离子色谱法测定污泥与餐厨垃圾联合厌氧发酵液中有机酸  

Determination of Organic Acids in Fermentation Broth of Anerobic Fermentation using Combined Sludge and Food Waste by Ion Chromatography

作　　者：罗鸿信[1] 刘惠 郑育毅[1] 刘常青[3] 刘文伟[1] 

机构地区：[1]福建师范大学环境科学研究所,福建福州350007 [2]赛默飞世尔科技(中国)有限公司,上海200120 [3]福建师范大学地理科学学院,福建福州350007

出　　处：《环境监测管理与技术》2014年第4期39-41,53,共4页The Administration and Technique of Environmental Monitoring

基　　金：福建省科技厅重点基金资助项目(2011Y0018);福建省科学基金资助项目(2013J01035);福建省教育厅B类科研基金资助项目(JB12045;JB13029)

摘　　要：采用离子色谱法同时测定污泥与餐厨垃圾联合厌氧发酵液中乳酸、乙酸、丙酸、正丁酸、异丁酸、正戊酸、异戊酸等7种有机酸,通过试验优化洗脱程序,使得7种有机酸在2.00 mg/L一60.0 mg/I范围内线性良好。试验表明,方法检出限为0.250 mg/L^0.580 mg/L,标准样品的加标回收率为93.0%~108%,8次测定结果的RSD为3.7%~7.1%,实际样品测定的加标回收率为90.6%~109%。Ion chromatography was applied to the simultaneous determination of seven organic acids in fer- mentation broth of anerobic fermentation using combined sludge and food waste, including lactic acid, acetic acid, propanoic acid,n-butanoic acid, iso-butanoic acid, n-pentanoic acid and iso-pentanoic acid. An optimal elution program was established through experiment. Linear relationships of the seven kinds of organic aicds were good in the range of 2.00 mg/L - 60.0 mg/L. The experiment showed that the detection limits were in the range of 0. 250 mg/L- 0. 580 mg/L, and the relative standard derivations of the eight determination results were 3.7% ~ 7.1% , and the recoveries of standard organic acids and fermentation broth samples were in the ranges of 93.0% ~ 108% and 90.6% - 109% , respectively.

关 键 词：有机酸 离子色谱法 发酵液 污泥 餐厨垃圾 

分 类 号：O657.75[理学—分析化学]