期刊论文

Lin Zhu-Guang

中文

分析化学

0253-3820

2008

36

12

1702-1706

10.3321/j.issn:0253-3820.2008.12.020

湖南农业大学青年科学基金（No.07QN35）资助项目；

本校为第一且通讯机构

水生生物样品去壳、搅碎、匀浆;干货样品则首先烘干、研磨和过筛.以丙酮作为提取剂超声波辅助提取3次,提取液经无水硫酸钠脱水后进行氮吹浓缩;浓缩液经处理过的 Florisil 硅藻土吸附柱净化和乙酸乙酯/己烷(1/5,V/V)洗脱剂洗脱与浓缩后,采用气相色谱.电子轰击电离源/质谱法进行定性分析与内标法定量分析.实验优化与选择了提取剂的种类、吸附剂的种类及其活化条件、洗脱剂的种类等样品前处理过程,并讨论了分析空白值的控制问题.分析方法的线性相关系数均大于0.99987,方法检出限均小于3.67 μg/L,平均加标回收率为64.1%～124%,方法的相对标准偏差均小于16.4%.此分析方法成功地应用于3种鱼类(刀鱼、...

The aquicolous organism samples were shelled, stirred and mixed respectively. The dried samples were dried deeper, rubbed and sifted out. The treated sample was extracted by acetone thrice in ultrasonic bath, then mixed the three extracted solutions. Anhydrous Na2SO4 was used to remove water in extract solution and N2 was used to concentrate the solution. The concentrated solution was transferred to Florisil column and the mixture of acetic ester and alkyl (1/5, v/v) was used to elute it. At last, the treated samples were analyzed qualitatively by gas chromatography-electron impact mass spectr...