作者:G. K. Webster、R. R. Lemmer、S. Greenwald
DOI:10.1093/chromsci/41.2.57
日期:2003.2.1
A rapid liquid chromatographic method is validated for the quantitative analysis of phentolamine. Phentolamine exists in three forms for this investigation: as a mesylate salt, hydrochloride salt, and free base. In solution, phentolamine dissociates from its salt and is chromatographed as free phentolamine. This validation confirms the analysis of each form, which is simply based upon molar mass differences encountered in weighing. As such, both the United States Pharmacopeia hydrochloride and mesylate standards are used throughout this validation to demonstrate this equivalency. The validation demonstrates that this method may be used to quantitate phentolamine, regardless of its salt form.
快速液相色谱法被验证用于酚妥拉明的定量分析。在这项研究中,酚妥拉明以三种形式存在:作为甲磺酸盐、盐酸盐和游离碱。在溶液中,酚妥拉明从其盐中解离出来,并以游离的酚妥拉明形式进行色谱分析。这一验证确认了每种形式的分析,这仅仅是基于称重过程中遇到的摩尔质量差异。因此,整个验证过程中使用了美国药典的盐酸盐和甲磺酸盐标准,以证明这种等效性。该验证表明,无论酚妥拉明的盐形式如何,这种方法都可用于其定量分析。