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standard steel samples
相关语句
  标准钢样
     In the determinations of three standard steel samples, the maximum relative standard deviation is 5.8%.
     对三种标准钢样测定的结果,最大相对标准偏差为5.8%,回收率在94~107%之间。
短句来源
     The method has been used for the determination o'f trace Cu(Ⅱ) in the steel. The relative error is less than 4% for the deter" mination o'f three standard steel samples.
     对三种标准钢样测定,相对误差在4%以下.
短句来源
     Satisfactory results can be obtained for standard steel samples and synthetic samples by using of this method.
     该法用于标准钢样和合成试样的分析,获得较为满意的结果.
短句来源
  “standard steel samples”译为未确定词的双语例句
     The result s of hydrogen determination using Japen Jss-GSIC standard steel sam-ple, Chinese standard steel samples and Nb,Ta,Ti standard samples are satisfacto-ry.
     测定了日本JSS-GSIC标钢、国产标钢及铌、钽、钛标样,获得了满意的结果。
短句来源
     By means of this apparatus,trace analysis of Au in minerals and Cu in standard steel samples were carried out. The detection limit of them is 40ng/g and μg/g level,respectively.
     利用该谱仪探测了地矿样品中的金和钢标样中的铜,其检出限分别达40ng/g和μg/g量级。
短句来源
     The method was applied to niobium determination in standard steel samples and niobium ore samples.
     该方法已应用于钢样及铌矿样中铌的测定。
短句来源
  相似匹配句对
     Which is the standard?
     采用什么标准评价?
短句来源
     Standard
     标准
短句来源
     -steel,s.
     -钢,Ti-S.
短句来源
     Overview of the Steel Product Basic Standard
     钢产品基础标准综述
短句来源
     Chemical Standard Samples of Iron and Steel
     钢铁化学标准样品
短句来源
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  standard steel samples
Laser-induced fluorescence in laser-ablated standard steel samples was measured, in order to study the atomization and propagation properties of the plasma plume and the analytical figures of merit of the method.
      
The analytical figures of merit of optical emission spectrometry (OES) of laser-produced sample plasmas were determined using, as examples, measurements of two analytes (silicon and chromium) in homogeneous and low-alloyed standard steel samples.
      
Iron is also separated from associated elements and the results of the analysis of synthetic mixtures and standard steel samples are reported.
      
The method has been tested on standard nickel solutions and standard steel samples.
      
The method has been successfully applied to the determination of manganese in standard steel samples, natural water samples and plant material.
      
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A derivative spectrophotometric method is described for the determination of phosphorus in steel, using phosphovanadomolybdate blue-rhodamine B-galatin-OP system. In the determinations of three standard steel samples, the maximum relative standard deviation is 5.8%.

本文采用磷钒钼蓝—罗丹明B—明胶—OP体系以一阶导数分光光度法测定了碳素工具钢和低合金钢中的磷。对三种标准钢样测定的结果,最大相对标准偏差为5.8%,回收率在94~107%之间。

Determination of microamount copper by fluorescence quenching method has been investigated based on complex formation of Cu (Ⅱ) with meso-tetra (p-sulfophenyl) orphyrin.In the presence of CTMAB and Triton X-100 the sensitivity of the method proposed is 0.005μg/ml. When NaF is used as a masking agent, 1 mg of Fe (Ⅲ) does not interfere with the determination of Cu (Ⅱ). The contents of Cu in the powdered iron, iron oxide and standard steel samples are determined with satisfactory results.

根据Cu(Ⅱ)与α,β,Υ,δ—四(对磺基苯)卟啉生成配合物使试剂荧光熄灭的原理测定了微量铜。在CTMAB和TritonX—100存在下,方法灵敏度为0.005μg/ml。测定了铁粉、氧化铁及一些标准钢样中铜的含量。

A method for determination of titanium and vanadium coexisting together by spectrophotometry without separation has been studied. When TiO~(2+)-5-Br-PADAP-H_2O_2 and VO_2~+-5-Br-PADAP-H_2O_2 colouring trinary complexes are formed, the difference of maximum absorption wave lengths of colouting complexes is increased from 3 nm beteewn two binary systems (TiO~(2+)-5-Br-PADAP and VO_2~+-5-Br-PADAP) to 55 nm between two trinary systems. By use of slowly forming VO_2~+ trinary complex when H_2O_2 is formerly added,...

A method for determination of titanium and vanadium coexisting together by spectrophotometry without separation has been studied. When TiO~(2+)-5-Br-PADAP-H_2O_2 and VO_2~+-5-Br-PADAP-H_2O_2 colouring trinary complexes are formed, the difference of maximum absorption wave lengths of colouting complexes is increased from 3 nm beteewn two binary systems (TiO~(2+)-5-Br-PADAP and VO_2~+-5-Br-PADAP) to 55 nm between two trinary systems. By use of slowly forming VO_2~+ trinary complex when H_2O_2 is formerly added, TiO~(2+) can be determined at pH 4λ540nm in the presence of VO_2~+. TiO~(2+) cannot be coluratcd in acidic solution. By use of this fact VO_2~+ can be determined in 0.24 M H_2SO_4 solution at λ595 nm in the presence of TiO~(2+). The meth od has been applied to determine two kinds of standard steel sample with satisfactory results.

本文研究了钛、钒共存时不经分离用分光光度法测定钛和钒的方法。利用形成TiO~(2+)-5-Br-PADAP-H_2O_2和VO_2~+-5-Br-PADAP-H_2O_2三元混配络合物,使有色络合物的最大吸收波长之差由二元(TiO~(2+)(VO_2~+)-5-Br-PADAP)的3nm扩大到三元的55nm。同时利用先加过氧化氢钒三元混配络合物形成速度十分慢的性质,可以在pH4.0,λ_(540nm)处测钛,利用钛在稍大的硫酸浓度中不显色的性质,在0.24M硫酸溶液中于λ_(595nm)处测钒。用本文研究所得的方法对两种合金钢标样中的钛和钒的含量进行了测定,得到满意的结果。

 
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