https://tie-2signaling.com/ind....ex.php/prevention-in
Preconcentration of this analyte is a good process to lower the recognition limit of current sensors. A nanoporous silica (pSiO2) substrate had been assessed as a preconcentrator for gas-phase 2,3-dimethyl-2,3-dinitrobutane (DMN, a volatile detection taggant included by law to synthetic explosives. After collection in pSiO2, the DMNB vapor had been thermally desorbed at 70 °C into a gas chromatography-mass spectrometry sorbent tube. This is examined when it comes t
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