摘要
在我国现有的《生活饮用水水源水质标准》(CJ3020-93)标准中并未对嗅味做定性和定量的规定。嗅味层次分析方法能够对水样中的嗅味种类以及嗅味强度做出定性和定量化的判断,通过嗅味层次分析方法以及SPME-GC/MS化学分析的结果,给出了饮用水嗅味的推荐值。按不同水源地类型对二甲基异莰醇(2-MIB)的标准进行了研究,综合考虑感官分析和化学分析结果,水厂可处理程度以及消费者可接受情况,给出2-MIB标准的推荐值,一级、二级水源地的标准推荐值为10 ng/L,三级水源地的标准推荐值为50 ng/L。二甲基异莰醇(2-MIB)嗅味标准推荐值的给出在一定程度上对水源地的划分又提供了一个参考依据,开辟了水质感官分析的新思路,为我国城市水源中2-MIB含量的划分提供了参考。
In the current ＂ Quality standards for drinking water＂（ CJ3020-93） qualitative and quantitative regulations on the smell of water were not established in our country. Flavor profile analysis can determine the type and magnitude of odor in the water samples qualitatively and quantitatively. Based on the flavor profile analysis method and SPME-GC/MS chemical analysis,a recommended value of the drinking water smell was given. The recommended value of 2-methylisoborneol（ 2-MIB） standards were obtained by investigating the 2-MIB standards in the diverse type of water sources,while the organoleptic and chemical analyses were considered with the situations of water treatment and the acceptance of consumers. The recommended values for both the first and second levels of water sources were both 10ng/L and for the third level was 50ng/L. The recommended value of the 2-MIB smell standard provides a reference to divide by the water sources to some extent. Furthermore,this organoleptic analysis of the water quality can also recommond value and provide some profitable suggestions to the amount of 2-MIB in other city’s water sources of our country.
出处
《水资源与水工程学报》
CSCD
2017年第2期47-51,共5页
Journal of Water Resources and Water Engineering
基金
国家自然科学基金项目(51279108)
上海大学生创新创业训练计划项目(SH2016103)
上海市科委基础研究重大项目(13DJ1400105)
关键词
嗅味层次分析法
感官特征
嗅阈值
分布规律
嗅味标准
flavor profile analysis
sensory characteristics
odor threshold
distribution laws
odor standard
