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determination of copper     
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  测定铜
     The linear ranges for the determination of copper, cobalt and nickel were 0~200 ng/mL, 0~200 ng/mL and 0~100 ng/mL, respectively. The detection limit was 2 ng/mL for copper, 2.5 ng/mL for cobalt and 1 ng/mL for nickel.
     测定铜、钴和镍的线性范围依次为0~200ng mL、0~200ng mL和0~100ng mL,检出限依次为2ng mL,2.5ng mL和1ng mL。
短句来源
     the linear range of determination of copper(Ⅱ)is 0~10μg/L. The detection limit is 0.3μg/L.
     测定铜(Ⅱ)的线性范围为0~10μg/L,检出量为0.3μg/L。
短句来源
     Spectrophotometric determination of copper with 2-(5-carboxy-1,3,4-triazolylazo)-5-diethylamino benzoic acid
     2-(5-羧基-1,3,4-三氮唑偶氮)-5-二乙氨基苯甲酸分光光度法测定铜
短句来源
     Spectraphotometric Determination of Copper in Copper Ores with 1-(2,6-dibromo-4-nitrophenyl)-3-(4-nitrophenyl)-Triazene
     1-(2,6-二溴-4-硝基苯)-3-(4-硝基苯)-三氮烯光度法测定铜
短句来源
     Determination of Copper with 5-Br-PADAP-OP Coloured System by Trioctylamine Extraction-Spectrophotometry
     正三辛胺萃取-5-Br-PADAP-OP显色体系光度法测定铜
短句来源
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  铜的测定
     While Fe, Fe, F, PO4, AsO4 and VO3, interfere with the determination of copper.
     、Fe~(...) 、F′、PO_4~′″、AsO_4~′″和VO_3′对铜的测定则有显著的干扰。
短句来源
     The absorption equation has been tested with KMnO_4 and Cu(NH_3)_4SO_4, and has been used for the determination of copper in brass.
     吸收方程式己用KMnO_4和Cn(NH_3)_4SO_4检验,并用于黄铜中铜的测定.
短句来源
     The results show that complex of Cu() was extracted by PEG phase from the water solution of pH8.5 ,the maxmum absorption of the complex is at 560nm and the molar absorptivity 3.05104Lmol-1cm-1.The proposed method was been applied to the determination of copper in aluminium alloy with satisfactory result.
     实验结果表明,在pH8.5缓冲溶液中,将Cu(Ⅱ)络合物从水溶液中萃取到PEG相,其最大吸收波长位于560nm,摩尔吸光系数为3.05×104L·mol-1·cm-1,此法用于铝合金中铜的测定,获得了满意结果
短句来源
     In the presence of cationic surfactant CTMAB,the complex shows an absorption maximum at 596 nm with an apparent molar absorptivity of 6.24×104 L·mol-1·cm-1 in the buffer solution with pH8.3.Beer's law is obeyed in the range of 0~ 20μg/25 mL. This method has been directly used for the determination of copper in aluminium alloy with satisfactory results.
     在阳离子表面活性剂CT-MAB存在下,于pH8.3的缓冲溶液中,试剂与铜形成红色配合物,其最大吸收波长位于596mm,摩尔吸光系数为6.24×10~4L·mol~(-1)·cm~(-1),铜的量在0~20ug/25mL范围内符合比尔定律,此法用于铝合金中微量铜的测定,结果满意。
短句来源
     on the oxidation of methyl blue by hydrogen peroxide in the medium of 0.1 mol/L H_2SO_4.The optimum conditions of the decoloring reaction were studied. The maximum absorption wavelength of this system is located at 560 nm. The linear range for the determination of copper is 0-0.08 mg/L,and the detection limit is 1.37×10~(-7) g/L.
     研究了在0.1 mol/L H2SO4介质中,痕量Cu(催化过氧化氢氧化甲基蓝褪色反应的动力学条件,建立了催化动力学光度法测定铜的新方法。体系的最大吸收波长为560 nm,Cu(线性范围为0~0.08 mg/L,方法检出限为1.3×10-7g/L,用于水中痕量铜的测定,结果满意。
短句来源
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  测定铜的
     Study on the determination of copper by spectrophotometry with 2-[3-(1-hydro-1,2,4-triazole)azo]-5-sulfomethylamino-benzoic acid
     2-[3-(1H-1,2,4三唑)偶氮]-5-磺甲氨基苯甲酸光度法测定铜的研究
短句来源
     Study on Spectrophotometric Determination of Copper(Ⅱ)with 2-(2-Quinolinylazo)-4-Methyl-1,3-Dihydroxidebenzene
     2-(2-喹啉偶氮)-4-甲基-1,3-苯二酚光度法测定铜的研究
短句来源
     Spectrophotometric determination of copper with 2,7-bi(5-carboxy-1,3,4-triazolylazo)-chromotropic acid
     2,7-双(5-羧基-1,3,4-三氮唑偶氮)-变色酸分光光度法测定铜的研究
短句来源
     The optimum conditions of the determination of copper is also investigated by experiments. A good linear relationship between the 1 # peak height and the concentration of copper in the range of 4.0×10 -8 mol·L -1 to 1.6×10 -6 mol·L -1 is obtained.
     实验研究了测定铜的最佳条件,并测得铜的浓度在4.0×10-8~1.6×10-6mol·L-1范围内,1#峰的峰高与浓度呈良好的线性关系,最低检测限为2×10-8mol·L-1。
短句来源
     Determination of Copper by Kinetic- spectrophotometry and its Analytion Application
     变色酸催化动力学光度法测定铜的研究与应用
短句来源
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  铜测定
     Objective To evaluate the uncertainty of determination of copper in water by flame atomic absorption spectrometry (FAAS) according to Evaluation and Expression of Uncertainty in Measurement.
     目的根据JJF1059-1999《测量不确定度评定与表示》的要求,对水中铜测定结果的不确定度进行评定。
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  determination of copper
Luminescence properties of some N-aryl-3-aminopropionic acids and their use for determination of copper(II) in drinking and wast
      
The procedure provides the determination of copper in the concentration range from 0.5 to 20 μg/L
      
Most of the metals did not interfere with the direct determination of copper.
      
Determination of copper, lead, and cadmium ions and the KF-91 flocculant in natural and waste waters by alternating-current stri
      
Determination of copper by its catalytic effect on the oxidation of hydroquinone by hydrogen peroxide on supports
      
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