基于检出概率模型的牛奶中恩诺沙星和环丙沙星总量的拉曼光谱现场快速检测的研究
作者:
作者单位:

1.上海海关动植物与食品检验检疫技术中心,上海 200135;2.上海如海光电科技有限公司, 上海 201299;3.上海安谱实验科技股份有限公司,上海 201609

作者简介:

曹晨 女 高级工程师 研究方向为食品中农兽药残留及食品中违法添加物等检测 E-mail:101491633@qq.com

通讯作者:

王敏 女 研究员 研究方向为食品中理化检测 E-mail:24614651@qq.com

中图分类号:

R155

基金项目:

国家重点研发计划(2018YFC1603503);上海市农业领域项目(19391901500);长三角科技合作项目(19395810100)


Rapid detection of enrofloxacin and ciprofloxacin in milk by Raman spectroscopy based on detection probability model
Author:
Affiliation:

1.Technical Center for Animal, Plant and Food Inspection and Quarantine of Shanghai Customs, Shanghai 200135, China;2.Shanghai Oceanhood Technology Co., Ltd, Shanghai 201299, China;3.Shanghai Anpel Laboratory Technology Co., Ltd, Shanghai 201609, China

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    摘要:

    目的 建立牛奶中恩诺沙星和环丙沙星总量的表面增强拉曼光谱快速检测方法。方法 前处理采用5%乙酸水溶液提取、二氯甲烷液-液分配净化。通过单因素实验,确定胶体银、提取液及促凝剂等表面增强最优参数。结果 恩诺沙星和环丙沙星增强后的拉曼光谱特征位移为(736±5)cm-1、(785±5)cm-1、(1 345±5)cm-1、(1 395±5)cm-1。根据定性方法验证的检出概率模型,确定牛奶中恩诺沙星和环丙沙星检出限为50 μg/kg。结论 本方法前处理操作简单,从样品前处理到出具结果仅需25 min,可用于牛奶中的恩诺沙星和环丙沙星的现场快速检测。

    Abstract:

    Objective To establish a rapid detection method for enrofloxacin and ciprofloxacin in milk products by surface enhanced Raman spectroscopy.Methods Five percent acetic acid was used for extraction and dichloromthane was used for liquid-liquid distribution and purification. The parameters including addition amount of colloidal silver, extraction solution and coagulant were determined by single factor experiment.Results Raman characteristic shifts of enrofloxacin and ciprofloxacin were (736±5)cm-1, (785±5)cm-1, (1 345±5)cm-1 and (1 395±5)cm-1. According to the position and intensity of probability of detection model, the detection limit of enrofloxacin and ciprofloxacin in milk was 50 μg/kg.Conclusion The method is simple in pretreatment, the detection is fast and the result is accurate. It only takes 25 min from sample pretreatment to the result issuing. It can be used for the rapid on-site qualitative determination of enrofloxacin and ciprofloxacin in milk.

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曹晨,赵超敏,张润何,王敏,邓晓军,于永爱,江晨舟.基于检出概率模型的牛奶中恩诺沙星和环丙沙星总量的拉曼光谱现场快速检测的研究[J].中国食品卫生杂志,2023,35(3):326-332.

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  • 收稿日期:2021-12-29
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  • 在线发布日期: 2023-05-24
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