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Obituary
Zenichi Yoshida (1925-2023)
Zenichi Yoshida (1925-2023)
Professor. Zenichi Yoshida,
a member of the Honorary Advisors of HETEROCYCLES (1975-1998),
has passed away on May 4, 2023 at the age of 97.
I deeply express my regret over his death.
Kunio Ogasawara
Editor
May 11, 2023
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Short Paper | Regular issue | Vol 85, No. 4, 2012, pp.927-932
Published online, 21st February, 2012
Published online, 21st February, 2012
DOI: 10.3987/COM-12-12438
■ New Type of Matrix for Analysis of Low Molecular Weight Compounds by MALDI-TOF MS
Masamichi Nakakoshi,* Natsumi Funakoshi, Hiroki Nakajima, and Masayoshi Tsubuki*
*Institute of Medicinal Chemistry, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
Abstract
Matrix for analysis of low molecular weight compound by MALDI-TOF MS was investigated. We found the new type of matrix, 5-aryl-1H-tetrazoles, which are suitable for the detection of low molecular weight compound ions. When propranolol hydrochloride was measured with 5-aryl-1H-tetrazoles, the strong matrix-derived peaks are not detected in low mass range.
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