中国水产科学研究院南海水产研究所,农业农村部水产品加工重点实验室,广东 广州 510300
王 强,硕士,助理研究员,研究方向:水产品检测与风险评估,E-mail:wang008.qiang@163.com
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王强,王旭峰,赵东豪等.化学发光酶免疫分析法检测水产品中残留的麻醉剂丁香酚[J].分析测试学报,2022,41(03):354-360.
WANG Qiang,WANG Xu-feng,ZHAO Dong-hao,et al.Determination of Anaesthetic Eugenol Residues in Aquatic Products by Chemiluminescene Enzyme Immunoassay[J].Journal of Instrumental Analysis,2022,41(03):354-360.
王强,王旭峰,赵东豪等.化学发光酶免疫分析法检测水产品中残留的麻醉剂丁香酚[J].分析测试学报,2022,41(03):354-360. DOI: 10.19969/j.fxcsxb.21071202.
WANG Qiang,WANG Xu-feng,ZHAO Dong-hao,et al.Determination of Anaesthetic Eugenol Residues in Aquatic Products by Chemiluminescene Enzyme Immunoassay[J].Journal of Instrumental Analysis,2022,41(03):354-360. DOI: 10.19969/j.fxcsxb.21071202.
将丁香酚(Eul)与4-溴丁酸叔丁酯进行衍生化反应,合成了半抗原4-(4-烯丙基-2-甲氧基-苯氧基)-丁酸(Eul-4-Tbl)。通过偶联载体蛋白并免疫动物后获取丁香酚多克隆抗体,建立了丁香酚的间接竞争化学发光酶免疫分析方法(ic-CLEIA)。水产样品经乙腈提取,Oasis PRiME HLB固相萃取小柱净化后用于测定。结果表明,ic-CLEIA的最佳反应条件为:包被原质量浓度为0.125 μg/mL,抗体稀释40 000倍,抗体反应时间为30 min,药物稀释液为PBS。该方法的半抑制浓度(IC,50,)为1.28 μg/L,检测线性范围为0.25 ~ 6.43 μg/L,检出限(LOD,IC,10,)为0.11 μg /L。样品中丁香酚的加标回收率为76.6%~108%,相对标准偏差(RSD)为5.9% ~ 12%,测定结果与液相色谱-串联质谱法具有良好的相关性(,r, = 0.990 4),可用于水产品中麻醉剂丁香酚残留的快速测定。
Eugenol was derived with tert-butyl 4-bromobutanoate to obtain a hapten 4-(4-allyl-2-methoxy-phenoxy)-butyric acid(Eul-4-Tbl).The hapten was coupled to carrier protein as immunogen for animal immunization,and a polyclonal antibody against eugenol was raised.Thus,an indirect competitive chemiluminescent enzyme-linked immunosorbent assay(ic-CLEIA)was developed for the determination of eugenol.The samples were extracted with acetonitrile,and then cleaned up with an Oasis PRiME HLB solid-phase extraction column.Results showed that the optimized assay conditions were as follows:coating antigen concentration:0.125 μg/mL,dilution ratio of antibody:40 000,reaction time of antibody:30 min,dilution solution for analyte:PBS.The half inhibition concentration(IC,50,)of the developed ic-CLEIA was 1.28 μg/L,the liner range was 0.25-6.43 μg/L,and the limit of detection(LOD,IC,10,) was 0.11 μg/L.The spiked recoveries of eugenol in aquatic products were in the range of 76.6%-108%,with relative standard deviations of 5.9%-12%.The results obtained by this method exhibited good correlation to those of HPLC-MS/MS(,r ,= 0.990 4).The developed method was suitable for rapid determination of anaesthetic eugenol residues in aquatic product.
丁香酚麻醉剂化学发光酶免疫分析多克隆抗体水产品
eugenolanaestheticchemiluminescene enzyme immunoassaypolyclonal antibodyaquatic product
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