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Analytica Chimica Acta | 1983

Orange-I laurate, a new chromogenic substrate for the assay of lipase in blood

Shinichi Kamachi; Kiyoshige Wakabayashi; Masatoshi Yamaguchi; Yosuke Ohkura

Abstract Eight long-chain fatty acid esters (laurates, myristates, palmitates and stearates) of sodium m - or p -(4-hydroxy-1-naphthylazo)-benzenesulfonate were synthesized and assessed as chromogenic substrates for the assay of lipase. All are hydrolyzed in the presence of lipase, the laurates most rapidly. Orange-I laurate (the p -compound) was selected for detailed study. A very selective assay of lipasein the presence of other esterases was achieved by adding sodium dodecylbenzenesulfate and protamine sulfate as inhibitors. Orange-I laurate could be used as a substrate for lipase in serum.


Archive | 1982

Light scattering immunoassay involving particles with selective frequency band apparatus

Yasuhiro Tsuji; Kiyoshige Wakabayashi


Archive | 1982

Liquid uptake and discharge apparatus

Mitsuo Watanabe; Shigeyuki Kimura; Hideki Konishi; Yasuhiro Tsuji; Kiyoshige Wakabayashi


Archive | 1981

Laser nephelometric system

Yashuhiro Tsuji; Kiyoshige Wakabayashi; Mitsuo Watanabe


Archive | 1982

Method and apparatus for measuring antigen-antibody reactions

Yasuhiro Tsuji; Kiyoshige Wakabayashi


Chemical & Pharmaceutical Bulletin | 1983

New chromogenic substrates for the assy of esterases. Acetates and butyrates of phenolic naphthylazo compounds with sulfonic acid group.

Shinichi Kamachi; Kiyoshige Wakabayashi; Kiyoshi Zaitsu; Yosuke Ohkura


Chemical & Pharmaceutical Bulletin | 1983

Spectrophotometric Assay for Lipase in Serum Using a Chromogenic Substrate, Orange I Laurate

Shinichi Kamachi; Kiyoshige Wakabayashi; Masatoshi Yamaguchi; Yosuke Ohkura


Archive | 1981

Laser-nephelometrisches Verfahren

Yasuhiro Tsuji; Kiyoshige Wakabayashi; Mitsuo Watanabe


Archive | 1982

Fluid absorption and output device

Mitsuo Watanabe; Shigeyuki Kimura; Hideki Konishi; Yasuhiro Tsuji; Kiyoshige Wakabayashi


Archive | 1982

Fluessigkeitsaufnahme- und -ausgabevorrichtung Liquid intake and output device

Mitsuo Watanabe; Shigeyuki Kimura; Hideki Konishi; Yasuhiro Tsuji; Kiyoshige Wakabayashi

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