M
Masafumi Taira
Researcher at KEK
Publications - 11
Citations - 245
Masafumi Taira is an academic researcher from KEK. The author has contributed to research in topics: Ascorbic acid & NOx. The author has an hindex of 8, co-authored 11 publications receiving 224 citations.
Papers
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Journal ArticleDOI
Continuous generation system for low-concentration gaseous nitrous acid
Masafumi Taira,Yukio Kanda +1 more
TL;DR: A flow type generation system based on the reaction of sodium nitrite solution with sulfuric acid has been developed for parts per billion levels of nitrous acid as mentioned in this paper, where reagent solutions are continuously pumped into a reaction vessel and drawn off to waste.
Journal ArticleDOI
Chemiluminescent method for continuous monitoring of nitrous acid in ambient air.
Yukio Kanda,Masafumi Taira +1 more
TL;DR: A continuous-flow method for measuring atmospheric HNO2 concentration in real time has been developed that uses a chemiluminescent NOx monitor to correct positive interferences from NO2 and peroxyacetyinitrate (PAN).
Journal ArticleDOI
Flow-injection analysis method for the determination of nitrite and nitrate in natural water samples using a chemiluminescence NOx monitor.
Yukio Kanda,Masafumi Taira +1 more
TL;DR: A flow-injection analysis method for the determination of nitrite and nitrate in natural water samples has been developed that consists of two systems based on their reduction to NO with hydrazine and/or ascorbic acid, followed by chemiluminescence detection.
Journal ArticleDOI
Characterization of a novel type of carbonic anhydrase that acts without metal cofactors
Yoshihisa Hirakawa,Miki Senda,Kodai Fukuda,Hong Yang Yu,Masaki Ishida,Masafumi Taira,Kazushi Kinbara,Toshiya Senda,Toshiya Senda +8 more
TL;DR: In this article, a previously uncharacterized protein group, named COG4337, constitutes metal-independent carbonic anhydrases from the newly discovered ι-class.
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Characterization of radiolytic products from air at a high-energy electron-positron storage ring
TL;DR: The measurements of radiolytic products have been made by irradiating the air using a flow-type reaction chamber with synchrotron radiation at the KEK TRISTAN electron-positron colliding ring as discussed by the authors.