Radiofrequency encoded Only Parahydrogen SpectroscopY

Bussandri, S.; Acosta, Rodolfo H.; Buljubasich, L.

doi:10.1016/j.jmr.2020.106894

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Phd-phip In Combination With Opsy1

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2021

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“…No extra hardware is required. [41] Under these conditions, we were able to filter out most of the thermal background in PHIP experiments and to acquire the signal with a train of 2048 refocusing pulses, rendering Jmultiplets essentially free of artifacts.…”

Section: Phd-phip In Combination With Opsymentioning

confidence: 99%

Discrimination of PHIP Signals Through their Evolution in Multipulse Sequences

et al. 2021

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The antiphase character of the PHIP associated signals after a hydrogenation reaction is particularly sensitive to line broadening introduced by magnetic field inhomogeneities and interferences by the presence of resonance lines steaming from a large amount of thermally polarized spins. These obstacles impose a limitation in the detection of reaction products as well as in the experimental setups. A simple way to overcome these impediments consists of acquiring the signal with a train of refocusing pulses instead of a single r.f. pulse. We present here a number of examples where this multipulse acquisition, denominated PhD-PHIP, displays its potentiality in improving the information related to hyperpolarized spins performed in a sample, where the former parahydrogen nuclei are part of a complex J-coupling network.

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Section: Phd-phip In Combination With Opsymentioning

confidence: 99%