The use of tungsten trioxide in the coulometric determination of total chlorine in organic and inorganic materials

Grondelle, M.C. Van; Zeen, P.J.

doi:10.1016/s0003-2670(01)95221-3

Cited by 8 publications

(3 citation statements)

References 4 publications

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“…Pyrohydrolysis [6][7][8][9][10] has been used for the determination of Cl and other halogens in rocks. The technique is fast and simple.…”

Section: Introductionmentioning

confidence: 99%

“…Quantitative separation of Cl from the sample matrix is possible with the use of accelerators such as SiO 2 , 6 V 2 O 5 7-9 and WO 3 . 10 In this work, we studied the pyrohydrolysis procedure as an alternative separation technique in order to develop a rapid and reliable method for the determination of 36 Cl in biological shield concrete. The procedure was optimized for the quantitative extraction of Cl from the concrete matrix.…”

Section: Introductionmentioning

confidence: 99%

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Determination of 36Cl in biological shield concrete using pyrohydrolysis and liquid scintillation counting

Itoh

Watanabe

Hatakeyama

et al. 2002

Analyst

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A method for the determination of 36Cl in biological shield concrete of nuclear reactors was developed. Cl in the concrete sample was extracted quantitatively by pyrohydrolysis at 900 degrees C and recovered in Na2CO3 solution for subsequent measurement of 36Cl by liquid scintillation counting. WO3 was used as an accelerator in the pyrohydrolysis. The Cl extraction procedure was optimized by investigating experimental conditions with the use of ion chromatography and its recovery was evaluated by the analysis of the geochemical reference samples. The detection limit of 36Cl was 0.02 Bq g(-1) for a sample weight of 2 g. The relative standard deviation was 3-7% for the samples containing 0.5 Bq g(-1) levels of 36Cl. The method was applied to determine 36Cl in biological shield concrete of the Japan Power Demonstration Reactor.

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“…Pyrohydrolysis [6][7][8][9][10] has been used for the determination of Cl and other halogens in rocks. The technique is fast and simple.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Determination of 36Cl in biological shield concrete using pyrohydrolysis and liquid scintillation counting

Itoh

Watanabe

Hatakeyama

et al. 2002

Analyst

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“…Conditions for complete combustion in the determination of chlorine or bromine were studied (91)(92)(93). In the finishing step, ion-selective electrodes (94)(95)(96) and coulometry (97,98) were used for Cl", Br", and I", respectively.…”

mentioning

confidence: 99%

Organic elemental analysis

S.¹,

Wang²,

Gutterson³

1982

Anal. Chem.

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This article is a continuation of the previous review (2) and covers the literature from October 1979 to September 1981. An exceptionally large number of research papers were published during this period. As has been mentioned before, the trend is to develop methods for organic elemental analysis at all levels (2). Whereas many studies have been carried out in the determination of the major constituents in organic compounds, reliable automated methods of general applicability are still limited to carbon, hydrogen, and nitrogen. Much attention has been drawn toward trace analysis, particularly for toxic elements present in all kinds of organic materials.

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Experience with the Microanalytical Determination of Elements in Coal

Laarse

Lädrach

1981

Mikrochim Acta

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The use of tungsten trioxide in the coulometric determination of total chlorine in organic and inorganic materials

Cited by 8 publications

References 4 publications

Determination of 36Cl in biological shield concrete using pyrohydrolysis and liquid scintillation counting

Determination of 36Cl in biological shield concrete using pyrohydrolysis and liquid scintillation counting

Organic elemental analysis

Experience with the Microanalytical Determination of Elements in Coal

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