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探讨腔内超声用于子宫切口妊娠的诊断效果
【出 处】
:
医学信息
【发表日期】
:
2015年z3期
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目的拓宽吸光度范围,提高尿碘测定准确性.方法通过降低亚砷酸加入量(3.5 ml),选择合适的波长(420 nm)和消化温度(119℃),使标准曲线吸光度范围由0.200~1.000增加至0.140~1.000.结果最低检出浓度为5 μg/L (取尿样0.2 ml);线性范围为0~300 μg/L;精密度,当尿碘含量为49.6,111.5,220.9 μg/L时,变异系数分别为4.8%,2.8%,2