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篇名: | 复方亚麻酸软胶囊中大豆卵磷脂和γ-亚麻酸含量测定的方法学 |
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摘要: | 目的:建立测定复方亚麻酸软胶囊中大豆卵磷脂和γ-亚麻酸含量的方法。方法:采用高效液相色谱法测定制剂中大豆卵 磷脂的含量:色谱柱为Agilent TC-C18,流动相为甲醇-水(84 ∶16,V/V),流速为1.0 ml/min,检测波长为219 nm,柱温为30 ℃,进样量 为10 μl;采用气相色谱法测定制剂中γ-亚麻酸的含量:色谱柱为DBWAX柱,进样口温度为210 ℃,程序升温,载气为氦气,流速为 1 ml/min,分流比为1 ∶30,进样量为0.02 μl。结果:L-α-卵磷脂和γ-亚麻酸甲酯检测质量浓度线性范围分别为4.64~16.24 μg/ml、 0.093 44~0.327 04 μg/ml(r=0.999 9、0.999 8);精密度、稳定性、重复性试验的RSD<3%;加样回收率分别为96.79%~99.36% (RSD=0.93%,n=6)、96.63%~99.07%(RSD=1.01%,n=6)。结论:该两种方法操作简便、稳定、重复性好,可用于复方亚麻酸 软胶囊中大豆卵磷脂和γ-亚麻酸含量的测定。 |
ABSTRACT: | OBJECTIVE:To establish a method for the contents determination of phospholipid and γ-linolenic acid in Compound linolenic acid soft capsule. METHODS:HPLC was conducted to determine the content of soybean lecithin;the column was Agilent TC-C18 with mobile phase of methanol-water(84 ∶16,V/V)at a flow rate of 1.0 ml/min,the detection wavelength was 219 nm,the column temperature was 30 ℃,and the injection volume was 10 μl.Gas chromatography was conducted to determine the content of γ-linolenic acid in the preparation;the column was DB WAX,injector temperature was 210 ℃ by temperature programmed, carrier gas was helium at a flow rate of 1 ml/min by split injection(split ratio of 1 ∶30),and the injection volume was 0.02 μl. RESULTS:The linear range was 4.64-16.24 μg/ml for phospholipid(r=0.999 6)and 0.093 44-0.327 04 μg/ml for γ-linolenic acid methy ester(r=0.999 6);RSDs of precision,stability and reproducibility tests were lower than 3% ;recoveries were 97.44%-99.36%(RSD=0.93%,n=6)and 97.22%-99.07%(RSD=1.01%,n=6),respectively. CONCLUSIONS:The method is simple,stable with good separation,and can be use for the contents determination of phospholipid and γ-linolenic acid in Compound linolenic acid soft capsule. |
期刊: | 2016年第27卷第3期 |
作者: | 隋国奇,蔡广知,李连坤,贡济宇 |
AUTHORS: | SUI Guoqi,CAI Guangzhi,LI Liankun,GONG Jiyu |
关键字: | 复方亚麻酸软胶囊;气相色谱法;高效液相色谱法;大豆卵磷脂;γ-亚麻酸 |
KEYWORDS: | Compound linolenic acid soft capsule;Gas chromatography;HPLC;Phospholipid;γ-linolenic acid |
阅读数: | 398 次 |
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