Results 241 to 250 of about 623,539 (276)

Ambient Ionization Techniques

2015
Abstract The Food Authorities are intensifying their efforts to assess the risks to human health from the exposure to (natural and anthropogenic) food contaminants. Therefore, regular surveillance studies are required to monitor the increasing number of toxicant residues in food.
Marinella Farré, Damià Barceló
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Forensic applications of ambient ionization mass spectrometry

Analytical and Bioanalytical Chemistry, 2009
This review highlights and critically assesses forensic applications in the developing field of ambient ionization mass spectrometry. Ambient ionization methods permit the ionization of samples outside the mass spectrometer in the ordinary atmosphere, with minimal sample preparation.
Ifa, DR, Jackson, AU, Paglia, G, Cooks, RG   +3 more
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Paper spray ionization for ambient inorganic analysis

Rapid Communications in Mass Spectrometry, 2014
RATIONALE The feasibility of using paper spray ionization as an ambient ionization method for inorganic analysis was investigated. METHODS Aqueous solutions were spotted onto paper triangles and high voltage was applied to induce ...
Robert B, Cody, A John, Dane
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Desorption electrospray ionization and other ambient ionization methods: current progress and preview

The Analyst, 2010
Mass spectrometry allows rapid chemical analysis of untreated samples in the ambient environment. This is a result of recent rapid progress in ambient ionization techniques. The most widely studied of these new methods, desorption electrospray ionization (DESI), uses fast-moving solvent droplets to extract analytes from surfaces and propel the ...
Demian R, Ifa, Chunping, Wu, Zheng, Ouyang, R Graham, Cooks   +3 more
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Ambient Desorption/Ionization

2017
Ion formation under ambient conditions Interfaces for ambient desorption/ionization-mass spectrometry Screening techniques for rapid quality control and safety applications Real time examination of samples during physical ...
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Low-Temperature Plasma Probe for Ambient Desorption Ionization

Analytical Chemistry, 2008
A low-temperature plasma (LTP) probe has been developed for ambient desorption ionization. An ac electric field is used to induce a dielectric barrier discharge through use of a specially designed electrode configuration. The low-temperature plasma is extracted from the probe where it interacts directly with the sample being analyzed, desorbing and ...
Jason D, Harper, Nicholas A, Charipar, Christopher C, Mulligan, Xinrong, Zhang, R Graham, Cooks, Zheng, Ouyang   +5 more
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Ambient Ionization MS for Bioanalysis: Recent Developments and Challenges

Bioanalysis, 2015
Ambient ionization MS has become very popular in analytical science and has now evolved as an effective analytical tool in metabolomics, biological tissue imaging, protein and small molecule drug analysis, where biological samples are probed in a rapid and direct fashion with minimal sample preparation at ambient conditions.
John, Takyi-Williams, Chuan-Fa, Liu, Kai, Tang   +2 more
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Microplasma Discharge Ionization Source for Ambient Mass Spectrometry

Analytical Chemistry, 2009
In this paper, we demonstrate the first use of a microplasma ionization source for ambient mass spectrometry. This device is a robust, easy-to-operate microhollow discharge that enables ambient direct analysis of gaseous, liquid, and solid-phase samples with minimum requirements in terms of operating power and high purity gas consumption.
Joshua M, Symonds, Asiri S, Galhena, Facundo M, Fernández, Thomas M, Orlando   +3 more
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Scanning probe electrospray ionization for ambient mass spectrometry

Rapid Communications in Mass Spectrometry, 2012
RATIONALE Ambient sampling and ionization techniques have been attracting attention in imaging mass spectrometry because they offer the advantage of rapid testing. We have developed a method which exploits the fluid motion of charged solvents for both local sampling and ionization with a single vibrating ...
Yoichi, Otsuka, Sayuri, Shide, Junpei, Naito, Masafumi, Kyogaku, Hiroyuki, Hashimoto, Ryuichi, Arakawa   +5 more
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Ambient Ionization Mass Spectrometry

2014
Ambient ionization has emerged as one of the hottest and fastest growing topics in mass spectrometry enabling sample analysis with minimal sample preparation. Introducing the subject and explaining the basic concepts and terminology, this book will provide a comprehensive, unique treatise devoted to the subject.
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