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determination of cu
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  测定铜
     Sequential Determination of Cu and Zn with 3,5-diBr-PADAP and Peregal O
     3,5-diBr-PADAP-peregal O体系连续测定铜和锌
短句来源
     The simultaneous determination of Cu 2+ and Zn 2+ is performed by using the forth derivative spectrophotometry.
     用Mn2 + 减少试剂峰对Zn2 + 测定的影响 ,其四阶导数光谱能同时测定铜和锌。
短句来源
     A soft thresholding wavelet partial least squares (STWPLS) method was developed to perform simultaneous determination of Cu(Ⅱ), Cd(Ⅱ) and Zn(Ⅱ).
     建立了一种小波软阈值法 (STWPLS)同时测定铜 (Ⅱ )、镉 (Ⅱ )、锌 (Ⅱ )方法。
短句来源
     Simultaneous Determination of Cu,Cd and Ni by Spectrophotometry with Artificial Neural Network
     分光光度法结合人工神经网络同时测定铜、镉和镍
短句来源
     Simultaneous Determination of Cu, Zn, Co and Ni by Multiwavelength Spectrophotometry with Regressive-Orthogonal Design
     正交回归多波长光度法同时测定铜、锌、钴和镍
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  “determination of cu”译为未确定词的双语例句
     Simultaneous Determination of Cu~(2+)、Pb~(2+)、Hg~(2+) and Cd~(2+) by PCR-Spectrophotometry
     主成分回归法同时测定Cu~(2+)、Pb~(2+)、Hg~(2+)和Cd~(2+)
短句来源
     Simultaneous Determination of Cu, Pb, Zn, Mn and Cd in Surface Water by IRIS/AP-ICP-AES
     IRIS/AP-ICP-AES法同时测定地表水中的Cu、Pb、Zn、Mn和Cd
短句来源
     Spectrophotometric Determination of Cu(Ⅱ) in Anolyte ofElectrolytic Nickel by EDTPO
     Spectrophotometric Determination of Cu(Ⅱ) in Anolyte of Electrolytic Nickel by EDTPO
短句来源
     Determination of Cu, Pb,Zn,As,Sb and Cdin Artemether by ICP-AES
     ICP-AES法测定蒿甲醚中Cu、Pb、Zn、As、Sb和Cd
短句来源
     Determination of Cu,Zn,Fe,Mn and Ca in Human Hair by ICP AES
     ICP-AES法测定人发中Cu、Zn、Fe、Mn和Ca
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  相似匹配句对
     (4) Determination of Cu.
     (4)血清Cu.
短句来源
     (1) The determination of Cu.
     (1)本文提出了高爐配件(如风口,冷却水箱等)所用某些铜合金中Cu.
短句来源
     Method:Determination of Pb? As? Cu?
     方法 :用 ICP- MS对食品中 Pb、 As、 Cu、 Zn、Cd、 Cr、 Se、 Ni、 Mn、 Fe等 10种金属元素进行同时测定。
短句来源
     Cu?
     用原子吸收分光光度计测定各组小鼠血清的 Zn、Cu、Fe。
短句来源
     Cu
     Cu;
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  determination of cu
The effects of Na, Cl, Ca, Fe, Zn, and Pb, whose concentrations in hairs vary within a wide concentration range, on the results of the determination of Cu, Cd, K, Fe, Zn, and Pb were examined.
      
Test Determination of Cu(II), Ni(II), and Cr(VI) in a Single Sample
      
A mercury-free modified screen-printed electrode was proposed for the preconcentration and determination of Cu(II), Pb(II), Cd(II), and Zn(II).
      
Procedures were developed for the determination of Cu(II) by its activating effect in the concentration range 0.05-4.0 mM and of oxalate ions by their inhibiting effect in the concentration range 0.5-20 mM.
      
The competition coordination between Cu and the Al-PCA complex was applied to the selective determination of Cu (CCSD) by the spectral correction technique.
      
