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determination of cod
相关语句
  cod测定
     The method is appropriate especially to the determination of COD in wastewater whose the Cl~- concentration is more than 5,000mg/l.
     此法尤其适用于Cl~-含量大于5,000mg/l的废水COD测定
短句来源
     The molecular sieve - Bi2O3 is introduced as a catalyst instead of Ag2SO4 for standard determination of COD. Influence of dosage of catalyst, acidity of solution, digesting time and digesting temperature on determina-tion of COD is discussed.
     本文探讨了以分子筛组装Bi2O3代替标准重铬酸钾法中的Ag2SO4,用密封消解法测定废水COD值的可行性,研究了催化剂的用量、溶液的酸度、消解时间及温度等因素对COD测定的影响。
短句来源
     Comparing and surveying the determination of COD existing in chemical wastewater with high chloride ion
     高浓度氯离子化工废水中COD测定方法比较
短句来源
     Demarcation of Ammonium Ferrous Sulfate Solution on Determination of COD
     COD测定中对低浓度硫酸亚铁铵溶液标定的研究
短句来源
     The Influence of Nitrite on Determination of COD in Seawater and its Removal
     亚硝酸盐对海水COD测定的影响及消除方法的研究
短句来源
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  “determination of cod”译为未确定词的双语例句
     THE DETERMINATION OF COD USING Ag_2SO_4/CuSO_4 AS CATALYSTS IN SUBSTITUTE FOR Ag_2SO_4
     用Ag_2SO_4/CuSO_4代替Ag_2SO_4作催化剂测定COD
短句来源
     Study on Rapid Determination of COD by Using MnSO_4-Ce(SO_4)_2 as Catalyst
     用MnSO_4-Ce(SO_4)_2协同催化快速测定COD的研究
短句来源
     Fast Determination of COD with Ti/PbO_2 Electrode
     Ti/PbO_2电极在测定COD中的应用
短句来源
     Study on Rapid Determination of COD_(Cr) by Using MnSO_4-NiSO_4 as Catalyst
     用MnSO_4-NiSO_4取代Ag_2SO_4协同催化快速测定COD_(Cr)
短句来源
     Determination of COD_(Cr) by High-pressure Digestion Taking KAI (SO_4)_2 as Promoter
     利用KAl(SO_4)_2作助催化剂高压消化测定COD_(Cr)
短句来源
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  相似匹配句对
     Determination of COD by Spectrophotometry
     分光光度法测COD的应用研究
短句来源
     RAPID DETERMINATION OF COD WITH SPECTROPHOTOMETER
     分光光度法COD的快速测定
短句来源
     RAPID VOLUMETRIC DETERMINATION OF COD
     COD快速容量分析
短句来源
     THE EFFECT OF OILS ON THE DETERMINATION OF COD
     油类对COD测定结果影响的探讨
短句来源
     The environment monitors and the COD determination
     环境监测与COD测定
短句来源
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  determination of cod
The method was successfully applied to the determination of COD in wastewater samples.
      
After modification the FIA determination of COD equivalent values should be possible.
      
A modified procedure for the determination of COD in pure waters was proposed.
      
Samplesused for determination of COD were stored at -2OoC until analysed.
      


A Procedure for the experimental determination of COD resistance curves(R— curves)is presented in this paper.Sets of R—curves are derived by testing several kinds of intermediate and low strength steels,and comments are given herewith. Also,some assessment of the value in applying the method of altarnating current potential as a means of physical supervision during measurement is given in this paper.

本文介绍了 COD 阻力曲线的测定情况。通过对几种中低强度钢的实测,整理了几组阻力曲线,提出了一些看法.同时对交流电位法作为物理监测作出了一定的评价.

Methods use in the determination of COD in wastewater is reviewed, practical consideration of the dichromate method are discussed in detail. The recovery processes for silver and mercury from CODC, wastewater is also briefly described.

本文回顾了化学需氧量分析方法的发展过程,详述了重铬酸钾法在测定废水中COD方面取得的进展.并简述了从CODcr废液中回收银和汞的方法.

An automatic COD analyzer has been designed. A pump is used as, a driving force to control operation of the eletromagnatic valves in the. pipeline, by which volume control of wastewater samples and reagents, digestion, photometric measurement and cleaning in the process are carried out orderly. These procedures can be automatically repeated for continuous monitoring. This instrument is convenient for rapid determination of COD, 5-8 samples per hour can be analyzed. The results match with the ones...

An automatic COD analyzer has been designed. A pump is used as, a driving force to control operation of the eletromagnatic valves in the. pipeline, by which volume control of wastewater samples and reagents, digestion, photometric measurement and cleaning in the process are carried out orderly. These procedures can be automatically repeated for continuous monitoring. This instrument is convenient for rapid determination of COD, 5-8 samples per hour can be analyzed. The results match with the ones abtained by the standard methods, relative standard deviation is 1.9% for 10 samples determined.

本文研制了一种新型的COD自动分析仪,以抽气泵为动力,通过时间控制系统程序控制管路中各电磁阀,依次完成试剂和样品的定容、取样、消化、光度法测量和清洗等程序动作,周而复始地自动完成COD的测定全过程。本法快速,每小时可分析5—8个样品,方便和节省试剂等优点,用该仪器对模拟样品和实际样品进行了测定,数据与标准方法相吻合。该仪器精密度良好,连续10次测定的变异系数为1.9%。

 
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