phosphomolybdic acid reagent

例句：

1. 1.This reagent is used to detect the presence of heavy metals in water samples.
   这种试剂用于检测水样中重金属的存在。
2. 2.The scientist used this reagent to analyze the chemical composition of the sample.
   科学家使用这种试剂来分析样本的化学成分。
3. 3.The reagent was tested for its effectiveness in removing pollutants from the environment.
   该试剂被测试了其从环境中去除污染物的有效性。