 ,JOURNAL OF INSTRUMENTAL ANALYSIS , 编辑部邮箱 ,1995年06期
- 【分类号】TS272
- 【被引频次】9
- 【下载频次】79