BECAUSE the sulphur amino-acids are so often the limiting amino-acids of human diets 1,2, a relatively quick and accurate method for their estimation is useful in the determination of the protein ...
Ion exchange separates components in a sample depending on their relative ionic strengths and interaction with the stationary phase. The stationary phase is a charged substance that selectively ...
In this paper, the authors introduce a method that combines ion exchange chromatography with an easier-to-perform, simpler one-step post-column derivatization that is selective to nitrite and visible ...
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