Výsledky vyhledávání - "Miki Katsuhara"

Residue Levels of Organophosphate Pesticides and Dialkylphosphates in Agricultural Products in Japan

Autor: Tomoyuki Tsuchiyama, Yuki Ito, Masaru Taniguchi, Miki Katsuhara, Hitoshi Miyazaki, Michihiro Kamijima

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e1071e87ea40555fd13cc6c3669aadf8
https://doi.org/10.2139/ssrn.4438087

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Quantitative analysis of organophosphate pesticides and dialkylphosphates in duplicate diet samples to identify potential sources of measured urinary dialkylphosphates in Japanese women

Autor: Tomoyuki Tsuchiyama, Yuki Ito, Naoko Oya, Karin Nomasa, Hirotaka Sato, Kyoko Minato, Kazuya Kitamori, Shiori Oshima, Ayako Minematsu, Kazumasa Niwa, Miki Katsuhara, Kosuke Fukatsu, Hitoshi Miyazaki, Takeshi Ebara, Michihiro Kamijima

Publikováno v: Environmental Pollution. 298:118799

Increased levels of dialkylphosphates (DAP) in maternal urine are associated with a variety of adverse developmental outcomes in children. Although urinary DAP levels are usually considered to be a marker of exposure to organophosphate (OP) pesticide

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::424c15e081f51e6a41fd62a04236f034
https://doi.org/10.1016/j.envpol.2022.118799

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Compensation of matrix effects in gas chromatography–mass spectrometry analysis of pesticides using a combination of matrix matching and multiple isotopically labeled internal standards

Autor: Masahiro Nakajima, Miki Katsuhara, Tomoyuki Tsuchiyama

Publikováno v: Journal of Chromatography A. 1524:233-245

In the multi-residue analysis of pesticides using GC-MS, the quantitative results are adversely affected by a phenomenon known as the matrix effect. Although the use of matrix-matched standards is considered to be one of the most practical solutions

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01d214700207641f4e8d2baf19358715
https://doi.org/10.1016/j.chroma.2017.09.072

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Combined use of a modifier gas generator, analyte protectants and multiple internal standards for effective and robust compensation of matrix effects in gas chromatographic analysis of pesticides

Autor: Tomoyuki Tsuchiyama, Masahiro Nakajima, Miki Katsuhara, Atsushi Yamamoto, Jun Sugiura

Publikováno v: Journal of chromatography. A. 1589

In the analysis of pesticides performed with gas chromatography, the quantitative performance of measurements can be severely compromised by phenomena known as matrix effects. In seeking a solution to the problem of matrix effects, the application of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9371191c652f2095b670fc2858f0c7a
https://pubmed.ncbi.nlm.nih.gov/30635172

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