Griess test

例句：

1. 1.The researchers conducted a Griess test to detect the presence of nitrite in the sample.
   研究人员进行了格里斯试验来检测样本中的亚硝酸盐含量。
2. 2.The teacher asked the students to perform a Griess test on the chemical reaction.
   老师要求学生们对化学反应进行格里斯试验。
3. 3.The scientists used the Griess test to identify the presence of bacteria in the water sample.
   科学家们使用格里斯试验来识别水样中细菌的存在。