气质联用分析加硫酸化污泥中的有机酸  

Determination of organic acids in sulfur-acidified sludge with GC-MS

作　　者：汪靓[1] 朱南文[1] 廖黎燕[1] 

机构地区：[1]上海交通大学环境科学与工程学院,上海200240

出　　处：《环境污染与防治》2006年第7期557-558,共2页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.20477027)。

摘　　要：分别采用两种前处理方法分离富集加硫酸化污泥中的有机酸。方法一,利用阴离子交换树脂分离富集有机酸,在不洗脱的情况下直接和乙醇进行酯化反应,然后进行气质联用分析;方法二,利用活性炭纤维吸附型固相微萃取(ACFSPME)的方法,顶空萃取分离后进行气质联用分析。两种方法的分析结果都未检测到酸化污泥中存在短链的有机酸,只检测到个别长链的和带苯环结构的有机酸。Two rapid and simple GC-MS methods have been developed for determining organic acids in sulfur-acidified sludge, Method Ⅰ ：Acids are extracted and enriched on an anion exchange resin and then esterified with ethanol. The esters are analyzed with GC-MS. Method Ⅱ ： The volatile organic acids were extracted by headspace solid phase microextraction （HS-SPME） and then determined by gas chromatography mass spectrometry （GC-MS）. The results of the two methods both showed that short carbon chain acids were not found while several benzene ring containing and long chain organic acids are found.

关 键 词：气相色谱 质谱法 有机酸 硫酸化污泥 

分 类 号：X703[环境科学与工程—环境工程]