Simultaneous determination of clenbuterol and ractopamine in animal tissues by AlphaLISA
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Simultaneous determination of clenbuterol and ractopamine in animal tissues by AlphaLISA
Journal of Chongqing Medical UniversityVol. 43, Issue 11, Pages: 1469-1474(2018)
作者机构:
1. 重庆大学附属肿瘤医院药学部,重庆,400030
2. 重庆医科大学药学院药物分析教研室,重庆,400016
3. 重庆出入境检验检疫局重庆市进出口食品安全工程技术研究中心,重庆,400020
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Published:2018,
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Xiang Lu, Gong Qian, Wang Zhi, et al. Simultaneous determination of clenbuterol and ractopamine in animal tissues by AlphaLISA. [J]. Journal of Chongqing Medical University 43(11):1469-1474(2018)
DOI:
Xiang Lu, Gong Qian, Wang Zhi, et al. Simultaneous determination of clenbuterol and ractopamine in animal tissues by AlphaLISA. [J]. Journal of Chongqing Medical University 43(11):1469-1474(2018)DOI:
Simultaneous determination of clenbuterol and ractopamine in animal tissues by AlphaLISA
Objective:To develop an amplified luminescent proximity homogeneous assay linked immunosorbent assay(AlphaLISA) method for simultaneous determination of clenbuterol(CLB) and ractopamine(RAC) in animal tissues. Methods:The samples were subjected to enzymatic extraction with β-glucuronidase/sulfatase and ammonium acetate,degreased with n-hexane,and filtrated with a filter membrane. Then the filtrate underwent reactions with biotinylated antigen,antibody,donor beads,and acceptor beads;subsequently AlphaLISA was used for determination. Results:CLB and RAC showed a good linear relationship in the range of 0.1 to 50 ng/mL(R2>0.98),with a limit of detection of 0.02 ng/mL. The recovery rates of CLB + RAC(1∶1),CLB,and RAC at spiking levels of 5,10,and 20 μg/kg were 88.8%-102.8%,86.6%-98.3%,and 84.2%-103.2%,respectively;the relative standard deviations were all less than 12%. Conclusion:The method developed is simple,rapid,accurate,and reliable,thus making it applicable for the determination and screening of CLB and RAC in animal tissues.