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AbstractAbstract
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Original Title
Ehkstraktsionno-lyuminestsentnoe opredelenie evropiya v poluprovodnikovom germanii
Primary Subject
Source
Short note. For English translation see the journal Journal of Analytical Chemistry of the USSR (USA).
Record Type
Journal Article
Journal
Zhurnal Analiticheskoj Khimii; ISSN 0044-4502;
; v. 1330-1332

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AbstractAbstract
[en] A possibility of applying the method of laser stepwise photoionization atoms in vacuum to determine ytterbium trace quantities in (HCl + water) solutions is studied. Scheme of an experimental installation is described where a nitrogen laser with cross discharge simultaneously excites two dye lasers. Atomization of ytterbium chloride proceeds in an electrothermal atomizer at 1200 deg and pressure of 10-4 Pa. Signal/noise ratio when detecting a signal from 10-10 g Yb is equal to 200
Original Title
Opredelenie itterbiya v rastvorakh metodom atomnoj lazernoj fotoionizatsii
Primary Subject
Source
For English translation see the journal Journal of Analytical Chemistry of the USSR (USA).
Record Type
Journal Article
Journal
Zhurnal Analiticheskoj Khimii; ISSN 0044-4502;
; v. 38(3); p. 429-434

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AbstractAbstract
[en] A technique for the analysis of the products of cadmium axide cation sublattice radiolysis is worked out. It is shown that cadmium determination in the solutions With the cadmium concentration of 10-6 M and higher is possible to satisfactory error using the method of concentration element with Cd-selective indicator electrodes. The fact is revealed that the radiolysis products are formed in two modifications
Original Title
Ionometricheskoe opredelenie produktov radioliza azida kadmiya
Primary Subject
Secondary Subject
Source
For English translation see the journal Journal of Analytical Chemistry of the USSR (USA).
Record Type
Journal Article
Journal
Zhurnal Analiticheskoj Khimii; ISSN 0044-4502;
; v. 38(4); p. 653-656

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AbstractAbstract
[en] Technique of X-ray fluorescence determination of Pt, Ir, Pd, Rhl and RU in process solutions of variable composition containing about 20 elements is developed. The technique employs a combined method of an internal reference element in which mutual effect of the elements being determined is accounted for by means of multiple regression equations. During preparation to analysis the specimens were evaporated and dry residues were used as emitters. The reference elements were introduced into the specimens before evaporation. Change in weights due to evaporation Were taken into account in calculation of elemental concentrations. It is shown that reproducibility of the results of the analysis is characterized by a relative standard deviation eqUal to 5.5; 11.5; 4.2; 5.4 and 4.8%, respectively, for Pt, Ir, Rd, Rh and Ru. Limits of the Pt, Ir, Pd, Rh and Ru determination in the solutions calculated in compliance with 3s-criterion are, respectively, equal to: 0.007; 0.004; 0.007 and 0.004% g/l. Time requared to analyze one specimen, including preparation, is 5 to 6 h
Original Title
Rentgenospektral'noe opredelenie platinovykh metallov v tekhnologicheskikh rastvorakh
Primary Subject
Source
For English translation see the journal Journal of Analytical Chemistry of the USSR (USA).
Record Type
Journal Article
Journal
Zhurnal Analiticheskoj Khimii; ISSN 0044-4502;
; v. 38(7); p. 1279-1282

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AbstractAbstract
[en] Main metrological characteristics of estimating the rates of dissolution of alloy components and impurites by neutron activation and gamma spectrometry are considered. It has been shown taking an 06KhN28MDT alloy (in 30% H2SO4) as example that the standard deviation of convergence of estimating the rates of dissolution of macro- and microcomponents is a function of the dissolution rate and depends mainly on the nonrep oducibility of sample surface state as well as on statistical errors of gamma-spectrometric analysis at low dissolution rates
Original Title
O metrologicheskikh aspektakh opredeleniya skorostej rastvoreniya komponentov stalej i splavov s primeneniem nejtronnoj aktivatsii i gamma-spektrometrii
Primary Subject
Source
For English translation see the journal Journal of Analytical Chemistry of the USSR (USA).
Record Type
Journal Article
Journal
Zhurnal Analiticheskoj Khimii; ISSN 0044-4502;
; v. 40(1); p. 74-82

