Sensitive spectrophotometric method for determination of some phenothiazine drugs
作者:Kanchan Upadhyay、Anupama Asthana、Raunak Kumar Tamrakar
DOI:10.1007/s11164-014-1838-8
日期:2015.10
A new simple and sensitive spectrophotometric method for some phenothiazine derivatives has been developed. The proposed method is based on the reaction of phenothiazine derivatives promethazine hydrochloride, chlorpromazine hydrochloride, triflupromazine hydrochloride, prochlorperazine, and trifluoperazine with potassium iodate followed by reaction of liberated iodine with leuco crystal violet (LCV) and measurement of the color of the oxidized LCV at 598 nm. The method showed a good linearity in the ranges 0.05–4.0, 0.02–2.0, 0.05–5.0, 0.1–8.0, and 0.05–2.0 µg mL−1 respectively. The optimum conditions and other analytical parameters were evaluated. The proposed methods have been applied successfully to the analysis of phenothiazine derivatives in pure form and in their dosage forms, and no interference was observed from common excipients present in pharmaceutical formulations.
针对某些吩噻嗪衍生物开发了一种简单灵敏的分光光度法。该方法是将吩噻嗪衍生物盐酸异丙嗪、盐酸氯丙嗪、盐酸三氟丙嗪、丙氯哒嗪和三氟拉嗪与碘酸钾反应,然后将生成的碘与亮晶紫 (LCV) 反应,在 598 nm 波长处测定氧化 LCV 的颜色。该方法的线性范围分别为 0.05-4.0、0.02-2.0、0.05-5.0、0.1-8.0 和 0.05-2.0 µg mL-1 。对最佳条件和其他分析参数进行了评估。所提出的方法已成功地应用于纯品及其剂型中吩噻嗪衍生物的分析,且未观察到药物制剂中常见辅料的干扰。