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预防医学  2018, Vol. 30 Issue (10): 1007-1010    DOI: 10.19485/j.cnki.issn2096-5087.2018.10.008
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应用UPLC-FLD技术检测食用菌荧光增白剂
王天娇,吴平谷,胡争艳,王立媛,倪竹南,汤鋆
浙江省疾病预防控制中心,浙江 杭州 310051
Application of UPLC-FLD technology to detection of fluorescent whitening agents in edible fungi
WANG Tian-jiao,WU Ping-gu,HU Zheng-yan,WANG Li-yuan,NI Zhu-nan,TANG Jun
Zhejiang Provincial Center for Disease Control and Prevention,Hangzhou,Zhejiang 310051,China
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摘要 目的 应用超高效液相色谱-荧光检测(UPLC-FLD)技术检测食用菌中多种荧光增白剂。方法 从超市、农贸市场和网络商店购买蘑菇、杏鲍菇和金针菇等新鲜散装菌菇150份,样品粉碎后采用水浴加热超声法提取,采用ACQUITY UPLC BEH C18色谱柱(1.7 μm,2.1 mm×100 mm)进行分离,流动相为乙腈/甲醇混合溶液和含20 mmol四丁基溴化铵的甲醇水溶液,梯度洗脱,应用UPLC-FLD进行分析。结果 在25~1 000 ng/mL浓度范围内,该方法的线性关系良好,相关系数(r)均>0.99;方法的检出限为0.20~0.29 mg/kg,定量限为0.67~0.97 mg/kg;在1.0、5.0和10.0 mg/kg三个水平条件下,加标回收率为81.6%~103.5%,相对标准偏差(RSD)均<10%。结论 应用该方法测定食用菌中荧光增白剂的灵敏度高,重现性好,回收率和线性也均符合检测要求。
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王天娇,吴平谷,胡争艳,王立媛,倪竹南,汤鋆
关键词 食用菌超高效液相色谱法荧光检测器荧光增白剂    
AbstractObjective To apply ultra performance liquid chromatography-fluorescence detection(UPLC-FLD)to detecting various fluorescent whitening agents in edible fungi. Methods We obtained the comminuted edible fungi samples by water bath heating and ultrasonic extraction. We detected the content of fluorescent whitening agents in 11 edible fungi edible by UPLC-FLD.The optimal chromatographic conditions were as follows:ACQUITY UPLC BEH C18 chromatographic column(1.7 μm,2.1 mm× 100 mm);acetonitrile / methanol mixed solution and methanol aqueous solution containing 20 mmol four butyl ammonium bromide for gradient elution. Results Within the concentration ranged from 25 to 1 000 ng/mL,the linear relationship was good because the correlation coefficient was more than 0.99. The detection limit of the 11 fluorescent brighteners was 0.20-0.29 mg/kg and the quantitative limit was 0.67-0.97 mg/kg. In the concentration of 1.0,5.0 and 10.0 mg/kg,the recovery rate of the addition standard was 81.6%-103.5%,the relative standard deviation(RSD)of the samples was less than 10%. Conclusion This method has high sensitivity,good repeatability,ideal recovery rate and linearity for detection of fluorescent brighteners in edible fungi.
Key wordsEdible fungi    Ultra performance liquid chromatography    Fluorescence detector    Fluorescent whitening agent
          出版日期: 2018-09-26
中图分类号:  R155.5  
基金资助:国家青年科学基金项目(31501565);浙江省分析测试科技计划项目(2016C37028)
通信作者: 吴平谷,E-mail:pgwu@cdc.zj.cn   
作者简介: 王天娇,硕士,医师,主要从事理化检验工作
引用本文:   
王天娇,吴平谷,胡争艳,王立媛,倪竹南,汤鋆. 应用UPLC-FLD技术检测食用菌荧光增白剂[J]. 预防医学, 2018, 30(10): 1007-1010.
WANG Tian-jiao,WU Ping-gu,HU Zheng-yan,WANG Li-yuan,NI Zhu-nan,TANG Jun. Application of UPLC-FLD technology to detection of fluorescent whitening agents in edible fungi. Preventive Medicine, 2018, 30(10): 1007-1010.
链接本文:  
http://www.zjyfyxzz.com/CN/10.19485/j.cnki.issn2096-5087.2018.10.008      或      http://www.zjyfyxzz.com/CN/Y2018/V30/I10/1007
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