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231223s2008 xx |||||o 00| ||eng c |
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|a 10.1002/mrc.2260
|2 doi
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|a pubmed24n0608.xml
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|a eng
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1 |
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|a Martin, Gary E
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Multistep correlations via covariance processing of COSY/GCOSY spectra
|b opportunities and artifacts
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| 264 |
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|c 2008
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 29.12.2008
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|a Date Revised 07.10.2008
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|a published: Print
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|a Citation Status MEDLINE
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|a 2008 John Wiley & Sons, Ltd.
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|a Long-range homonuclear coupling pathways can be observed in COSY or GCOSY spectra by the acquisition of spectra with larger numbers of increments of the evolution period, t(1), than would normally be used. Alternatively, covariance processing of COSY-type spectra acquired with modest numbers of t(1) increments, allows the observation of multistage correlations. In this work results obtained from covariance-processed GCOSY spectra are fully analyzed and compared to normally processed COSY and 80 ms TOCSY spectra. Multistage or 'RCOSY-type' correlations are observed when remote protons both exhibit correlations to the same coupling partner e.g. A --> B and B --> C gives rise to an A --> C correlation. In the strict sense, RCOSY-type responses are artifacts albeit providing useful information. Nonbeneficial artifact correlations are observed when protons couple to other protons that overlap or partially overlap. The origin of artifact responses is also analyzed
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|a Journal Article
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1 |
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|a Hilton, Bruce D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Blinov, Kirill A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Williams, Antony J
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Magnetic resonance in chemistry : MRC
|d 1985
|g 46(2008), 11 vom: 20. Nov., Seite 997-1002
|w (DE-627)NLM098179667
|x 1097-458X
|7 nnns
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| 773 |
1 |
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|g volume:46
|g year:2008
|g number:11
|g day:20
|g month:11
|g pages:997-1002
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|u http://dx.doi.org/10.1002/mrc.2260
|3 Volltext
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|d 46
|j 2008
|e 11
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|h 997-1002
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