摘要
建立了铝酸钠溶液中有机酸的高效液相色谱测定方法。铝酸钠溶液样品经简单处理后,在Kromasil C18色谱柱上,以KH2PO4-H3PO4-甲醇-水为多元流动相,等度洗脱,在10 min内可完成草酸、酒石酸、乙酸、丁二酸、丁烯二酸和戊二酸等有机酸的分离测定。方法线性关系良好（r=0.9952-0.9999）,样品加标回收率在80.2%-127.6%之间,相对标准偏差均在6.9%以下。
A method for the determination of organic acids in sodium aluminate solution by high performance liquid chromatography was developed. The mobile phase consisted of monopotassium phosphate-phosphoric acid-methanol-water. In 10 min, the separation and determination of organic acids （oxalic acid, tartaric acid, acetic acid, suecinic acid, butene diaeid and glutaric acid） were achieved on kromasil C18 chromatographic column by isocratic elution. The calibration graphs of peak areas for all the analytes are linear over a wide range （ r =0.9952-0.9999）. The recoveries of the added standards are between 80.2% and 127.6%, and the relative standard deviations are less than 6.9%.
出处
《分析试验室》
CAS
CSCD
北大核心
2008年第11期14-17,共4页
Chinese Journal of Analysis Laboratory
基金
国家重点基础研究计划("973"项目)(2005CB623702)项目资助
关键词
铝酸钠溶液
有机酸
高效液相色谱法
Sodium aluminate solution
Organic acid
High performance liquid chromatography
