Sensitivities and Other Properties of Reagents for the Spectrophotometric Determination of Boron.

“…The most widely used procedure is to extract a complex of BF4 ion with a derivative of thionine (methylene blue) into a nonaqueous solvent (40)(41)(42)(43)(44). The most widely used procedure is to extract a complex of BF4 ion with a derivative of thionine (methylene blue) into a nonaqueous solvent (40)(41)(42)(43)(44).…”

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confidence: 99%

“…Absorption spectrophotometry has been applied successfully to the analysis of BF4-ion. The most widely used procedure is to extract a complex of BF4 ion with a derivative of thionine (methylene blue) into a nonaqueous solvent (40)(41)(42)(43)(44). Tenney (15,16) first reported the use of this procedure in the analysis of borosilicate glass deposited on silicon wafers.…”

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confidence: 99%

Chemical and Electron Microprobe Analysis of Borophosphosilicate and Phosphosilicate Glasses

Hughes

Wonsidler

1987

J. Electrochem. Soc.

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Chemical and electron microprobe analysis techniques have been applied to the analysis of phosphorus and boron in low pressure chemical vapor deposited glasses on silicon. Borophosphosilicate, phosphosilicate, and borosilicate glasses were studied. An ion chromatographic analysis was developed which determines boron and phosphorus simultaneously, gives rapid analytical turnaround, and is capable of measuring as low as 0.01 weight percent of boron or phosphorus in a typical deposited glass sample. The ion chromatographic analysis also showed that at least two forms of phosphorus are normally present in phosphosilicate and borophosphositicate glasses, and was able to quantitatively speciate the phosphorus in a glass sample in a single chromatographic run. For total phosphorus and boron in the glasses agreement between the various chemical analyses and the electron microprobe analysis was excellent.) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 138.251.14.35 Downloaded on 2015-06-18 to IP Vol. 134, No. 6 PSG AND BPSG ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 138.251.14.35 Downloaded on 2015-06-18 to IP

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“…The composition of the complex formed by boric acid and 1,1'-dianthrimide in sulfuric acid medium has the molecular formula of CseH^NzOisBsS (289). The sensitivities of 12 hydroxyanthroquinone and anthraquinonylamine reagents and nine other reagents for the colorimetric determination of boron have been compared and the relative merits of each delineated (186).…”

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confidence: 99%