Simultaneous Determination of Lysophophatidyl Choline and Lysophosphatidyl Ethanolamine in Nimodipine Fat Emulsion by HPLC
10.6039/j.issn.1001-0408.2016.24.31
- VernacularTitle:HPLC法同时测定尼莫地平脂肪乳中溶血磷脂酰胆碱和溶血磷脂酰乙醇胺的含量
- Author:
Kaiyan FAN
;
Yiqiao XIE
;
Zihua XIA
;
Fan YANG
- Publication Type:Journal Article
- Keywords:
HPLC;
Nimodipine fat emulsion;
Lysophosphatidyl choline;
Lysophosphatidyl ethanolamine;
Content determination
- From:
China Pharmacy
2016;27(24):3413-3416
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To establish a method for simultaneous determination of lysophosphatidyl choline(LPC)and lysophos-phatidyl ethanolamine(LPE)in Nimodipine fat emulsion. METHODS:HPLC was performed on the column of Lichrosher Diol with detector of evaporative light scattering detector with mobile phase A of heptane- isopropyl alcohol solution(43∶57,V/V),mobile phase B n-heptane-isopropyl alcohol-water(29.5∶59∶11.5,V/V/V)(gradient elution)at a flow rate of 1.5 ml/min,column tempera-ture was 40℃,and the injection volume was 20 μl. RESULTS:The linear range was 0.020 0-0.400 0 mg/ml for LPC(r=0.999 0)and 0.010 0-0.200 0 mg/ml for LPE(r=0.999 6),and the logarithm value of concentration and peak area showed good linear relationship;the limit of quantitation was 0.013 4 mg/ml for LPC and 0.013 0 mg/ml for LPE;the limit of detection was 0.007 8 mg/ml for LPC and 0.007 6 mg/ml for LPE;RSDs of precision,stability and reproducibility tests were lower than 2%;recoveries were 95.96%-100.63%(RSD=1.83%,n=9)and 99.22%-101.76%(RSD=0.80%,n=9). CONCLUSIONS:The method is simple,and can be used for the determination of related substance in Nimodipine fat emulsion.
