固相萃取-流动注射化学发光法测定猪肉中盐酸克伦特罗

食品科学 ›› 2012, Vol. 33 ›› Issue (20): 167-170.

固相萃取-流动注射化学发光法测定猪肉中盐酸克伦特罗

哈婧，王秋平，张佳丽

河北科技大学化学与制药工程学院

收稿日期:2011-08-22 修回日期:2012-08-27 出版日期:2012-10-25 发布日期:2012-11-09
通讯作者: 哈婧 E-mail:hajing@foxmail.com
基金资助:
奥普力农研制

Determination of Clenbuterol in Pork by Solid Phase Extraction Combined with Flow Injection Chemiluminescence

Received:2011-08-22 Revised:2012-08-27 Online:2012-10-25 Published:2012-11-09

摘要/Abstract

摘要： 在碱性条件下，鲁米诺与铁氰化钾产生化学发光，盐酸克伦特罗能抑制该发光强度，猪肉样品中的盐酸克伦特罗用乙酸乙酯提取，用固相萃取柱预分离和净化，结合流动注射技术和化学发光检测，建立固相萃取-流动注射化学发光法测定猪肉中盐酸克伦特罗的检测方法。结果表明：采用所建立的方法测定盐酸克伦特罗快速、灵敏；方法检出限为0.026μg/mL，线性范围为0.05～1.0μg/mL，相对标准偏差为1.16%(n=8)，用于测定肉样品中的盐酸克伦特罗，平均回收率为91.96%，测定结果与气质联用和高效液相色谱法测定结果相当。

关键词: 固相萃取, 流动注射, 化学发光, 盐酸克伦特罗

Abstract: Clenbuterol is known to be able to inhibit the chemiluminescence generated from the oxidation of luminal by ferricyanatum kalium under alkaline conditions. Based on this principle, an analytical method was developed for the determination of clenbuterol in pork using solid phase extraction and flow injection chemiluminescence. Clenbuterol residue present in pork was extracted into ethyl acetate and cleaned up using a solid-phase extraction cartridge before analysis. The results indicated that the developed method was rapid and sensitive. The limit of detection was 0.026 μg/mL and the linear range was 0.05–1.0 μg/mL. The relative standard deviation (RSD) for 8 repeated determinations was 1.16%. The average recovery rate of clenbuterol in blank pork sample was 91.96%, which was comparable to the results obtained by GC-MS or HPLC.

Key words: solid phase extraction, chemiluminescence, flow injection, clenbuterol

中图分类号:

中图分类号：O657.3

哈?婧，王秋平，张佳丽. 固相萃取-流动注射化学发光法测定猪肉中盐酸克伦特罗[J]. 食品科学, 2012, 33(20): 167-170.

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