Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Kazuto Sazawa"'
Publikováno v:
Electrochem, Vol 5, Iss 3, Pp 370-379 (2024)
An electrochemical bioassay based on rotating droplet electrochemistry by using an electron-transfer mediator was developed for the evaluation of a wide variety of pollutants such as antibiotics, heavy metals, and pesticides in the water environment.
Externí odkaz:
https://doaj.org/article/83044e71e43e40fc892c60bc6e96d698
Publikováno v:
Chemosensors, Vol 12, Iss 9, p 171 (2024)
The formation of scale in hot springs and geothermal brines can be detected quickly and easily using optical fiber-based scale sensors. This paper describes the development of a portable sensor for the in situ detection of scale in geothermal water.
Externí odkaz:
https://doaj.org/article/6fee754c307a4f0e9d6442e6aca093c0
Autor:
Sachiko Osada, Seira Takahashi, Kazuto Sazawa, Hideki Kuramitz, Nozomi Kohama, Takuya Okazaki, Shigeru Taguchi, Noriko Hata
Publikováno v:
Separations, Vol 11, Iss 6, p 173 (2024)
In this study, we present a method for ion-associated liquid phase (IALP) separation and concentration of analytes from an aqueous matrix into an IALP formed in situ by the charge neutralization reaction of organic cations and anions, without centrif
Externí odkaz:
https://doaj.org/article/4f8a923aa0f44cf5bc78bab98bfa98bc
Autor:
Noriko Hata, Akane Igarashi, Rie Yasui, Maho Matsushita, Nozomi Kohama, Tomoka Komiyama, Kazuto Sazawa, Hideki Kuramitz, Shigeru Taguchi
Publikováno v:
AppliedChem, Vol 3, Iss 1, Pp 32-44 (2023)
The concentration region at which the solvent is formed during in situ solvent formation microextraction is determined by varying the concentrations of the two components required to form a solvent. In particular, a solvent is formed in situ during i
Externí odkaz:
https://doaj.org/article/f80f238b905c4e0899f9811fd7b3bb3a
Autor:
Noriko Hata, Seira Takahashi, Sachiko Osada, Sakura Katagiri, Mayumi Naruse, Akane Igarashi, Kazuto Sazawa, Shigeru Taguchi, Hideki Kuramitz
Publikováno v:
Molecules, Vol 28, Iss 22, p 7525 (2023)
The design of a simple approach enabling the detection of bisphenol A (BPA) in water samples without the need for large amounts of solvents is of utmost importance. This paper reports a simple method for the separation, concentration, and quantificat
Externí odkaz:
https://doaj.org/article/74fe26af3c92449ca9994529d0658c07
Autor:
Kazuto Sazawa, Hideki Kuramitz
Publikováno v:
Sensors, Vol 15, Iss 3, Pp 5331-5343 (2015)
Soil enzymes play essential roles in catalyzing reactions necessary for nutrient cycling in the biosphere. They are also sensitive indicators of ecosystem stress, therefore their evaluation is very important in assessing soil health and quality. The
Externí odkaz:
https://doaj.org/article/20684e37e2244e37b20c6ec5eb268a60
Autor:
Kazuharu Sugawara, Masami Fukushima, Shigeru Taguchi, Noriko Hata, Kazuto Sazawa, Yasuaki Nanayama, Hideki Kuramitz
Publikováno v:
Sensors, Vol 12, Iss 12, Pp 17414-17432 (2012)
The SOS/umu genotoxicity assay evaluates the primary DNA damage caused by chemicals from the β-galactosidase activity of S. typhimurium. One of the weaknesses of the common umu test system based on spectrophotometric detection is that it is unable t
Externí odkaz:
https://doaj.org/article/83e70027fecf4ff8a057305a7090d24f
Publikováno v:
Analytical Sciences. 39:857-865
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::576942123dbe2c3562555cb05e9bad8e
https://doi.org/10.1007/s44211-023-00286-9
https://doi.org/10.1007/s44211-023-00286-9
Publikováno v:
Analytical Sciences. 39:123-129
Soil enzymes are biological indicators in environmental and agricultural monitoring. However, brownish humic acid (HA) in samples interferes significantly with various analytical methods, especially in optical-based techniques. Here, we implemented a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d59a740f52db683e75ad92dad169c7da
https://doi.org/10.1007/s44211-022-00219-y
https://doi.org/10.1007/s44211-022-00219-y
Autor:
Nozomi Kohama, Koki Matsuhira, Takuya Okazaki, Kazuto Sazawa, Noriko Hata, Hideki Kuramitz, Shigeru Taguchi
Publikováno v:
Analytical and Bioanalytical Chemistry. 414:8389-8400
A novel simple and functional colorimetric methodology for on-site environmental water analysis was proposed. This method combines coloration of the analyte and extraction of the colored species on dispersed particulates during their sedimentation in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9cef2a20992258cd6d87b8e2d0530f2d
https://doi.org/10.1007/s00216-022-04375-y
https://doi.org/10.1007/s00216-022-04375-y