How to choose an amino acid analyzer

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The content of protein hydrolysate and various free amino acids was analyzed by classical cation exchange chromatography and ninhydrin post-column derivatization. The basic structure of the instrument is similar to that of ordinary HPLC, but the details of amino acid analysis are optimized (such as nitrogen protection, inert piping, on-line degassing, elution gradient and column temperature gradient control, etc. Now there are many manufacturers producing amino acid analyzers, how to Choice is a question that users must consider.

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