止汗活性成分的电位滴定/比浊滴定法
Potentiometric/turbidometric titration of antiperspirant actives.
作者信息
Johnston Clifford T, Hem Stanley L, Guenin Eric, Mattai Jairajh, Afflito John
机构信息
Department of Agronomy, Purdue University, West Lafayette, IN 47907, USA.
出版信息
J Cosmet Sci. 2003 Mar-Apr;54(2):113-8.
A titration procedure that simultaneously monitors the pH and turbidity of an antiperspirant solution during neutralization with sodium hydroxide was developed to characterize antiperspirant actives. Aluminum chloride, aluminum chlorohydrate (ACH), and aluminum zirconium glycine complex (AZG) gave distinctive pH/turbidity profiles. The activated forms of aluminum chlorohydrate (ACH') and aluminum zirconium glycine complex (AZG') produced more turbidity than the non-activated forms. On an equimolar basis, AZG' produced more turbidity than any of the antiperspirant actives tested.
开发了一种滴定程序，可在使用氢氧化钠中和止汗剂溶液的过程中同时监测其pH值和浊度，以表征止汗活性成分。氯化铝、碱式氯化铝（ACH）和甘氨酸铝锆配合物（AZG）呈现出独特的pH/浊度曲线。碱式氯化铝的活性形式（ACH'）和甘氨酸铝锆配合物的活性形式（AZG'）比非活性形式产生更多的浊度。在等摩尔基础上，AZG'产生的浊度比任何测试的止汗活性成分都要高。
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