摘要
建立了固相萃取净化-离子排斥色谱法分离和测定甜菜碱中羟基乙酸(盐)、一氯乙酸(盐)、二氯乙酸(盐)的方法。结果表明:该方法的分离效果好,一氯乙酸、二氯乙酸、羟基乙酸的检出限分别为5.0μg/g,1.0μg/g和5.0μg/g。各有机酸的线性相关系数均达到0.999,回收率为96.4%～99.2%。
Solid phase extraction purification -ion exclusion chromatography method for separation and determination of glycolic acid （GL, and its salt ）, monoehloroacetie acid （MCA, and its salt ） and dichloroacetic acid （DCA,and its salt） in betaine samples was established. Experimental results showed that separation was good and the detection limits of MCA, DCA and GL were identified as 5.0μg/g, 1.0μg/g and 5.0 μg/g respectively. The linearity correlation coefficient of all samples achieves 0. 999. Recovery achieves 96. 4%-99. 2%.
出处
《日用化学工业》
CAS
CSCD
北大核心
2010年第6期465-467,共3页
China Surfactant Detergent & Cosmetics
关键词
甜菜碱
固相萃取
离子排斥色谱法
一氯乙酸
二氯乙酸
羟基乙酸
betaine
solid phase extraction
ion - exclusion chromatography
monochloroacetic acid
dichloroacetic acid
glycolic acid
