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KHC3法检测血清胆红素 被引量:2

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摘要 目的采用KHC3测定血清中总胆红素和直接胆红素,并进行了方法学和临床应用的评价。方法按照NCCLS评价方案对线性、精密度、方法比较和干扰试验作评价。结果精密度:总胆红素(TB)批内n=20,x^-低=(34.1±1.42)μmol/L,CV%=2.94%;x^-高=(360.0±2.04)μmol/L,CV%-1.47%。直接胆红素(DB)批内n=20,x^-低(10.0±0.84)μmol/L,CV%=3.02%,x^-高(170.0±2.54)μmol/L,CV%=2.13%。TB批间n=20,x^-低(34.1±1.99)μmol/L,CV%=3.52%;x^-高=(360.0±5.72)μmol/L,CV%=3.99%。DB批间n=20,x^-低(10.0±1.09)μmol/L,CV%=4.05%;x^-高(170.0±6.03)μmol/L,CV%=4.92%。线性范围:TB在0-480μmol/L、DB在0~170μmol/L范围内测定线性良好。回收试验:TB平均回收率为100.5%,DB平均回收率为99.8%。比对实验:与改良J—G法比较,YTB—1.005X TB+0.789,r=0.991,YDB=0.953 XDB+1.975,r=0.978。参考范围:TB为1.55~22.7μmol/L,DB为0.25~5.01μmol/L。干扰试验:血红蛋白=10.0g/L,葡萄糖=5%,枸橡酸钠=0.38%,肝素=1250μ/L,甘油三脂〈3.2mmol/L,维生素C〈0.5g/L,EDTA—K2〈7.5g/L时,对TB测定结果无显著影响;血红蛋白=2.0g/L,葡萄糖=5%,枸橡酸钠=0.38%,肝素〈625μ/L,甘油三脂〈3.2mmol/L,维生素C〈0.5g/L,EDTA—K2〈4.5g/L时,对DB测定结果无显著影响。结论KHC3法测定胆红素准确度高,线性范围宽,精密度好,抗干扰能力强,溶血、脂血无明显干扰,液体单试剂,室温保存,试剂稳定,无需配制直接上机使用,是一种崭新、实用的胆红素测定方法。
出处 《国际检验医学杂志》 CAS 2007年第1期82-83,共2页 International Journal of Laboratory Medicine
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