Using thymol-sodium hypobromite as chromogenic reagent, and extracting the colour formed with butanol, a spectrophotometric method for the determination of arginine in fermentation broth was studied.
2
大气污染应急监测应首选快速法，包括仪器法、检气管法、试纸比色法和溶液快速法。
Rapidness is at the first place in air pollution emergency monitoring, which includes instrument method, detector tube method, test paper colorimetry and solution rapidness method.
3
方法使用比色法和pH值对照对两者不同配伍比例时溶液的澄明度进行检查。
Methods The chromatometry and PH value were detected in varied ratio liquid of two drugs.
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