A method of sensor Elements, and a provision for the Detection and / or analysis of compounds present, simultaneously, nuclear quadrupole Resonance and Nuclear magnetic resonance and nuclear quadrupole Double Resonance

摘要

A method for the Detection and / or analysis of compounds present, simultaneously, nuclear quadrupole Resonance and Nuclear Magnetic Resonance, these compounds are a group of Nuclei with spins to able to resonate cuadrupolarmente; and a group of cores of the B spins, capable of Resonate magneticallyWherein Said method comprises: a) a First Magnetic Field H1 Group on the nuclear spins to the H1 Field, oscillating in resonance frequency of said Group of quadrupole Nuclei with spins, and simultaneously on that Group B nuclear spins, others do S second and Third Magnetic Fields,The Second magnetic field is a Magnetic Field H0 which is lit in coincidence with the first Pulse of the oscillating Magnetic Field H1; and being the Third Magnetic FieldA magnetic field that oscillates in the H2 magnetic resonance frequency of the nuclear spins in Group B The Magnetic Field H0; b) turn off the second Magnetic Field H0 when the quadrupole Resonance signal from Said Group of Nuclei with spins is maximal, couple The Signal - to noise ratio of the quadrupole Signal increase.And consequently decrease the minimum volume of the compound can detect and / or Scan and analysis; (c) add the signals detected while H0 is off, in Synchronism with the pulse sequence of excitation for H1; d) re Light The Magnetic Field H0.Once the scanning Stage; (e) repeat Steps (b) to (d) until the signal - noise ratio suitable for Detecting this compound; and (f) to issue an alarm signal in the case of Detection and / or analysis of the following compound in the case of negative Signal.More specifically, the method is related to the Detection and / or analysis of compounds, alkaloids, particularly Explosive, or similar, located in different types of containers, in particular, luggage, Parcels, or similar.Also disclosed is a method for the Detection and / or analysis of compounds present, simultaneously, double quadrupole Resonance, Sensing Elements, and a provision for the Detection and / or analysis of compounds present, simultaneously, or Double nuclear quadrupole Resonance Nuclear quadrupole Resonance and Nuclear magnetic resonance.