Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Tadao Okutani"'
Publikováno v:
Journal of AOAC INTERNATIONAL. 84:1475-1484
A flow-injection system was developed for the determination of ethanol with an immobilized enzyme-reactor column. This system, which consisted of hand-made reactor columns packed with alcohol oxidase and horseradish peroxidase immobilized onto chitos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::410f5f9cd5a8333db65180963aed7ef4
https://doi.org/10.1093/jaoac/84.5.1475
https://doi.org/10.1093/jaoac/84.5.1475
Publikováno v:
Talanta. 53:1117-1126
Antimony(III) was preconcentrated on activated carbon (AC) as the antimony(III)–pyrogallol complex. Prior to the preconcentration, antimony(V) was reduced to antimony(III) with potassium iodide and ascorbic acid. The antimony adsorbed on the AC was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66ed6c4ccb59ae11ace3996dcb4bba38
https://doi.org/10.1016/s0039-9140(00)00621-4
https://doi.org/10.1016/s0039-9140(00)00621-4
Publikováno v:
Analytical Sciences. 16:517-521
A combination technique of some kinds of enzymatic reactions for flow injection analysis with an immobilized enzyme-reactorcolumn was studied. This system consisted of hand-made reactor columns packed with glucose oxidase and horseradish peroxidase i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::319fcdef26921d24c7887490abaeb786
https://doi.org/10.2116/analsci.16.517
https://doi.org/10.2116/analsci.16.517
Publikováno v:
Analytical Sciences. 16:275-281
The relationship between hydrogen peroxide and nitrate and nitrite by monitoring these substances in rain water was investigated. For the determination of hydrogen peroxide, our previously reported FIA system was applied. For the determination of nit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16618701ce3925ef4c4efabc158c73bd
https://doi.org/10.2116/analsci.16.275
https://doi.org/10.2116/analsci.16.275
Publikováno v:
BUNSEKI KAGAKU. 49:15-19
カーボン充填カラムを用いるイオンクロマトグラフィーをアジ化物イオンの定量に応用した。水酸化テトラブチルアンモニウム及びアセトニトリルを含む炭酸ナトリウム系移動相を用い,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16ed915b813c9d899145d57c0b73f3aa
https://doi.org/10.2116/bunsekikagaku.49.15
https://doi.org/10.2116/bunsekikagaku.49.15
Publikováno v:
Analytical Sciences. 15:1077-1082
It was found that a FIA system with an immobilized enzyme reaction column could be utilized for the determinations of hydrogen peroxide in some water samples, such as rain water and tap water. A column was packed with chitosan beads immobilizing hors
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bbf7341494a0581ddc86e51db8e9f03
https://doi.org/10.2116/analsci.15.1077
https://doi.org/10.2116/analsci.15.1077
Publikováno v:
Analytical Sciences. 15:1145-1148
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fd45368517d5537725074529166c090
https://doi.org/10.2116/analsci.15.1145
https://doi.org/10.2116/analsci.15.1145
Publikováno v:
Analytica Chimica Acta. 398:289-296
A coprecipitation method with chitosan was studied for the determination of ruthenium in water samples by graphite furnace atomic absorption spectrometry. Ruthenium (0.1–5.0 μg) is coprecipitated quantitatively from a aqueous sample solution (100
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd1a41a797ccb8d69dc4f881e86e9350
https://doi.org/10.1016/s0003-2670(99)00430-4
https://doi.org/10.1016/s0003-2670(99)00430-4
Publikováno v:
Journal of Chromatography A. 844:403-408
This study describes the utilization of carbonyl- 2,4-dinitrophenylhydrazine (DNPH) derivatives for the determination of a micro amount of carbonyl compounds in air by liquid chromatography-mass spectrometry (LC-MS). After the carbonyl compounds are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11485ffe97bdd67f25750e48f745e3cd
https://doi.org/10.1016/s0021-9673(99)00307-6
https://doi.org/10.1016/s0021-9673(99)00307-6
Publikováno v:
Analytical Sciences. 15:269-275
The properties of chitosan to adsorb metal ions and to dissolve in some organic acids were applied to the preconcentration and determination of copper(II) in water samples by tungsten metal furnace atomic absorption spectrometry. Copper(II) was quant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f2bbfc9370e17c7eae4c1d2c5e67f5f
https://doi.org/10.2116/analsci.15.269
https://doi.org/10.2116/analsci.15.269