【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.更多还原

【Abstract】 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.更多还原