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FRONTAL AFFINITY CHROMATOGRAPHY/MALDI TANDEM MASS SPECTROMETRY
FRONTAL AFFINITY CHROMATOGRAPHY/MALDI TANDEM MASS SPECTROMETRY
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机译:亲和力色谱/ MALDI串联质谱
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摘要
Sol-gel derived monolithic silica columns containing entrapped dihydrofolate reductase were used for frontal affinity chromatography of small molecule mixtures. The output from the column combined with a second stream containing the matrix molecule (HCCA) and was directly deposited onto a conventional MALDI plate that moved relative to the column via a computer controlled x-y stage, creating a semi-permanent record of the FAC run. The use of MALDI MS allowed for a decoupling of the FAC and MS methods allowing significantly higher ionic strength buffers to be used for FAC studies, which allowed for better retention of protein activity over multiple runs.
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