| 65780 | |
| Ambient mass spectrometry allows samples to be analyzed in their native state without preparation. Spray-based atmospheric pressure ionization techniques, such as desorption electrospray ionization (DESI) and discontinuous atmospheric pressure introduction (DAPI), ionize samples at ambient pressure. Further improvements to the interface of these systems are needed to increase efficiency of mass spectrometers using ambient sample ionization. Researchers at Purdue University developed a synchronization method that increases the efficiency of spray-based atmospheric pressure ionization sources coupled with miniature mass spectrometers. Synchronized induction shows good performance with over 100-fold improvement in sensitivity, reduced solvent spray flow rate, reduced nebulizing gas usage, 100-fold improvement in sampling efficiency, and quasi-simultaneous recording of positive and negative ion spectra. Advantages: - Increased sampling efficiency - Improved sensitivity - Records negative and positive ion spectra Potential Applications: -Chemical Analysis |
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DIV-Patent
Japan
6307572
Mar 16, 2018
Nov 9, 2015
CON-Patent
United States
9,761,426
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CIP-Patent
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9,500,623
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NATL-Patent
Japan
JP6019037
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CIP-Patent
United States
9,184,036
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CON-Patent
United States
(None)
(None)
Jan 20, 2012
PCT-Patent
WO
(None)
(None)
Jan 20, 2012
NATL-Patent
European Patent
(None)
(None)
Jan 20, 2011
Provisional-Patent
United States
(None)
(None)
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Purdue Office of Technology Commercialization 1801 Newman Road West Lafayette, IN 47906 Phone: (765) 588-3475 Fax: (765) 463-3486 Email: otcip@prf.org |