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AbstractAbstract
[en] A universal combined solvent for organic samples and standard reference samples is suggested which is composed of oxylene and acetic aldehyde. A method has been developed for preparing multielement reference samples. A procedure has been worked out for atomic emission determination of As, Bi, Cd, Co, Cr, Cu, Fe, In, Ni, Pb, Re, Se, Su, Te, V, Zn in organic extracts. The limits of detection are between 0.05 and 1.6 μ/ml. The relative standard deviation is 0.01. The systematic error is very small
Original Title
Pryamoe atomno-ehmissionnoe opredelenie neorganicheskikh ehlementov v organicheskikh ehkstraktakh s primeneniem induktsionnoj plazmy
Primary Subject
Source
For English translation see the journal Journal of Analytical Chemistry of the USSR (USA).
Record Type
Journal Article
Journal
Zhurnal Analiticheskoj Khimii; ISSN 0044-4502;
; v. 39(12); p. 2120-2125

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AbstractAbstract
[en] The steep ascension technique was used to estimate optimal conditions for the formation and solvent extraction by chloroform of a different-ligand complex of tungsten with o-nitrophenylfluorone and diantipyrylmethane. The influence of significant factors on the absorbance has been examined. A procedure has been developed of determining tungsten in thin films of a Co-W system. The error is not greater than 5%
Original Title
Optimizatsiya uslovij obrazovaniya raznoligandnogo kompleksa vol'frama s o-nitrofenilfluoronom i diantipirilmetanom krutogo voskhozhdeniya
Primary Subject
Secondary Subject
Source
For English translation see the journal Journal of Analytical Chemistry of the USSR (USA).
Record Type
Journal Article
Journal
Zhurnal Analiticheskoj Khimii; ISSN 0044-4502;
; v. 39(7); p. 1259-1262

Country of publication
AROMATICS, AZOLES, CHEMICAL ANALYSIS, COMPLEXES, ELEMENTS, HETEROCYCLIC COMPOUNDS, HYDROXY COMPOUNDS, METALS, OPTICAL PROPERTIES, ORGANIC CHLORINE COMPOUNDS, ORGANIC COMPOUNDS, ORGANIC HALOGEN COMPOUNDS, ORGANIC NITROGEN COMPOUNDS, PHENOLS, PHYSICAL PROPERTIES, PYRAZOLES, SEPARATION PROCESSES, SYNTHESIS, TRANSITION ELEMENT COMPLEXES, TRANSITION ELEMENTS
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AbstractAbstract
[en] Distribution of tartrate complexes of indium and gallium has been studied as a function of tartaric acid and tri-n-octylamine (TOA) concentrations. Gallium is extracted by less concentrated TOA solutions (0.09 M) and at lower tartaric acid concentrations than indium. The number of TOA and tartaric acid molecules involving into the extraction has been determined by the shift of equilibium and competitive reactions methods; the charge of the metal ions extracted has also been estimated. The mechanism of the extraction of the indium and gallium tartrate complexes has been established. The most reasonable extraction equation is given. It has been shown that gallium and indium are extracted via similar mechanisms. Tartaric acid is extracted together with tartrate complexes of the metals. The tartrate complexes are not extracted if the TOA solution is saturated with tartaric acid
Original Title
Issledovanie mekhanizma ehkstraktsii tartratnykh kompleksov galliya i indiya tri-n-oktilaminom
Primary Subject
Source
For English translation see the journal J. Anal. Chem. USSR.
Record Type
Journal Article
Journal
Zhurnal Analiticheskoj Khimii; ISSN 0044-4502;
; v. 33(10); p. 1940-1944

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AbstractAbstract
[en] A method for the neutron activation determination of impurities in high-purity bismuth with separation of the oxychloride base, has been developed. A minimal value of solubility of oxychloride corresponds to a very narrow range of concentration of chlorine ions and strongly depends on the solution acidity. From the data on the microimpurities behaviour, a conclusion is drawn that the method suggested can be used fo r the determining of the content of 40-45 elements
Original Title
Nejtronno-aktivatsionnoe opredelenie primesej v vysokochistom vismute s otdeleniem osnovy v vide oksikhlorida
Primary Subject
Source
For English translation see the journal Journal of Analytical Chemistry of the USSR (USA).
Record Type
Journal Article
Journal
Zhurnal Analiticheskoj Khimii; ISSN 0044-4502;
; v. 34(6); p. 1153-1157

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AbstractAbstract
No abstract available
Original Title
Kristallizatsionnoe analiticheskoe kontsentrirovanie mikrokomponentov; Impurities: Bi,Cr,Co,Ga,In,Mg,Mo,Mn,Ni,Pb,Ti,V,Zn
Primary Subject
Source
Short note; for English translation see the journal Journal of Analytical Chemistry of the USSR (USA).
Record Type
Journal Article
Journal
Zhurnal Analiticheskoj Khimii; ISSN 0044-4502;
; v. 34(5); p. 1025-1027

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