日用化学品科学2026，Vol.49Issue(9)：42-48,7.DOI:10.3969/j.issn.1006-7264.2026.09.008
乳酸乙酯标准物质的研制与赋值
Development and certification of an ethyl lactate reference material
摘要
Abstract
Using high-purity ethyl lactate as the starting material,a candidate ethyl lactate reference material was developed and characterized.Its chemical structure was confirmed by gas chromatography-mass spectrometry(GC-MS),infrared spectroscopy(IR),and nuclear magnetic resonance(NMR)spectroscopy,and the results were compared with those of external reference materials.The chromatographic purity,water content,residue on ignition,and residual solvents were determined.The certified value was assigned using the mass balance method and further verified by quantitative nuclear magnetic resonance(qNMR)and the external standard method.The purity value assigned by the mass balance method was 99.48%.The results demonstrated that the candidate ethyl lactate reference material possesses high purity,excellent homogeneity,and good stability.It can be used for the quantitative determination and qualitative identification of ethyl lactate in cosmetic products,providing technical support and metrological traceability for the regulatory supervision of ethyl lactate in cosmetics in China.关键词
化妆品/乳酸乙酯/标准物质/液相色谱/核磁共振波谱Key words
cosmetics/ethyl lactate/reference material/liquid chromatography/nuclear magnetic resonance spectroscopy分类
化学化工引用本文复制引用
林思静,董亚蕾,乔亚森,黄传峰,王海燕..乳酸乙酯标准物质的研制与赋值[J].日用化学品科学,2026,49(9):42-48,7.基金项目
"十四五"国家科技支撑计划资助项目(2022FY10120203) （2022FY10120203）
