Nuclear quadrupole resonance of methamphetamine hydrochloride

作者：Shinohara Junichiro^*; Sato Akaba Hideo; Itozaki Hideo

来源：Solid State Nuclear Magnetic Resonance, 2012, 43-44: 27-31.

DOI：10.1016/j.ssnmr.2012.02.003

• Nuclear quadrupole resonance
• Methamphetamine hydrochloride

The pulsed nuclear quadrupole resonance method was used to search for the NQR frequencies of N-14 in methamphetamine hydrochloride based on quantum chemical estimates. The NQR spectrum peaks were observed at v(+) =1.217 MHz and v(-) =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 v and v(-) 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.

• 出版日期2012-6