Byrne M
J Assoc Off Anal Chem. 1976 May;59(3):693-5.
Phenothiazine (thiodiphenylamine) in commercial pesticide formulations is analyzed by high-speed liquid chromatography and ultraviolet absorption detection. Phenothiazine is extracted from the formulation with methanol and injected into the liquid chromatograph. Methanol-water (1+1) is the mobile phase. The amount of phenothiazine is calculated from peak height ratios. The liquid chromatographic procedure is much faster than the infrared or colorimetric method and yields values in close agreement with both of these methods.
商业农药制剂中的吩噻嗪（硫代二苯胺）通过高效液相色谱法和紫外吸收检测进行分析。吩噻嗪用甲醇从制剂中萃取出来并注入液相色谱仪。甲醇 - 水（1 + 1）作为流动相。吩噻嗪的含量根据峰高比来计算。液相色谱法比红外或比色法快得多，并且所得结果与这两种方法的结果非常接近。
