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本文介绍用GC／MS选择离子作为定量手段，对10种内源性本性激素尿中的排放规律进行研究，发现某些内源性物质的比率日内和日间均较为稳定，可作为监控指标。
This article describes the use of GC / MS selected ions as a quantitative means of 10 kinds of endogenous sex hormone urinary emissions in the study found that some endogenous substances in the ratio of days and days are more stable, can be used as a monitoring indicator.