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Improvement of Spectral Editing in Solids: A Sequence for Obtaining 13CH + 13CH2-Only 13C Spectra

✍ Scribed by Sean T Burns; Xiaoling Wu; Kurt W Zilm

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
109 KB
Volume
143
Category
Article
ISSN
1090-7807

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✦ Synopsis

An improved spectral editing method for solids is described which allows one to obtain a set of subspectra in roughly two-thirds the amount of time as our original CPPI editing method for the same signal to noise. This improvement is afforded by a new pulse sequence that is used to acquire a (13)CH + (13)CH(2) spectrum which has very little (13)CH(3) or nonprotonated carbon contamination. By using this new sequence the (13)CH-only subspectrum is obtained much more efficiently. Criteria for optimizing the signal to noise in the edited subspectra are discussed. Copyright 2000 Academic Press.

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