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- Trace copper in powdered drinks is determined by the EDTA titrimetry. 采用EDTA减量滴定法测定固体饮料中的微量铜。
- Study on the Solvent Floatation Photometric Method for Determination of Trace Copper. 溶剂浮选光度法测定痕量铜。
- At present,the amount of trace copper is determined by absorbency following the reaction of BCO with Cu~(2+). 现行的铁矿石中微量铜的测定方法;是用双环己酮草酰双腙(BCO)与Cu2+反应显色;然后进行吸光度测定.
- A BCO spectrophotometric method has been applied to determination of trace copper in aluminium power. 介绍了用BCO分光光度法对铝粉中微量铜的测定。
- Suspension Sampling technique had been used to FAAS for determining trace copper in tea. 将悬浮液进样技术应用于火焰原子吸收光谱法，成功地测定了茶叶中的微量铜。
- BCO spectrophotometric method has been applied to determination of trace copper in aluminium power. 介绍了用BCO分光光度法对铝粉中微量铜的测定。
- A new catalytic fluorimetric method has been established for determination of trace copper. 建立了催化荧光法测定痕量铜的新方法。
- A method for the continuous determination of trace copper and lead in ABS resin by 2.5s differential circuit of anodic stripping volammetry was introduced in this paper. 本文介绍一种采用2.;5次微分阳极溶出伏安法同时连续测定ABS树脂中痕迹量铜和铅的方法。
- A new method for the determination of trace copper in water by flame atomic absorption spectrometry with cloud point extraction was developed. 摘要本文研究了浊点萃取－火焰原子吸收光谱法测定微量铜。
- This paper has researched extraction and enrichment of Cu2+ through APDC+DDTC-MIBK at acidic condition and the determination of trace copper in carbonated beverage by GFAAS. 研究在酸性条件下用吡咯烷二硫代甲酸铵和二乙氨基二硫代甲酸钠及甲基异丁酮(APDC+DDTC-MIBK)体系萃取富集碳酸饮料消化液中铜离子,再用石墨炉原子吸收法测定铜离子含量的检测方法。
- This paper talks about the various spectrophotometric methods in the determinationof trace copper in terms of sensitivity, selsctivity, appplication, ect.. 本文从灵敏度、选择性及应用等方面对微量铜的各种分光光度测定方法进行了评述。
- Study on the determination of trace copper in rice by conventional FAAS with slotted quartz tube has been described here.An air-acetylene flame (lean) has been used. 本文根据文献报道使用单缝石英管火焰原子吸收法提高火焰原子法的灵敏度,对大米中微量铜的测定进行研究。
- The resin has successfully been applied to AAS determination of the trace copper in water and pure salts of ZnSO4 and CdCl2 after seperation and preconcentration with the column containing the resin. 建立了用该负载树脂经柱法分离富集后原子吸收测定自来水中及ZuSO_4、CdCl_2等盐类中微量铜的分析方法.
- A method for the determination of trace copper and iron in gasoline by microwave plasma torch-atomic emission spectrometry(MPT-AES) with microwave digestion for sample pretreatment was developed. 采用微波消解方法处理汽油样品,用微波等离子体炬原子发射光谱法(MPT-AES)测定消解液中的铜和铁含量。
- The chemical symbol for copper is "Cu". 铜的化学符号是Cu。
- What color is copper sulphate solution? 硫酸铜溶液是什么颜色？
- I can't trace that letter you sent me. 我找不到你寄给我的那封信。
- He spoke without a trace of emotion. 他说话时毫不动感情。
- Copper and gold are both metals. 铜和金都是金属。
- Did the police find any trace of the murderer? 警方找到凶手的行踪了吗？
