Influence of Speciation on the Response from Selenium to UV-Photochemical Vapor Generation
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- 資料種別
- 記事
- 著者・編者
- Toshihiro SUZUKIRalph E. STURGEONChengbin ZHENG 他
- タイトル（掲載誌）
- Analytical Sciences
- 巻号年月日等（掲載誌）
- 28(8)=243:2012.8
- 掲載巻
- 28
- 掲載号
- 8
- 掲載通号
- 243
- 掲載ページ
- 807-811
- 掲載年月日（W3CDTF）
- 2012-08
- ISSN（掲載誌）
- 0910-6340
- ISSN-L（掲載誌）
- 0910-6340
- 出版事項（掲載誌）
- Tokyo : Japan Society for Analytical Chemistry
- 出版地（国名コード）
- JP
- 本文の言語コード
- eng
- NDLC
- 対象利用者
- 一般
- 所蔵機関
- 国立国会図書館
- 請求記号
- Z54-F482
- 連携機関・データベース
- 国立国会図書館 : 国立国会図書館雑誌記事索引
- 書誌ID（NDLBibID）
- 023861857
- 整理区分コード
- 632
- 要約等
- By exposure to appropriate UV intensities, rapid and quantitative oxidation/reduction of inorganic selenite, selenate and several organoselenium compounds representative of those of biochemical/metabolic interest, including selenomethionine, selenobetaine, L-selenocystine, selenomethylselenocysteine, γ-glutamyl-seleno-methylselenocysteine and selenocystamine, is achieved. In the presence of acetic acid, quantitative conversion to volatile SeH<sub>2</sub> and SeCO occurs using a flow-through system comprising a highly efficient 40 W UV lamp for oxidation in tandem with a lower power 8 W UV photocatalytic reactor utilizing a thin-film coating of titania. The volatile reduced species are detected by atomic absorption spectrometry using a heated quartz tube atomizer. Direct photochemical conversion of selenite, selenomethionine, L-selenocystine, γ-glutamyl-Se-methylselenocysteine and selenocystamine occurs in the presence of 5% acetic acid, following exposure to an 8 W UV field, to yield volatile detectable species, whereas selenobetaine and selenate are unresponsive unless the latter is first subjected to oxidation by exposure to a highly efficient 40 W UV lamp and the selenate reduced in the presence of titania.
- DOI
- 10.2116/analsci.28.807
- オンライン閲覧公開範囲
- インターネット公開
- 連携機関・データベース
- 科学技術振興機構 : J-STAGE
- 要約等
- By exposure to appropriate UV intensities, rapid and quantitative oxidation/reduction of inorganic selenite, selenate and several organoselenium compounds representative of those of biochemical/metabolic interest, including selenomethionine, selenobetaine, L-selenocystine, selenomethylselenocysteine, γ-glutamyl-seleno-methylselenocysteine and selenocystamine, is achieved. In the presence of acetic acid, quantitative conversion to volatile SeH<sub>2</sub> and SeCO occurs using a flow-through system comprising a highly efficient 40 W UV lamp for oxidation in tandem with a lower power 8 W UV photocatalytic reactor utilizing a thin-film coating of titania. The volatile reduced species are detected by atomic absorption spectrometry using a heated quartz tube atomizer. Direct photochemical conversion of selenite, selenomethionine, L-selenocystine, γ-glutamyl-Se-methylselenocysteine and selenocystamine occurs in the presence of 5% acetic acid, following exposure to an 8 W UV field, to yield volatile detectable species, whereas selenobetaine and selenate are unresponsive unless the latter is first subjected to oxidation by exposure to a highly efficient 40 W UV lamp and the selenate reduced in the presence of titania.
- DOI
- 10.2116/analsci.28.807
- 関連情報（URI）
- 参照
- Integrated strategies for identification of selenometabolites in animal and plant samplesEffects of Selenium Supplementation for Cancer Prevention in Patients With Carcinoma of the SkinSome speculations on the mechanisms of photochemical vapor generationPhotochemical behavior of inorganic and organic selenium compounds in various aqueous solutionsUV light‐mediated alkylation of inorganic seleniumInvestigation of the selenium species distribution in a human B-cell lymphoma line by HPLC- and GC-ICP-MS in combination with HPLC-ESIMS/MS and GC-TOFMS after incubation with methylseleninic acidUV Vapor Generation for Determination of Selenium by Heated Quartz Tube Atomic Absorption SpectrometryCharacterization of aerosols produced by pneumatic nebulizers for inductively coupled plasma sample introduction: effect of liquid and gas flow rates on volume based drop size distributionsIdentification and quantitation of arsenic species in a dogfish muscle reference material for trace elementsComparative performance study of different sample introduction techniques for rapid and precise selenium isotope ratio determination using multi-collector inductively coupled plasma mass spectrometry (MC-ICP/MS)A study of Se-Hg antagonism in Glycine max (soybean) roots by size exclusion and reversed phase HPLC–ICPMSChemical vapor generation: are further advances yet possible?Application of photochemical reactions of Se in natural waters by hydride generation atomic fluorescence spectrometryPhotochemical Alkylation of Inorganic Selenium in the Presence of Low Molecular Weight Organic AcidsIsotope dilution quantification of ultratrace gamma-glutamyl-Se-methylselenocysteine species using HPLC with enhanced ICP–MS detection by ultrasonic nebulisation or carbon-loaded plasmaMercury-Selenium Correlations in Marine MammalsCritical evaluation of the application of photochemical vapor generation in analytical atomic spectrometryDevelopment of an on-line UV decomposition system for direct coupling of liquid chromatography to atomic-fluorescence spectrometry for selenium speciation analysisOn-Line HPLC-UV/Nano-TiO<sub>2</sub>-ICPMS System for the Determination of Inorganic Selenium SpeciesSurveying selenium speciation from soil to cell—forms and transformationsSeparation and identification of the selenium-sulfur amino acid S-(methylseleno)cysteine in intestinal epithelial cell homogenates by LC-ICP-MS and LC-ESI-MS after incubation with methylseleninic acidAnalytical Applications of Volatile Metal DerivativesUse of selenium in chemoprevention of bladder cancerVapor Generation by UV Irradiation for Sample Introduction with Atomic SpectrometrySeparation, purification and identification of the major selenium metabolite from human urine by multi-dimensional HPLC-ICP-MS and APCI-MSComplementary use of molecular and element-specific mass spectrometry for identification of selenium compounds related to human selenium metabolismThe use of high-selenium yeast to raise selenium status: how does it measure up?Identification of a novel selenium metabolite, Se-methyl-N-acetylselenohexosamine, in rat urine by high-performance liquid chromatography–inductively coupled plasma mass spectrometry and –electrospray ionization tandem mass spectrometryKinetics of the Reduction Reaction of Selenate Ions by TiO[sub 2] PhotocatalystIdentification of anionic selenium species in Se-rich yeast by electrospray QTOF MS/MS and hybrid linear ion trap/orbitrap MSnA High-Efficiency Photooxidation Reactor for Speciation of Organic Arsenicals by Liquid Chromatography−Hydride Generation−ICPMS
- 連携機関・データベース
- 国立情報学研究所 : CiNii Research
- 提供元機関・データベース
- Japan Link Center雑誌記事索引データベースCrossrefPubMedCiNii Articles
- 書誌ID（NDLBibID）
- 023861857
- NII論文ID
- 10030985189