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The Van Slyke determination is a chemical test for the determination of amino acids containing a primary amine group. It is named after the biochemist Donald Dexter Van Slyke (1883-1971). [1] One of Van Slyke's first professional achievements was the quantification of amino acids by the Van Slyke determination reaction. [2]
Buffer capacity rises to a local maximum at pH = pK a. The height of this peak depends on the value of pK a. Buffer capacity is negligible when the concentration [HA] of buffering agent is very small and increases with increasing concentration of the buffering agent. [3] Some authors show only this region in graphs of buffer capacity. [2]
Donald Dexter Van Slyke (March 29, 1883 – May 4, 1971), nicknamed Van, was a Dutch American biochemist. His achievements included the publication of 317 journal articles and 5 books, [ 1 ] as well as numerous awards, among them the National Medal of Science and the first AMA Scientific Achievement Award . [ 1 ]
With nitrous acid, one obtains glycolic acid (van Slyke determination). With methyl iodide, the amine becomes quaternized to give trimethylglycine, a natural product: H 3 N + CH 2 COO − + 3 CH 3 I → (CH 3) 3 N + CH 2 COO − + 3 HI. Glycine condenses with itself to give peptides, beginning with the formation of glycylglycine: [34] 2 H 3 N ...
The Van Slyke pipette, invented by Donald Dexter Van Slyke, is a graduated pipette commonly used in medical technology with serologic pipettes for volumetric analysis ...
The van Deemter equation is a hyperbolic function that predicts that there is an optimum velocity at which there will be the minimum variance per unit column length and, thence, a maximum efficiency. The van Deemter equation was the result of the first application of rate theory to the chromatography elution process.
Curve of the Michaelis–Menten equation labelled in accordance with IUBMB recommendations. In biochemistry, Michaelis–Menten kinetics, named after Leonor Michaelis and Maud Menten, is the simplest case of enzyme kinetics, applied to enzyme-catalysed reactions of one substrate and one product.
By contrast, at almost the same time, Donald Van Slyke and G. E. Cullen [79] treated the binding step as an irreversible reaction. The Briggs–Haldane equation was of the same algebraic form as both of the earlier equations, but their derivation is based on the quasi- steady state approximation, which is the concentration of intermediate ...