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| Determination of 7 kinds of fatty acids in egg yolk lecithin(for injection) by GC with external standard method |
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| DOI： |
| KeyWord:egg yolk lecithin(for injection) fatty acid gas chromatography external standard method |
| FundProject:广州市科技计划项目产学研协同创新专题项目（201802030002） |
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| Abstract: |
| The method for the determination of palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, arachidonic acid and docosahexaenoic acid in egg yolk lecithin (for injection) was established.The samples were methylated by direct water bath heating in stoppered tubes,extracted by shaking with n-heptane at room temperature and analyzed by gas chromatography with initial column temperature 210 ℃,then the contents of 7 kinds of fatty acids were calculated by external standard method.The specificity, precision, accuracy and durability of the method were in line with the requirements, and in a range of mass concentrations,there was a linear relationship between the mass concentration of 7 kinds of fatty acid methyl esters and peak areas with all correlation coefficients greater than 0.999.So the method was suitable for the determination of 7 kinds of fatty acids in egg yolk lecithin (for injection). |
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