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颗粒增强免疫透射比浊法检测血清高半胱氨酸

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摘要 目的建立测定血清中高半胱氨酸(Hcy)的颗粒增强免疫透射比浊法。方法血清Hcy经S-腺苷高半胱氨酸水解酶(SAHase)与腺苷转化为S-腺苷高半胱氨酸(SAH),用抗SAH抗体与转化后SAH以及胶乳颗粒结合的SAH先后反应,根据生成免疫复合物的变化值计算出SAH浓度;依据美国CLSI标准和指南性文件,对方法进行评价。结果建立的方法检测范围为3.0~53.0μmol/L,最低检测限0.6μmol/L;批内不精密度1.00%~2.09%;日间不精密度4.69%~5.44%;方法回收率为97.3%~105.6%;Vit-C≤1 000 mg/L、胆红素≤400μmol/L、乳糜≤0.8%、Hb≤6.0 g/L对测定结果无显著性干扰;参考值为<15.5μmol/L;与高效液相色谱(HPLC)法相关性良好(r=0.994,P<0.01),测定结果无显著性差异。结论建立的方法可用于临床实验室检测血清Hcy浓度。
出处 《临床检验杂志》 CAS CSCD 北大核心 2012年第7期535-538,共4页 Chinese Journal of Clinical Laboratory Science
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参考文献12

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