Nuclear quadrupole resonance of methamphetamine hydrochloride

Solid State Nuclear Magnetic Resonance
Junichiro ShinoharaHideo Itozaki

Abstract

The pulsed nuclear quadrupole resonance method was used to search for the NQR frequencies of (14)N in methamphetamine hydrochloride based on quantum chemical estimates. The NQR spectrum peaks were observed at ν(+)=1.217 MHz and ν(-)=0.654 MHz. The temperature dependences of the NQR frequencies and relaxation properties were investigated for the purpose of stand-off sensing of illicit drugs. The NQR frequency shifts for ν(+) and ν(-) were approximately 0.22 kHz/K and 0.10 kHz/K, respectively, around room temperature. The spin-lattice relaxation times and spin-phase memory times were 8.3 ms-10.0 ms and 0.65 ms -0.86 ms, respectively.

References

Aug 30, 2006·Solid State Nuclear Magnetic Resonance·Go Ota, Hideo Itozaki
Mar 18, 2008·Solid State Nuclear Magnetic Resonance·T N RudakovJ H Flexman
Jan 1, 2008·Acta Crystallographica. Section E, Structure Reports Online·Patrick HakeyTimothy Korter
Sep 20, 2011·Solid State Nuclear Magnetic Resonance·Junichiro ShinoharaHideo Itozaki

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Citations

Jun 25, 2013·Journal of Magnetic Resonance·Alan Gregorovič, Tomaž Apih
Oct 23, 2020·Scientific Data·Kamal ChoudharyKaren L Sauer
Oct 9, 2014·Solid State Nuclear Magnetic Resonance·Hideo Sato-Akaba

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