Journal
ANALYST
Volume 137, Issue 11, Pages 2537-2540Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2an16312h
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Funding
- Brazilian Science Foundation's FAPESP
- Brazilian Science Foundation's CNPq
- Brazilian Science Foundation's FINEP
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An exceptionally easy to assemble source for ambient mass spectrometry is described. Based on Venturi easy ambient sonic-spray ionization (V-EASI), the source was further simplified by the use of a can of compressed air which simultaneously provides solution or solvent Venturi self-pumping and continuous, stable and abundant low-noise ion signal via voltage-free sonic-spraying. Further simplification was also attained by the use of inexpensive and readily commercially available parts: a surgical 2-way catheter, an aerosol can of compressed air, a 30 cm long fused-silica capillary and a hypodermic needle. This Spartan'' V-EASI source seems to offer one of the easiest and cheapest ways to make ions for ambient desorption/ionization mass spectrometry analysis of both liquid and solid samples.
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