Lowry J B
J Pharm Sci. 1979 Jan;68(1):110-1. doi: 10.1002/jps.2600680138.
Benzalkonium chloride, benzethonium chloride, and chlorhexidine gluconate were assayed quantitatively by a direct spectrophotometric method with bromthymol blue buffered at pH 7.5. The method shows good results at concentrations of 0--300 microgram/ml and in the presence of epinephrine bitartrate, phenylephrine hydrochloride, pilocarpine hydrochloride, and polyvinyl alcohol.
采用在pH 7.5缓冲的溴百里酚蓝直接分光光度法对苯扎氯铵、苄索氯铵和葡萄糖酸氯己定进行定量分析。该方法在浓度为0 - 300微克/毫升以及存在重酒石酸肾上腺素、盐酸去氧肾上腺素、盐酸毛果芸香碱和聚乙烯醇的情况下显示出良好的结果。
