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Methods for the Determination of Protoveratrine
Journal of the American Pharmaceutical Association (Scientific ed.), 1955Infrared and titrimetric procedures for the evaluation of protoveratrine mixtures are reported which are not specific for either protoveratrine A or protoveratrine B. A method for the quantitative estimation of protoveratrine A and protoveratrine B is described in which the alkaloids are separated by paper partition chromatography, eluted, and ...
E W, GRANT, E E, KENNEDY
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Spectrofluorometric Method for NO Determination
Analytical Biochemistry, 1994A spectroscopic method for the quantitative determination of NO in aqueous solution is presented. The method is based on the uv absorbance of nitrosothiols, coupled with the inner filter effect. A threshold of 5.10(-7) M with a wide dynamic range of 5.10(-7)-10(-4) M are obtained. This method enables measurements in brain homogenates. Ultimately, since
G, Gabor, N, Allon
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A Method for the determination of Penicillinase
Nature, 1954Henry and Housewright1 described a manometric method for the assay of penicillinase which was based on the formation of penicilloic acid from penicillin in the presence of this enzyme. It has been found that a convenient way of following this reaction without the use of a manometric apparatus is to estimate penicilloic acid iodometrically.
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Determination device, determination method, and determination program
2021TYOU IIFAN +2 more
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METHOD FOR DISTANCE DETERMINATION
2021ROMME JACOBUS PETRUS ADRIANUS +2 more
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