phenol reagent

例句：

1. 1. The chemical test used to detect the presence of phenol in water samples is known as the phenol reagent test.
   用于检测水中苯酚存在的化学测试被称为酚试剂测试。
2. 2. The phenol reagent reacts with the dye to form a colored compound.
   酚试剂与染料反应形成有色化合物。
3. 3. The phenol reagent was used to identify the source of the contaminated water.
   酚试剂被用来识别受污染水的源头。