By Marek Domin, Robert Cody, Simon J Gaskell, John Bartmess, Facundo Fernandez, Charles McEwen, Jack A Syage, Zheng Ouyang, Gary Hieftje, Andre Venter, K Hiraoka, Graham Cooks, Akos Vertes, Jen-Taie Shiea, David Muddiman, Sarah Trimpin, Justin M Wiseman, Jac
Ambient ionization has emerged as one of many most well liked and quickest transforming into subject matters in mass spectrometry permitting pattern research with minimum pattern instruction. Introducing the topic and explaining the fundamental techniques and terminology, this e-book will supply a accomplished, detailed treatise dedicated to the topic. Written by way of stated specialists, there are complete descriptions on how new ionization suggestions paintings, with an outline in their strengths, weaknesses and purposes. This name will deliver the reader correct modern, with either functions and conception, and should be appropriate as an academic textual content for these beginning within the box from various disciplines
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A potential of approximately À3500 V is applied to the needle electrode and the perforated counterelectrode is grounded. Although the commercial source applies a negative potential to the needle electrode, the choice of polarity is not critical. Various kinds of electrical discharges were considered for producing metastable atoms and molecules in the DART prototypes, but a DC glow discharge was chosen for the commercial source. A number of factors influence the nature of the DART electrical discharge including geometry, voltage, gas flow and gas composition.
Andrade, J. T. Shelley, W. C. Wetzel, M. R. Webb, G. Gamez, S. J. Ray and G. M. Hieftje, Anal. , 2008, 80, 2646. 73. J. D. Harper, N. A. Charipar, C. C. Mulligan, X. Zhang, R. G. Cooks and Z. Ouyang, Anal. , 2008, 80, 9097. 74. N. Na, M. Zhao, S. Zhang, C. Yang and X. Zhang, J. Am. Soc. , 2007, 18, 1859. 75. Z. Takats, I. Cotte-Rodriguez, N. Talaty, H. Chen and R. G. Cooks, Chem. , 2005, 15, 1950. 76. H. Wang, W. Sun, J. Zhang, X. Yang, T. Lin and L. Ding, Analyst, 2010, 135, 688. 77. L. V. Ratcliﬀe, F.
Distinguishing between true innovation and the simple rebranding of already-reported techniques continues to be a challenge. For these reasons, authors are strongly discouraged to give existing techniques new names. In order to provide a general overview of the most common ambient MS approaches, a brief description of them is given here. 1 One-step Techniques where Desorption occurs by Solid–Liquid Extraction followed by ESI, APPI, Sonic Spray, or CI Ion Production Mechanisms Two groups of techniques, and desorption atmospheric-pressure photoionization (DAPPI) fall in this category.
Ambient Ionization Mass Spectrometry by Marek Domin, Robert Cody, Simon J Gaskell, John Bartmess, Facundo Fernandez, Charles McEwen, Jack A Syage, Zheng Ouyang, Gary Hieftje, Andre Venter, K Hiraoka, Graham Cooks, Akos Vertes, Jen-Taie Shiea, David Muddiman, Sarah Trimpin, Justin M Wiseman, Jac