大骨节病区饮用水中小分子有机化合物的分离及自由基的测定  

IDENTIFICATION OF FREE RADICALS AND SOME ORGANIC COMPOUNDS IN THE DRINKING WATER FROM KASHIN-BECK DISEASE REGION OF FENGNING COUNTY

作　　者：王强[1] 龙耀庭[2] 陆妙琴[2] 王子健[2] 何润根[3] 王大辉[3] 

机构地区：[1]华中理工大学化学系 [2]中国科学院生态环境研究中心 [3]中国科学院生物物理研究所

出　　处：《环境化学》1989年第2期44-48,共5页Environmental Chemistry

摘　　要：用GDX-102树脂将水样中腐植酸与低分子量有机物分离并富集,对病区及非病区饮用水进行自由基ESR信号对比测定.结果表明,两种饮用水在ESR表征上有明显差异,病区水含有较高浓度的自由基.GC-MS分析鉴定的结果表明,病区饮用水中有机物浓度比非病区的高,并含有较多的可产生超氧阴离子自由基的化合物2,6-二特丁基-1,4-苯醌.对自由基的可有致病机制进行了探讨.Organic compounds with low molecular weight and humic acid in water sample were separated and concentrated by using resin GDX-102. ESR determination was conducted for the free radicals in water samples taken from disease region and non-disease region, respectively. Remarkable difference of ESR characteristics was found between the two water samples. GC-MS analysis revealed that water from disease region contains higher concentration of organic compounds, such as 2,6-di-t-butyl-1,4-benzoquinone, which can yield radical O2-. The possible pathogenic mechanism of these free radicals is discussed briefly.

关 键 词：大骨节病区 水 有机物 自由基 

分 类 号：X132[环境科学与工程—环境科学]