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(1) The determination of Cu. Sn Pb. Zn and Ni in copper alloys for blast furnance accessories, such as inlet hole of bustle pipe and cooling chambers, were studied. (2) For the determination of small quantities of Zn and Ni, polarographic method was found to be more suitable. A visual polarographic apparatus had been set up from home made instruments, with a cost about 1/3 only of the price of an ordinary imported polarograph. Using NH_3~(NH_4)_2 SO_4 instead of NH_3~NH_4Cl as supporting electrolyte...

(1) The determination of Cu. Sn Pb. Zn and Ni in copper alloys for blast furnance accessories, such as inlet hole of bustle pipe and cooling chambers, were studied. (2) For the determination of small quantities of Zn and Ni, polarographic method was found to be more suitable. A visual polarographic apparatus had been set up from home made instruments, with a cost about 1/3 only of the price of an ordinary imported polarograph. Using NH_3~(NH_4)_2 SO_4 instead of NH_3~NH_4Cl as supporting electrolyte was found to be more economical because of lower consumption of reagent. It was also found that the composition of the polarographic medium could be varied in a considerably wide range without appreciable influence on the accuracy of the result. The adop tation, therefore, of this method in routines analysis in steel plant was recommended. (3) The proposed polarographic medium in the above mentionel method was 1 N NH_4OH, 0.03% agar-agar, 1.2 g. (NH_4)_2SO_4 and 4 ml. saturated Na_2 SO_3 in 50 ml. of the polarographic solution. (4) The procedures used in Tai-yuan Steel Plant for the determination of Sn, pb. and Cu were tested in order to find an optimium range of acidity of electrolysis, which could be readily controlled.

(1)本文提出了高爐配件(如风口,冷却水箱等)所用某些铜合金中Cu.Sn.Pb.Zn.Ni.的测定方法。 (2)该合金中少量Zn和Ni的测定,以使用极谱法为宜。 (3)为了降低极谱设备的费用,作者证明可以采用价格仅及极谱仅三分之一的国产设备装配的视式极谱装置来进行Zn和Ni的测定。 (4)为了降低试藥费用,作者根据条件试验证明:可以用NH_3~(NH_4)_2SO_4代替NH_3~NH_4Cl作为支持电解质。 (5)采用上述兩項措施后,不但节約,而且較用极譜仪和NH_3~NH_4Cl支持电解質为快速。作者并根据测得数据,断定本法有滿意的再現性。同时証明:基底液中各种物質的濃度,可以在相当大的范围內改变,而不致影响测定結果。故本法可試用于鋼鉄厂的日常分析工作。 (6)极譜基底液成份是1N NH_4OH,0.03%琼脂和1.2克(NH_4)_2SO_4/50ml.4毫升飽和Na_2SO_3溶液/50毫升。但实际操作中极譜基底液的成分无須十分准确,各种成分的濃度,只要在本文所述的范圍內即可。 (7)作者以为太原鋼鉄厂原来使用的操作規程中,测定該銅合金中Cu.Pb.Sn的方法有其优点,并在电解介質的成分方面,作了些补...

(1)本文提出了高爐配件(如风口,冷却水箱等)所用某些铜合金中Cu.Sn.Pb.Zn.Ni.的测定方法。 (2)该合金中少量Zn和Ni的测定,以使用极谱法为宜。 (3)为了降低极谱设备的费用,作者证明可以采用价格仅及极谱仅三分之一的国产设备装配的视式极谱装置来进行Zn和Ni的测定。 (4)为了降低试藥费用,作者根据条件试验证明:可以用NH_3~(NH_4)_2SO_4代替NH_3~NH_4Cl作为支持电解质。 (5)采用上述兩項措施后,不但节約,而且較用极譜仪和NH_3~NH_4Cl支持电解質为快速。作者并根据测得数据,断定本法有滿意的再現性。同时証明:基底液中各种物質的濃度,可以在相当大的范围內改变,而不致影响测定結果。故本法可試用于鋼鉄厂的日常分析工作。 (6)极譜基底液成份是1N NH_4OH,0.03%琼脂和1.2克(NH_4)_2SO_4/50ml.4毫升飽和Na_2SO_3溶液/50毫升。但实际操作中极譜基底液的成分无須十分准确,各种成分的濃度,只要在本文所述的范圍內即可。 (7)作者以为太原鋼鉄厂原来使用的操作規程中,测定該銅合金中Cu.Pb.Sn的方法有其优点,并在电解介質的成分方面,作了些补充試驗,使操作条件更为明确。

