论文部分内容阅读
GB法测定饮用水中硝酸盐以二碳酸酚分光光度法为首选方法。测定硝酸盐时，需对标准液及样品做蒸发处理后才能与显色剂作用，且显色剂的配制要在沸水浴中煮沸肽之久，所以试剂配制与操作均繁杂。且由于NOI及CI‘的干扰，增加了前处理过程。本文建立了一种操作简便、灵敏度高、选
GB Determination of nitrate in drinking water with dicarbonate phenol spectrophotometry as the preferred method. Determination of nitrate, the standard solution and the sample to be evaporated to deal with the role of the developer, and the preparation of the developer to boiling the peptide in a boiling water bath for a long time, so reagent preparation and operation are complicated. And due to NOI and CI ’interference, an increase of pre-treatment process. This article established a simple, high sensitivity, selection