amino acid analysis | Environmental XPRT

Articles & Whitepapers

  • The development of cation-exchange chromatography in free amino acids analysis

    The development of cation-exchange chromatography in free amino acids analysis

    Although it was not called a liquid chromatograph, the first such instrument was introduced in late 1959 by Beckman Instruments and was designated the M.S. Amino Acid Analyzer in honour of Moore and Stein. Inject valves had yet to be invented, the buffer switching valves were glass stopcocks and the column temperature was controlled by circulating water baths. Two positive displacement pumps ...

  • o-Phthalaldehyde Reagent

    IntroductionPrimary amines form highly fluorescent adducts when reacted with o-Phthalaldehyde (OPA) and a mercaptan under basic conditions. At a pH>9 and ambient temperature, reaction is generally ...

Equipment & Solutions

  • Amino Acid Analyzer Physiological System
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    Amino Acid Analyzer Physiological System

    Biochrom launches the Biochrom 30+ Series of amino acid analyzers - the gold standard in dedicated amino acid analysis. Clinical laboratories worldwide trust this well documented classical amino acid analysis method based on ion exchange chromatography with post column derivatization with Ninhydrin.This allows both qualitative and quantitative analysis of up to 56 amino acids and derivatives, ...