نتایج جستجو برای: aminoantipyrine

تعداد نتایج: 225  

Journal: :Hiroshima journal of medical sciences 1992
K Asano H Iwasaki K Fujimura M Ikeda Y Sugimoto A Matsubara K Yano H Irisawa F Kono M Kanbe

Hydrogen peroxide was generated from creatinine by the sequential enzyme reactions of creatinine amidohydrolase, creatine amidinohydrolase and sarcosine oxidase. Hydrogen peroxide was, in turn, used stoichiometrically for the condensation of 4-aminoantipyrine and N-ethyl-N-(2-hydroxy-3-sulfopropyl)-m-toluidine catalyzed by horse-radish peroxidase, resulting in the formation of quinone dye with ...

Journal: :Clinical chemistry 1984
J D Artiss R J McEnroe B Zak

A colorimetric peroxidase-coupled procedure for determination of creatinine in human serum and urine is described. A 30-s sample pre-treatment with bilirubin oxidase eliminates interference from endogenous bilirubin. The 4-aminoantipyrine-2-hydroxy-3,5-dichlorobenzenesulfonate chromogen system of this method is about fourfold more sensitive than current procedures that involve monitoring NAD(P)...

2014
Claudia Araceli Contreras-Celedón Darío Mendoza-Rayo José A Rincón-Medina Luis Chacón-García

A simple and efficient catalytic system based on a Pd complex of 4-aminoantipyrine, 4-AAP-Pd(II), was found to be highly active for Suzuki-Miyaura cross-coupling of aryl iodides and bromides with phenylboronic acids under mild reaction conditions. Good to excellent product yields from the cross-coupling reaction can be achieved when the reaction is carried out in ethanol, in the open air, using...

Journal: :Clinical chemistry 1966
B Klein M Oklander S Morgenstern

A procedure is presented for the automated determination of acid phosphatase activity in biological materials using the Robot Chemist. Although either phenylphosphate and a-naphthylphosphate may be used as substrate in this analysis, the procedure is described in detail for serum acid phosphatase using a-naphthylphosphate in 0.1 M citrate, pH 5.2, since this substrate is more selective for pros...

Journal: :iranian journal of pharmaceutical research 0
kangkang zhi lanzhou university of technolog zhongduo yang lanzhou university of technology jie sheng lanzhou university of technology zongmei shu lanzhou university of technology yin shi lanzhou institute of husbandry and pharmaceutical sciences of caas

to develop a new more accurate spectrophotometric method for detecting monoamine oxidase inhibitors from plant extracts, a series of amine substrates were selected and their ability to be oxidized by monoamine oxidase was evaluated by the hplc method and a new substrate was used to develop a peroxidase-linked spectrophotometric assay. 4-(trifluoromethyl) benzylamine (11) was proved to be an exc...

Journal: :The International Journal of Biotechnology 2015

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