Masami Hirai
Nagasaki University
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Masami Hirai.
Japanese Journal of Hospital Pharmacy | 1991
Yoshikazu Ishii; Yukie Yasumura; Hirofumi Kawasaki; Masami Hirai; Masataka Ichikawa
As a preliminary study, the bacterial endotoxin test using an injection with a strong color (hematoporphyrin sodium) was examined. With the method in the 11 th edition of the Japanese Pharmacopoeia, the detection sensitivity was 0.25 endotoxin units/ml.This method did not have sufficient detection sensitivity for endotoxin in human.Therefore, a nephelometry method using a multiplate was studied.With this method, it was possible that of 96 samples was measured in only 30 minutes. The sensitivity of this method was 0.1 endotoxin units/ml for hematoporphyrin sodium injection.When an analytical curve was prepared using standard endotoxin, high linearity was obtained. This result demonstrated that the bacterial endotoxin test by the nephelometry method will be useful as replacement for the pyrogen test in hospital pharmacy.
Japanese Journal of Pharmaceutical Health Care and Sciences | 2007
Jin Tokunaga; Norito Takamura; Yumiko Furuya; Toshiro Motoya; Masami Hirai; Masashi Nagata; Akio Kawachi; Akito Suzuki; Toshikazu Matsuoka
Japanese Journal of Pharmaceutical Health Care and Sciences | 2008
Masashi Nagata; Muneaki Hidaka; Rie Ohno; Tomomi Iwakiri; Manabu Okumura; Kazuhiko Arimori; Akito Suzuki; Akio Kawachi; Jin Tokunaga; Masami Hirai; Norito Takamura; Toshiro Motoya; Ryuichi Yamamoto
Annals of Pharmacotherapy | 1996
Masami Hirai; Emi Tatuso; Masaharu Sakurai; Masataka Ichikawa; Fukuzo Matsuya; Yutaka Saito
Biological & Pharmaceutical Bulletin | 1998
Masahiko Ohsako; Hideto To; Chitose Nakamura; Misato Yamada; Osami Tsuzuki; Emi Tatsuo; Tomoki Nakashima; Masami Hirai; Hitoshi Sasaki; Masataka Ichikawa; Fukuzo Matsuya; Yutaka Saito
Biological & Pharmaceutical Bulletin | 2002
Shigeru Kawakami; Nao Ohshima; Ryu Hirayama; Masami Hirai; Takashi Kitahara; Toshiyuki Sakaeda; Takahiro Mukai; Koyo Nishida; Junzo Nakamura; Mikiro Nakashima; Hitoshi Sasaki
Japanese Journal of Pharmaceutical Health Care and Sciences | 2008
Masami Hirai; Akito Suzuki; Takashi Majima; Akira Sakata; Toshiro Motoya; Akio Kawachi; Yukari Shibata; Yumiko Furuya; Jin Tokunaga; Norito Takamura
Japanese Journal of Pharmaceutical Health Care and Sciences | 2004
Norihide Higuchi; Nobuhiro Ichikawa; Toyoharu Mine; Mikiro Nakashima; Masami Hirai; Hitoshi Sasaki
Japanese Journal of Pharmaceutical Health Care and Sciences | 2006
Hirofumi Kawasaki; Akiko Nakamura; Yuriko Maezima; Mayuko Izumida; Kimiko Ohta; Miwako Mori; Hiroyuki Yamaguchi; Kenichi Yamakawa; Kenichi Fukushima; Takashi Mazima; Akito Suzuki; Masami Hirai
Japanese Journal of Hospital Pharmacy | 1996
Hirofumi Kawasaki; Shoko Kanmera; Shintaro Asada; Masami Hirai; Masataka Ichikawa