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Article
Ion exchange separation of strontium and rubidium on Dowex 50W-X8, using the complexation properties of EDTA and DCTA
A chromatographic method for separation of strontium from rubidium, using the unique alkaline-earth metal complexation ability of the carboxylic acids EDTA and DCTA is proposed. The method was developed in ord...
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Article
Determination of slopes of calibration lines in multi element XRF analysis of thin films using polychromatic excitation from Mo, Au, W, and Cr anodes and one standard
An algorithm is described for the theoretical calculation of the slopes of calibration lines for the elements of the K-series in multi element X-ray fluorescence analysis of thin films using polychromatic excitat...
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Article
Reverse-phase chromatographic separation of Co(II) and Co(III) as the Co(DEDTC)3 and Co(acac)3 complexes
A reverse-phase chromatographic method is described for the simultaneous determination of Co(II) and Co(III) using gradient elution of the Co(DEDTC)3 and Co(acac)3 complexes, respectively, with phosphate buffere...
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Article
Vanadium speciation by ion chromatography
An ion-chromatographic method, using a carbonate-buffered (1,2-cyclohexylenedinitrilo)tetraacetic acid (CDTA) eluant, is described for the simultaneous determination of vanadium(IV) and vanadium(V). Vanadium(I...
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Article
Simultaneous determination of toxic heavy metals in Metformin hydrochloride using reversed-phase high-performance liquid chromatography
A rapid and sensitive reversed phase HPLC technique was developed for the determination of seven toxic heavy metals in biological matrices. Cd, Pb, Ni, Co, Bi, Cu and Hg could be detected and quantified at ppb...
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Article
Mono-standard calibration approach to multi-element XRF analysis of thin films using polychromatic excitation
A reliable method is described for the calculation of slopes of calibration lines for thin-film samples using polychromatic excitation. Theoretically calculated slopes for elements within one series, e.g. the ...
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Chapter
Separation of Ruthenium and Molybdenum by Cation Exchange Chromatography on Ag 50W-X4 in a Nitric Acid-Ethylenediamine Mixture
The 99Mo-99Tc-generator is widely used in nuclear medicine. 99Mo can be obtained from the fission of 235U in a nuclear reactor. 103Ru is one of the numerous fission products to be separated from 99Mo. 103Ru can e...
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Article
On-line preconcentration of silver on activated alumina and determination in borehole water by flow injection atomic absorption spectrophotometry
A micro column of activated alumina in the basic form was used in conjunction with flame atomic absorption for the preconcentration and determination of silver in borehole water. The silver was accumulated on ...
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Article
Multi-element X-ray fluorescence analysis of thin films using a mono-standard calibration procedure
A semi-fundamental approach to calibration for multi-element X-ray fluorescence analysis of thin films is described. The curve, calibration line slope vs. atomic number, is calculated using known values for ma...
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Article
Energy dispersive XRFA of solutions containing Fe and trace amounts of Co and other heavy metals after selective separation on the cellulose exchanger Hyphan
Die Eliminierung der Störung durch Fe Kα-Strahlung bei der Bestimmung von Co durch Energiedispersive RFA wird beschrieben. Zwei Verfahren werden verglichen: a) Elution des Eisens von Cellulose-HyphanFiltern nach ...
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Article
Comparison of trace element determination in powdered soil and grass samples by energy-dispersive XRF and by ICP-AES
Es wird gezeigt, daß Spurenelementkonzentrationen bis herunter zu 1 bis 10 μg/g in pulverförmigen Boden- und Grasproben durch RFA bestimmt werden können unter Verwendung des Compton-Streupeaks zur Korrektur kl...
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Article
Multi-element analysis by energy-dispersive X-ray fluorescence using a simple calibration procedure, requiring only one or two standards
Eine zuverlässige Methode für die Bestimmung der Steigungen der Eichkurven für die Multielementanalyse durch energiedispersive Röntgenfluorescenz wird beschrieben. Die Methode basiert auf der Normierung theore...
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Article
Utilization of cyclotron produced fast neutrons in the activation analysis for oxygen
The possible application of cyclotron-produced fast neutrons to activation analysis for oxygen based on the16O(n, p)16N reaction has been investigated. Neutrons were produced by bombarding a thick beryllium targe...
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Article
The isotopic analysis of boron by the coincident measurement of complementary particles
The coincident measurement of both nuclear reaction products at their complementary angles was used for the isotopic analysis of boron by the reactions10B(d,p)11B and11B(d,α)9Be. Both isotopes were determined sim...
