microcoulometric gas chromatography

例句：

1. 1.The microcoulometric methodis used to determine the concentration ofa substance in a sample.
   微量滴定法用于测定样品中物质的浓度。
2. 2.The microcoulometric method is asensitive and accurate technique for analyzing trace amountsof chemicals.
   微量滴定法是一种敏感且准确的分析化学物质痕量的技术。
3. 3. Inmicrocoulometric analysis, a smallamount of sample is added to a solutioncontaining a reagent that reacts withthe sample.
   在微量滴定分析中，一小份样品被添加到含有与样品反应的试剂的溶液中。