The optical absorptio-behavior of Eriochrome Black T(EBT)and some of its metal complexes in NH_3 and in K_2CO_3 buffer solutions at various pH with the presence of various amount of methanol is studied.Based on this,some modifications upon the usual colorimetric methods in determining Mg~(++) and Zn~(++) with EBT are proposed.The main procedure is to measure the extinction differences between the reagent blank solution and the test solutions at 665mμ,and in these solutions,a largeamount of methanol and a pH=11K_2CO_3...

The optical absorptio-behavior of Eriochrome Black T(EBT)and some of its metal complexes in NH_3 and in K_2CO_3 buffer solutions at various pH with the presence of various amount of methanol is studied.Based on this,some modifications upon the usual colorimetric methods in determining Mg~(++) and Zn~(++) with EBT are proposed.The main procedure is to measure the extinction differences between the reagent blank solution and the test solutions at 665mμ,and in these solutions,a largeamount of methanol and a pH=11K_2CO_3 buffer are used.This modified method can also be applied in the determination of Cu~(++) or Cd~(++).The sensitivities of determination of these ions are 0.02γ/ml Mg~(++),0.04γ/ml Cu~(++),0.025γ/ml Zn~(++) and 0.05γ/ml Cd~(++) respectively.

本文探討了埃鉻黑T(EBT)及其一些金属络合物在NH_3以及在K_2CO_3緩冲溶液中,当不同量甲醇存在时的光吸收行为。据此,对一般用EBT比色测定M_g~(++)及Zn~(++)的方法提出改进。其主要操作为测量在pH=11K_2CO_3緩冲液中及含大量甲醇时的試剂空白溶液与被测离子溶液在665mμ处的清光差。此法尚可用以测定Cu~(++)或Cd~(++)。此法对这些离子的测定灵敏度分別为0.02γ/ml Mg,0.025γ/ml Zn,0.04γ/ml Cu及0.05γ/ml Cd。

Rapid polaropraphy with the mercury film electrode was applied to the simultaneous determination of Cu2+, Pb2+, Cd2+ and Zn2+ in water. When these ions were electrolyzed in 0.15M NH4Gl medium for 10 min. at -1.3V (VS. Ag- Hg electrode), the metals were elcctrodeposited on a mercury film electrode, and an anodic dissolution curve was recorded by an X-Y functional recorder from -1.3V to -0.1V. The peak heights were linear with concentrations within the range or 10-6M-10-8M for Cu, Pb, Zn and of 10-6M-10-9M...

Rapid polaropraphy with the mercury film electrode was applied to the simultaneous determination of Cu2+, Pb2+, Cd2+ and Zn2+ in water. When these ions were electrolyzed in 0.15M NH4Gl medium for 10 min. at -1.3V (VS. Ag- Hg electrode), the metals were elcctrodeposited on a mercury film electrode, and an anodic dissolution curve was recorded by an X-Y functional recorder from -1.3V to -0.1V. The peak heights were linear with concentrations within the range or 10-6M-10-8M for Cu, Pb, Zn and of 10-6M-10-9M for Cd. This method is suitable for the determination of trace amounts of these elements in water.

快速极谱仪与汞膜电极联用,阳极溶出伏安法同时测定水中铜、铅、镉、锌。在O.15MV氯化铵介质中,调节pH至5.5,于一1.3伏电解10分钟(对Ag-Hg电极),这些金属便电沉积在汞膜电极上,并用记录仪于-1.3伏~-0.1伏记录阳极溶出曲线。10~(-6)M~10~(-8)M的铜、铅、锌和10~(-6)M~10~(-9)M的镉,其浓度与峰高呈线性关系。此法适用于测定水质中的这些痕量元素。

 
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