Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Reexamination Certificate
2005-05-03
2005-05-03
Shrivastav, Brij B. (Department: 2859)
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
C324S309000
Reexamination Certificate
active
06888348
ABSTRACT:
Cycling sidebands arising from broadband decoupling of I-S heteronuclei are separated from the decoupled I spectra investigated in a 2D pulse sequence wherein I excitation50is followed after the interval δ+t1with refocusing π pulse54operating on the I spins. After I excitation50,the JIScoupling is inverted by π pulse52and immediately following the π pulse54,decoupling56is turned on and maintained while signal acquisition in the interval t2is initiated at δ+t1after pulse54.Double FT yields a 2D spectrum with sidebands completely displaced to diagonal locii, or alternatively the time domain data may be accumulated into respective t2locations by effectively summing over t1to yield a single dimensional spectrum free of cycling sidebands.
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Berkowitz Edward H.
Fishman Bella
Shrivastav Brij B.
Varian Inc.
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