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Extraction, pre-high-performance liquid chromatographic purification, and high-performance liquid chromatographic analysis of plant nucleotides



Extraction, pre-high-performance liquid chromatographic purification, and high-performance liquid chromatographic analysis of plant nucleotides



Analytical Biochemistry 183(2): 312-319



Problems encountered in obtaining reliable analytical data by HPLC for the free nucleotide constituents of plant tissues are considered and methods of overcoming them experimentally assessed. Major problems include suppression of residual phosphatase activity during extraction, and removal of pigments, phenolics, alkaloids, and other uv-absorbing nonnucleotides, prior to HPLC. An optimal combination of extraction and pre-HPLC purification techniques is discussed which, in combination with HPLC by anion exchange, yields quantitatively reliable data. The optimized procedure involves extraction with a monophasic mixture of methanol: chloroform:formic acid:water and purification of the nucleotide extract by a batch treatment with poly-N-vinylpyrrolidone, followed by ligand-exchange chromatography. The main HPLC separation uses mu Bondapak NH2 in a linear phosphate gradient and gives good resolution of all the commonly occurring plant nucleotides in a single chromatographic run.

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Accession: 040115135

Download citation: RISBibTeXText

PMID: 2624318

DOI: 10.1016/0003-2697(89)90485-5



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