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影响紫外法测定总氮的因素研究
引用本文:陈林枫.影响紫外法测定总氮的因素研究[J].干旱环境监测,2005,19(4):248-250.
作者姓名:陈林枫
作者单位:福建省福州市环境监测站,福建,福州,350011
摘    要:用紫外分光光度法测定水中总氮时由于受到试剂质量、消化温度、消化时间、环境等因素的影响,往往使空白吸光值偏高,标准曲线线性和结果重现性差,直接影响测定结果.本文通过对上述因素的研究,提出保证测定质量的条件,找到消除干扰的方法.

关 键 词:紫外分光光度法  总氮  干扰  消除
文章编号:1007-1504(2005)04-0248-03
收稿时间:2005-06-13
修稿时间:2005-06-13

Studies on Influence Factor of Determined Gross Nitrogen by Ultraviolet-Spectrophotometry
CHEN Lin-feng.Studies on Influence Factor of Determined Gross Nitrogen by Ultraviolet-Spectrophotometry[J].Arid Environmental Monitoring,2005,19(4):248-250.
Authors:CHEN Lin-feng
Institution:Fuzhou Environmental Monitoring Station, Fuzhou Fujian 350011, China
Abstract:Affected reagent quality, digestion temperature, digestion time and environment and so on factors, determining gross nitrogen in water by ultraviolet- spectrophotometry that generally increase blank value, recurrence of standard curve linearity and measurement result is no satisfactory. The paper studies influence factors, provides guaranteed condition of determination quality, finds method to clear interference.
Keywords:ultraviolet-spectrophotometry  gross nitrogen  interference  clear
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