Determination of potential genotoxic impurity in ecabet sodium active pharma-ceutical ingredient by HPLC-MS/MS
10.11665/j.issn.1000-5048.20180310
- VernacularTitle:HPLC-MS/MS法测定依卡倍特钠原料药中潜在遗传毒性杂质
- Author:
Xiying DING
1
;
Xiaolong JI
;
Bo LI
;
Baiyang MAO
;
Fang YAN
;
Bin DI
Author Information
1. 中国药科大学江苏省药物分子设计与成药性优化重点实验室
- Keywords:
ecabet sodium;
genotoxic impurities;
HPLC-MS/MS
- From:
Journal of China Pharmaceutical University
2018;49(3):317-321
- CountryChina
- Language:Chinese
-
Abstract:
To develop a sensitive analytical method for the determination of the genotoxic impurity mono ethyl ester of ecabet (Imp-I),an HPLC-MS/MS technique was employed. Imp-I was synthesized according to the previ-ous literatures. MS/MS and NMR were used to confirm the structure of Imp-I. A Thermo C18column was used for chromatographic separations. The mobile phase consisting of A:5 mmol/L ammonium acetate (pH adjusted to 3. 0 with formic acid)and B:acetonitrile,with a gradient program:0 min 50%B,4 min 50%B,12 min 80%B,16 min 80%B,16. 1 min 50%B and 20 min 50%B. The column was maintained at 40 °C throughout the analysis.All measurements were carried out with the mass spectrometer operated under the negative ESI mode. The selective reaction monitor (SRM)transition was used. Good linearity was obtained for Imp-I over the concentration range of 4 150 ng/mL with the coefficient of determination (r)of 0. 999. And the LOQ was 4 ng/mL. A rapid and sensi-tive HPLC-ESI-MS/MS method was developed for quantitative analysis of Imp-I in ecabet sodium APIs. This method can be of used for quality assurance of ecabet sodium in bulk commercial drugs.
