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不同因素对酶联免疫法测定破伤风免疫球蛋白活性的影响
Authors
侯燕婷
孔英俊
+3 more
汪群慧
罗坚
苏志国
Publication date
1 January 2007
Publisher
Abstract
目的考察不同因素对酶联免疫法(ELISA)测定破伤风免疫球蛋白生物活性的影响。方法将破伤风免疫球蛋白加入不同pH的缓冲液、不同浓度的氯化钠、硫酸铵以及聚乙二醇(PEG,相对分子质量为1 000,6 000和10 000)溶液,采用ELISA法测定其活性。结果pH 5~9的缓冲溶液对活性测定的影响不大,而pH≤4和≥10的缓冲溶液都会使测定值显著降低,当pH<2或pH>12时,活性下降到正常值的10%以下。随氯化钠浓度的增加测定值先下降到正常值的37.3%,后回升到41.2%,再下降;随硫酸铵浓度的增加测定值先下降到正常值的67%,后回升到99.4%,再下降。PEG对活性测定有较大影响,随PEG浓度的增加活性测定值降低。结论缓冲液pH、盐以及PEG对破伤风免疫球蛋白活性测定有影响
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Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
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oai:ir.ipe.ac.cn:122111/3623
Last time updated on 09/11/2016
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.ipe.ac.cn:122111/35907
Last time updated on 05/12/2019