摘要
目的建立测定羟基脲胶囊含量及有关物质检查的HPLC-CAD方法。方法采用Phenomenx Luna®NH_(2)柱(250 mm×4.6 mm,10μm,100Ǻ),柱温为40℃;以乙腈-水(82:18)为流动相,流速为1.0 mL·min^(-1),检测器为电雾式检测器,雾化温度50℃,进样量10μL。结果在选定的色谱条件下,主峰与各杂质峰均能良好分离。采用外标法计算羟基脲胶囊的含量,采用主成分自身对照法计算脲的含量;羟基脲和脲分别在0.3048~1.2700 mg·mL^(-1)(r=0.9998)、0.2411~1.0046 mg·mL^(-1)(r=1.0000)内与峰面积呈良好线性关系。脲的检测限和定量限分别为2.82 ng和8.46 ng。结论本方法操作简便,专属性强,结果可靠,可用于羟基脲胶囊的含量及有关物质的测定。
OBJECTIVE To establish an HPLC-CAD method for determination of the content and the related substances of hydroxycarbamide capsules.METHODS The determination was carried out on a Phenomenex Luna®NH_(2)(250 mm×4.6 mm,10μm,100Ǻ)column at 40℃,with acetonitrile-water(82:18)as mobile phase at a flow rate of 1.0 mL·min^(-1).The detector of charged aerosol detection was applied with a high nebulization temperature at 50℃,the injection volume was 10μL.RESULTS Under the selected chromatographic conditions,related substances were completely separated from the principal component.The content of hydroxycarbamide capsules was calculated by the external standard method of the reference substance,and the content of carbamide was calculated by the self-control method of the main component.Hydroxycarbamide and carbamide showed a good linear relationship with the peak area in the concentration range of 0.3048-1.2700 mg·mL^(-1)(r=0.9998)and 0.2411-1.0046 mg·mL^(-1)(r=1.0000),respectively.The detection limits and quantitation limits of carbamide were 2.82 ng and 8.46 ng,respectively.CONCLUSION The method is simple,specific and reliable,and can be used for the determination of the content of hydroxycarbamide capsules and related substances.
作者
李建伟
汪敏
杨伟秋
严小燕
LI Jianwei;WANG Min;YANG Weiqiu;YAN Xiaoyan(Department of Pharmacy,Changzhi Medical College,Changzhi 046000,China;Beijing Zhendong Guangming Drug Research Institute Co.,Ltd.,Beijing 100080,China)
出处
《中国现代应用药学》
CAS
CSCD
北大核心
2021年第20期2568-2571,共4页
Chinese Journal of Modern Applied Pharmacy
关键词
羟基脲胶囊
有关物质
含量
脲
hydroxycarbamide capsule
related substance
content
carbamide
