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胶乳增强免疫透射比浊法测定血清胱抑素C的方法学评价 被引量:2

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摘要 目的对胶乳增强免疫透射比浊法测定血清胱抑素C进行方法学评价。方法用免疫透射比浊法测定血清胱抑素C,依据美国临床实验室标准化委员会EP9-A2文件要求进行精密度、线性关系、回收试验、干扰试验以及与颗粒增强的免疫散射比浊法比较等系列试验。结果胶乳增强免疫透射比浊法在0.64~8.05mg/L范围内线性良好,相关方程为Y=1.024 8 X-0.094 3;批内、批间平均变异系数均小于5%;平均回收率为94.7%;5.0g/L和10.0g/L血红蛋白、3.5mmol/L和8.0mmol/L三酰甘油、79.3μmol/L胆红素干扰物对测定干扰均小于3%;与颗粒增强散射免疫比浊法比较,回归方程为Y=1.00 7 X-0.016 4,r=0.993 7,两种方法具有高度相关性(P<0.01)。结论胶乳增强免疫透射比浊法法干扰因素少、重复性好、线形范围较宽并与颗粒增强散射免疫比浊法有很好的相关性,操作简单,完全符合实验室常规检测的需要。
出处 《检验医学与临床》 CAS 2011年第22期2775-2777,共3页 Laboratory Medicine and Clinic
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参考文献4

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