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用改良荧光比色法测定孕妇尿中雌三醇（Ｅ３）含量。本法批内ＣＶ为１．５％～１．９％，批间ＣＶ分别为３．２％和４．０％。用本法测定２０６例不同孕周孕妇２４小时尿中Ｅ３含量，其结果能够确切地反映中晚妊尿中Ｅ３排出量的变化。
Determination of urinary estriol (E3) in pregnant women by modified fluorescent colorimetry. The CV of this Law is 1.5% ~ 1.9%, and the inter-CVs are 3.2% and 4.0% respectively. Using this method to determine urinary E3 levels in 206 pregnant women of different gestational weeks, the results can accurately reflect the E3 emission changes in late pregnancy.