Zobrazeno 1 - 10 of 30 pro vyhledávání: '"Kazuhiro Kuwata"'
3
Sensitive flame ionization detector for the determination of traces of atmospheric hydrocarbons by capillary column gas chromatography
Autor: Kazuhiro Kuwata, Yoshio Tsujino
Publikováno v: Journal of Chromatography A. 642:383-388
A sensitive flame ionization detector was developed for capillary column gas chromatography. The detector used no make-up gas and lower flow-rates of hydrogen and air to suppress detector noise and to achieve maximum response. The detector was respon
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::90d881c404a6f5d94e6de9dbc493a4ea
https://doi.org/10.1016/0021-9673(93)80102-e
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4
Practical method for monitoring polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in the atmosphere
Autor: Seiji Tanaka, Tameo Okumura, Yasumasa Yamaguchi, Shuichi Nakashima, Yasuko Nakato, Kazuhiro Kuwata, Yukiyasu Yamashita, Tomoya Kohno
Publikováno v: Journal of Chromatography A. 643:25-33
A practical method is described for monitoring tetra- to octachlorodibenzo-p-dioxins (T4-O8CDDs) and tetra- to octachlorodibenzofurans (T4-O8CDFs) in atmospheric samples at ground level. The substances in air were sampled on quartz fibre and polyuret
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ef3bcc4fbd5f95a717c4e8aae2f57b87
https://doi.org/10.1016/0021-9673(93)80537-i
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5
Determination of aliphatic and aromatic aldehydes in polluted airs as their 2,4-dinitrophenylhydrazones by high performance liquid chromatography
Autor: Yoshiaki Yamasaki, Kazuhiro Kuwata, Michiko. Uebori
Publikováno v: Journal of chromatographic science. 17(5)
A reversed-phase high performance liquid chromatography system with a LiChrosorb RP-18 column and acetonitrile-water mobile phase has been applied to the determination of C1-C6 aliphatic and aromatic aldehydes in polluted airs such as urban air, indu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efab3f21b2dc374005c28fa5c4f20bce
https://pubmed.ncbi.nlm.nih.gov/19847986
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6
Preconcentration technique for introducing gaseous or volatile compounds into a capillary gas chromatographic column
Autor: Kazuhiro Kuwata, Tomoya Kohno
Publikováno v: Journal of Chromatography A. 587:338-342
A convenient cryofocusing technique was developed for introducing a gas or vapour sample into a capillary column. Precise temperature control was attained at the trapping segment down to −165°C in a gas chromatographic oven by controlling the flow
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ed484a95648c07fce646196fa8377938
https://doi.org/10.1016/0021-9673(91)85180-n
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10
Ion chromatographic determination of nitrogen dioxide in the atmosphere by using a triethanolamine-coated cartridge
Autor: Yoshio Tsujino, Keisuke Taguchi, Kazuhiro Kuwata, Yoshinori Nishikawa
Publikováno v: Journal of Chromatography A. 370:121-129
Nitrogen dioxide in air was sampled by the use of Sep-Pak C 18 cartridge impregnated with triethanolamine. The trapped nitrogen dioxide was determined as nitrite and nitrate ions by ion chromatography. In the active sampling mode, air could be sample
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::07a896990f07773d4cd76226a973b52a
https://doi.org/10.1016/s0021-9673(00)94680-6
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