title: Optimised NQR pulse technique for the effective detection of Heroin Base.
abstract: The nuclear quadrupole resonance (NQR) method has been applied to Heroin Base (HB) to find an optimised multi-pulse technique for effective detection of HB. Experimental results of applying the proposed spin-locking multi-pulse (SLMP) technique to nitrogen-14 NQR in this sample are presented and convincingly demonstrate as a path towards efficient detection. A detection using a sequence of this character could be achieved over real-world scan volumes for screening of goods. All experiments were carried out at room temperature.
authors.affiliation: Research Division, QRSciences Limited, 8-10 Hamilton Street, Cannington, WA 6107, Australia. tnrudakov@iinet.net.au
authors.forename: T N
authors.initials: TN
authors.lastname: Rudakov
authors.forename: P A
authors.initials: PA
authors.lastname: Hayes
authors.forename: J H
authors.initials: JH
authors.lastname: Flexman
mesh_terms: D004574:Electromagnetic Fields; D003932:Heroin / Q000032:analysis* / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D009584:Nitrogen / Q000032:analysis; D013113:Spin Labels
chemical_list: D013113:Spin Labels; D003932:Heroin; D009584:Nitrogen