methyl red test

例句：

1. 1. This is a standard procedure for conducting the methyl red test.
   这是进行甲基红试验的标准程序。
2. 2.The methyl red test is used to detect the presence of methemoglobin in the blood.
   甲基红试验用于检测血液中是否存在高铁血红蛋白。
3. 3. During the methyl red test, the patient's urine is tested for the presence of methemoglobin.
   在甲基红试验期间，患者的尿液被用来检测是否存在高铁血红蛋白。