Compositions and methods for combining protein precipitation and solid phase extraction
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United States of America Patent
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Feb 23, 2021
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Sep 4, 2008
app pub date -
Jan 24, 2008
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Jan 26, 2007
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Abstract
A composition, method and device for the preparation of biological samples for subsequent LC-MS analysis using a combined and concurrent protein precipitation and solid phase extraction (SPE) process is described. Through an integrated combination of protein precipitation, filtration, and SPE using a novel zirconia-coated chromatographic media, interfering compounds, such as proteins and phosphate-containing compounds, are eliminated from the biological samples, affording a higher degree of analyte response during LC-MS analysis.
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