Source:http://linkedlifedata.com/resource/pubmed/id/12820207
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
13
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pubmed:dateCreated |
2003-6-23
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pubmed:abstractText |
A nine-channel multiplexed electrospray (MUX) liquid chromatography ultraviolet time-of-flight mass spectrometry (LC/UV/TOFMS) system has been used to simultaneously measure accurate masses of eluting components from eight parallel gradient LC columns. Accuracies better than 5 and 10 ppm were achieved for 50 and 80% of samples, respectively, from a single batch analysis of ten plates (960 samples) of a Fmoc-Asp(OtBu)-OH and reserpine mixture. Combinatorial library compounds were analyzed using this parallel high-throughput system in both positive and negative modes to rigorously verify expected products and identify side products. A mass accuracy of 10 ppm root mean square (RMS) is routinely obtained for combinatorial library samples from this high-throughput accurate mass LC/MS system followed by automated data processing. This mass accuracy is critical in revealing combinatorial synthesis problems that would be missed by unit mass measurement.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0951-4198
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pubmed:author | |
pubmed:copyrightInfo |
Copyright 2003 John Wiley & Sons, Ltd.
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pubmed:issnType |
Print
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pubmed:volume |
17
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1425-32
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pubmed:meshHeading |
pubmed-meshheading:12820207-Alanine,
pubmed-meshheading:12820207-Calibration,
pubmed-meshheading:12820207-Chromatography, Liquid,
pubmed-meshheading:12820207-Enkephalin, Leucine,
pubmed-meshheading:12820207-Molecular Weight,
pubmed-meshheading:12820207-Reproducibility of Results,
pubmed-meshheading:12820207-Sensitivity and Specificity,
pubmed-meshheading:12820207-Spectrometry, Mass, Electrospray Ionization,
pubmed-meshheading:12820207-Time Factors
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pubmed:year |
2003
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pubmed:articleTitle |
Parallel high-throughput accurate mass measurement using a nine-channel multiplexed electrospray liquid chromatography ultraviolet time-of-flight mass spectrometry system.
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pubmed:affiliation |
ChemRx Division, Discovery Partners International, 385 Oyster Point Blvd. Suite # 1, South San Francisco, CA 94080, USA. Fang@chemrx.com
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pubmed:publicationType |
Journal Article
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