发布时间:2024-05-27 17:49:26 - 更新时间:2024年06月29日 15:22
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本标准规定了利用气相分子吸收光谱法测定水中的亚硝酸盐氮
La méthode est applicable à toutes les eaux contenant entre 0,01 et 0, 2 5mg d'azo-te nitreux par litre ou ramenées à cette concentration par
Water analysis methods - Determination of the nitrite nitrogen - Photoraetric method
本标准规定了用分光光度法测定饮用水、地下水、地面水及废水中亚硝酸盐氮的方法。 测定上限 当试份取最大体积(50m1)时,用本方法可以测定亚硝酸盐氮浓度高达0.20mg/L。 最低检出浓度 采用光程长为10mm的比色皿,试份体积为50ml,以吸光度0.01单位所对应的
Water quality--Determination of nitrogen (nitrite)--Spectrophotometric method
The standard describes a method for determination of the sum of nitrite- and nitratenitrogen
Water analysis. Determination of the sum of nitrite- and nitrate-nitrogen
Denne standard kan anvendes til bestemmelse af oxideret ni-trogen (nitrat og nitrit) ved reduktion, destillation og titrering
Water quality. Nitrate- + nitrite-nitrogen. Reduction by Devardas alloy
本标准适用于地表水、地下水、海水、饮用水、生活污水及工业污水中亚硝酸盐氮的测定。使用213.9nm波长,方法的最低检出限为0.003mg/L,测定下限0.012mg/L,测定上限10mg/L;在波长279.5nm处,测定上限可达500mg/L
Water quality - Determination of nitrite-nitrogen Gas-phase molecular absorption spectrometry
Municipal sewage.Determination of nitrogen(nitrite).Sepectrophotometric method
Water quality-Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
本标准规定了戴氏合金还原-中和滴定法测定焦化污水中硝酸盐氮(NO3--N)、亚硝酸盐氮(NO2--N)的方法。 本标准适用于焦化污水中硝酸盐氮(NO3--N)、亚硝酸盐氮(NO2--N)的测定。测定范围(质量浓度):硝酸盐氮1.0 mg/L~150.0 mg/L,亚硝酸盐氮1.0 mg/L
水和废水监测分析方法
Specifies a method for the determination of nitrite(N), nitrate(N) or the sum of both [nitrite/nitrate(N)], in various types of waters (such as ground
Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
This International Standard specifies a method for the determination of nitrite(N) (see note 2), nitrate(N) or the sum of both [nitrite/nitrate(N
Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
Water Quality - Determination of Nitrite Nitrogen and Nitrate Nitrogen and the Sum of Both by Flow Analysis (CFA and FIA) and Spectrometric Detection
本标准规定了测定土壤中氨氮、亚硝酸盐氮、硝酸盐氮的氯化钾溶液提取-分光光度法。 本标准适用于土壤中氨氮、亚硝酸盐氮、硝酸盐氮的测定。 当样品量为40.0 g时,本方法测定土壤中氨氮、亚硝酸盐氮、硝酸盐氮的检出限分别为0.10 mg/kg、0.15 mg/kg、0.25 mg/kg,测定下限分别
Soil.Determination of ammonium, nitrite and nitrate by extraction with potassium chloride solution-spectrophotometric methods
本标准规定了利用气相分子吸收光谱法测定水中的亚硝酸盐氮
La méthode est applicable à toutes les eaux contenant entre 0,01 et 0, 2 5mg d'azo-te nitreux par litre ou ramenées à cette concentration par
Water analysis methods - Determination of the nitrite nitrogen - Photoraetric method
本标准规定了用分光光度法测定饮用水、地下水、地面水及废水中亚硝酸盐氮的方法。 测定上限 当试份取最大体积(50m1)时,用本方法可以测定亚硝酸盐氮浓度高达0.20mg/L。 最低检出浓度 采用光程长为10mm的比色皿,试份体积为50ml,以吸光度0.01单位所对应的
Water quality--Determination of nitrogen (nitrite)--Spectrophotometric method
The standard describes a method for determination of the sum of nitrite- and nitratenitrogen
Water analysis. Determination of the sum of nitrite- and nitrate-nitrogen
Denne standard kan anvendes til bestemmelse af oxideret ni-trogen (nitrat og nitrit) ved reduktion, destillation og titrering
Water quality. Nitrate- + nitrite-nitrogen. Reduction by Devardas alloy
本标准适用于地表水、地下水、海水、饮用水、生活污水及工业污水中亚硝酸盐氮的测定。使用213.9nm波长,方法的最低检出限为0.003mg/L,测定下限0.012mg/L,测定上限10mg/L;在波长279.5nm处,测定上限可达500mg/L
Water quality - Determination of nitrite-nitrogen Gas-phase molecular absorption spectrometry
Municipal sewage.Determination of nitrogen(nitrite).Sepectrophotometric method
Water quality-Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
本标准规定了戴氏合金还原-中和滴定法测定焦化污水中硝酸盐氮(NO3--N)、亚硝酸盐氮(NO2--N)的方法。 本标准适用于焦化污水中硝酸盐氮(NO3--N)、亚硝酸盐氮(NO2--N)的测定。测定范围(质量浓度):硝酸盐氮1.0 mg/L~150.0 mg/L,亚硝酸盐氮1.0 mg/L
水和废水监测分析方法
Specifies a method for the determination of nitrite(N), nitrate(N) or the sum of both [nitrite/nitrate(N)], in various types of waters (such as ground
Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
This International Standard specifies a method for the determination of nitrite(N) (see note 2), nitrate(N) or the sum of both [nitrite/nitrate(N
Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
Water Quality - Determination of Nitrite Nitrogen and Nitrate Nitrogen and the Sum of Both by Flow Analysis (CFA and FIA) and Spectrometric Detection
本标准规定了测定土壤中氨氮、亚硝酸盐氮、硝酸盐氮的氯化钾溶液提取-分光光度法。 本标准适用于土壤中氨氮、亚硝酸盐氮、硝酸盐氮的测定。 当样品量为40.0 g时,本方法测定土壤中氨氮、亚硝酸盐氮、硝酸盐氮的检出限分别为0.10 mg/kg、0.15 mg/kg、0.25 mg/kg,测定下限分别
Soil.Determination of ammonium, nitrite and nitrate by extraction with potassium chloride solution-spectrophotometric methods