Device and method for quickly and non-destructively identifying aged grains of different years
An aging and fast technology, applied in measuring devices, material analysis by electromagnetic means, instruments, etc., can solve the problems of large individual differences in testers, limited sensitivity, sample damage, etc., and achieve the effect of rapid and non-destructive identification.
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[0053] Aiming at the examination of the performance of a device and method for quickly and non-destructively identifying aged grains of different years described in the present invention, the experiment took aged rice of four different years (respectively 2011, 2012, 2013 and 2014) as objects , use the online analysis device to analyze the sample gas products released by them online, and obtain their characteristic spectra, so as to realize rapid and non-destructive identification. The flow rate of high-purity nitrogen gas entering the sample bottle is set to 100mL / min, and the mass of the aged grain sample used is 1.0g. In view of the complexity of the released sample gas, the vacuum ultraviolet lamp is used as the ion source, and the photon energy emitted by it is 10.6eV, which can ionize most organic substances, and the obtained characteristic spectrum is simple, mainly molecular ions and fragment ions of the substance Rarely, the air pressure in the ionization zone is main...
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