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Direct, trace level detection of explosives on ambient surfaces by desorption electrospray ionization mass spectrometry.
Desorption electrospray ionization (DESI) mass spectrometry is used to detect trace amounts of explosives present on a variety of ambient surfaces in 5-second analysis times without any sample
In situ trace detection of peroxide explosives by desorption electrospray ionization and desorption atmospheric pressure chemical ionization.
TLDR
Density functional theory (DFT) calculations support the suggested fragmentation mechanisms for the complexes and allowed the rapid detection of peroxide explosives in complex matrixes such as diesel fuel and lubricants using single or multiple cation additives (Na(+, K(+), and Li(+) and NH4(+)) in the spray solvent.
Detection of explosives on skin using ambient ionization mass spectrometry.
Single nanogram amounts of the explosives TNT, RDX, HMX, PETN and their mixtures were detected and identified in a few seconds on the surface of human skin without any sample preparation by
Rapid trace detection of triacetone triperoxide (TATP) by complexation reactions during desorption electrospray ionization.
Desorption electrospray ionization (DESI) mass spectrometry is used for rapid, specific and sensitive detection of trace amounts of the notorious explosive TATP present on ambient surfaces by alkali
Non-proximate detection of explosives and chemical warfare agent simulants by desorption electrospray ionization mass spectrometry.
Desorption electrospray ionization (DESI) mass spectrometry is used for the selective and sensitive detection of trace amounts of explosives and chemical warfare agent simulants from ambient surfaces
Desorption electrospray ionization of explosives on surfaces: sensitivity and selectivity enhancement by reactive desorption electrospray ionization.
Desorption electrospray ionization (DESI), an ambient mass spectrometry technique, is used for trace detection of the explosives trinitrohexahydro-1,3,5-triazine (RDX),
Non-proximate detection of small and large molecules by desorption electrospray ionization and desorption atmospheric pressure chemical ionization mass spectrometry: instrumentation and applications
TLDR
Non-proximate versions of the desorption electrospray ionization (DESI) and desOrption atmospheric pressure chemical ionization experiments are shown to allow rapid, sensitive, and selective detection of trace amounts of active ingredients in pharmaceutical drug formulations, illicit drugs, organic salts, peptides, chemical warfare agent simulants, and other small organic compounds.
cis-Diol functional group recognition by reactive desorption electrospray ionization (DESI).
Heterogeneous reactions at a solution/solid interface are utilized in an ambient mass spectrometry experiment to recognize the cis-diol functionality by its selective complexation reaction to form a
Improved detection of low vapor pressure compounds in air by serial combination of single-sided membrane introduction with fiber introduction mass spectrometry (SS-MIMS-FIMS).
TLDR
This simple, sensitive, accurate, robust, selective, and rapid sample preconcentration and introduction technique shows promise for field analysis of low vapor pressure compounds, where analyte concentrations will be extremely low and the compounds are difficult to extract from a matrix like air.
Solid phase micro-extraction in a miniature ion trap mass spectrometer.
TLDR
This simple and rapid analysis method, coupled to a portable mass spectrometer, has been shown to provide a robust, simple, rapid, reproducible, accurate and sensitive (low ppb range) fieldable approach to the effective in situ analysis of VOC in various matrices.
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