Griess solution

例句：

1. 1. TheGriess solution is used to detect thepresence of nitrite in food samples.
   格里斯试剂用于检测食品样本中的亚硝酸盐。
2. 2. In this experiment, we willuse the Griess solution to determine theconcentration of glucose in a sample.
   在这个实验中，我们将使用格里斯试剂来确定样品中葡萄糖的浓度。
3. 3. The Griess solution was prepared bymixing equal parts of sulfuric acid and sodiumhydroxide.
   格里斯试剂是通过将硫酸和氢氧化钠以等体积混合制备而成的。