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determination of phosphorus     
相关语句
  磷的测定
     Proved by three groups of experiments,the decomposing time to the determination of Phosphorus could be reduced from 30 minutes to 15 minutes
     三组对照实验表明 ,地面水总磷的测定的消解时间可由 30min缩减到 15min
短句来源
     Determination of phosphorus in whole blood by Spectrophotometry and the analysis of relativity on Ⅱ Diabetes Mellitus
     人体全血磷的测定及与Ⅱ型糖尿病相关性的初步分析
短句来源
     Determination of phosphorus in tin-lead solder
     锡铅焊料中磷的测定
短句来源
     Determination of Phosphorus in Iron Ores
     铁矿石中磷的测定——抗坏血酸还原磷钼蓝光度法
短句来源
     The determination of phosphorus in the geologic samples
     地质样品中磷的测定
短句来源
更多       
  磷测定
     A comparison of efficacy of different auxiliaries used in determination of phosphorus by ashing method
     灰化法磷测定中不同灰化助剂的效果比较
短句来源
     Improve on the method in determination of phosphorus trichloride in the air of workshop
     车间空气中三氯化磷测定方法的改进
短句来源
     The research about the method for determination of phosphorus in the diary products
     乳制品中磷测定方法的研究
短句来源
  测定磷
     The absorbance maximum is at 620 nm. Determination of phosphorus is not affected with mass ratioes R (UO 2 2+ /P) ≤1 4×10 3, R (C 2O 4 2- /P)≤8 8×10 2 and R (C 2O 4 2- /P)≤3 6×10 4 (one time wet cinefaction must be corried out). In aqueous phase, phosphorus can be directly developed and determinated.
     结果表明 ,当溶液中质量比Rm(UO2 2 + /P)≤ 1 4× 10 3 ,Rm(C2 O4 2 - /P)≤ 8 8× 10 2 和Rm(C2 O2 2 - /P)≤ 3 6×10 4 (1次湿式灰化 )时 ,可在水相中直接显色测定磷
短句来源
     The Application of SnSO_4 in the Determination of Phosphorus with Molybdenum Blue Photometry
     S_nSO_4在钼兰光度法测定磷中的应用
短句来源
     Determination of phosphorus by photometry combined with flow injection
     流动注射-光度法测定磷
短句来源
     Application of Matrix Modifier to the Determination of Phosphorus by Graphite Furnace Atomic Absorption Spectrometry
     石墨炉原子吸收光谱法测定磷时基体改进剂的应用研究
短句来源
     Organic phosphorus in UO 2C 2O 4·TRPO complex is converted to inorganic phosphorous with H 2SO 4 HNO 3 H 2O 2 wet cinefaction method. In 0.14 mol/L H 2SO 4 solution containing water soluble polyvinylalcohol as stabilizing agent, the highly sensitive ion associates are formed by the reacetion of basic dye ethyl violet with heteropoly molybdophosphoric blue. Spectrophotometric method is used for determination of phosphorus with these ion associates.
     以H2 SO4 HNO3 H2 O2 作氧化剂 ,采用湿式灰化法将UO2 C2 O4 ·TRPO配合物中的有机磷氧化成磷酸盐 ,并在 0 14mol/LH2 SO4 介质中 ,以水溶性聚乙烯醇为稳定剂 ,用碱性染料乙基紫与磷钼杂多蓝形成较高灵敏度的离子缔合物 ,在波长 6 2 0nm处用分光光度法测定磷含量。
短句来源
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  测定磷的
     The New Progresses in the Photometric Determination of phosphorus in the Metallurgical Analysis in the last Ten Years
     近十年来冶金分析中光度法测定磷的新进展
短句来源
     Progress In Photometric Determination of Phosphorus as Heteropoly Acid
     以杂多酸形式光度法测定磷的进展
短句来源
     A new method for the determination of phosphorus in molecular sieves has been developed by using the color system phosphorus(V) antimony potassium tartrate ammonium molybdate ascorbic acid. The optimum conditions of the determination of phosphorus were proposed.
     研究建立了以磷(V)-洒石酸锑钾-钼酸铵-抗坏血酸显色体系测定分子筛中磷含量的新方法,提出了测定磷的最佳条件。
短句来源
     The method of bismuth - phospho molybdenum blue photometry determination of phosphorus by mathematic correction overcome vanadium obstruction had described in this paper.
     本文详细叙述了用数学校正消除基体钒对磷铋钼蓝光度法测定磷的干扰的方法.
短句来源
     In this paper a new method of determination of phosphorus is proposed on the quenching effect of phosphorus to I 2-Luminol chemiluminescence reaction.
     利用PO3 - 4对碘 -鲁米诺化学发光反应的猝灭作用 ,建立了测定磷的化学发光新方法 .
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      determination of phosphorus
    A procedure for extraction-photometric determination of uranium(VI) was developed and procedures for the determination of phosphorus(V), arsenic(V), and vanadium(V) were modernized.
          
    Direct determination of phosphorus in vegetable oils by electrothermal atomic absorption spectrometry
          
    An approach to the practical implementation of the standard method of the direct determination of phosphorus in vegetable oils by electrothermal atomic absorption spectrometry with automated sample injection was proposed.
          
    It is pointed out that Russian scientists suggested several methods for the determination of phosphorus, including the known one with the use of ammonium molybdate.
          
    Determination of phosphorus in copper-phosphorus alloys, by GLC technique
          
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    A method for the determination of phosphorus in high purity silicon was described. 32P was separated by ammonium phosphomolybdate from the irradiated silicon matrix and was transformed into MgNH4PO4 6H2O, the activity of which was measured with a Au-Si surface barrier detector. The second-order interference was taken into consideration and the limit of detection in existence of the interference was evaluated to be 7×10-4 ppm.

    本文叙述了用放化分离法测定高纯硅中磷含量的实验方法,着重探讨了硅基体二级核反应干扰的计算以及存在此干扰下的方法灵敏度。方法灵敏度为7×10~(-4)ppm。

    The determination of phosphorus in V-K-P/SiO_2 catalyst. The phosphorus in P-type catalyst rea(?)ts with ammonium molybdate to form phospho-molybdic acid under acidic condition which is reduced to form phosphomolybdate blue complex by hydra/ine hydrochloride. CoJorimetric measurement is made at wave length 680nm. This method is featured by easy operation, good precision and adequate accuracy, little interference and good reproducibility.

    研究了V-K-P/SiO_2催化剂中磷含量的测定方法。将P型催化剂中的磷先与酸性钼酸铵反应生成磷钼酸后,用盐酸肼将其还原为磷钼兰络合物。在680nm波长处用72型分光光度计进行比色测定。操作简便,误差小,干扰少,重复性好.

    This paper describes the quantitative determination of phosphorus intantalum powder using incremental method with spark source mass spectro-metry and diluting the sample with high grade pure metal powder. It allowsmass spectrometry to determine not only trace elements but also the impuritywith higher concentration which is difficultly determined by other methods.Therefore, the measurement range of mass spectrometry has been extended.

    本文论述了采用火花源质谱增值法,并用高纯金属粉稀释样品,定量测定钽粉中磷,从而实现了质谱法不但能测定微量元素,也能测定其它方法难以测定的较高含量的杂质,扩大了应用范围。

     
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