Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Marian L. Langford"'
Autor:
Marc Andree Weber, Hui Wang, Byron Alderman, Viktor Krozer, Naomi Alexander, Fernando Allona, Ernesto Limiti, Duncan Platt, Asier Ibanez, Ramon Gonzalo, Manfred Hagelen, Marek Schikora, Peter Frijlink, Marian L. Langford
The challenge for any security screening system is to identify potentially harmful objects such as weapons and explosives concealed under clothing. Classical border and security checkpoints are no longer capable of fulfilling the demands of today’s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4f2d4c8f279a34cac6b5ecf37ead4ec
http://hdl.handle.net/2108/180759
http://hdl.handle.net/2108/180759
Publikováno v:
Analytica Chimica Acta. 375:49-63
The decomposition of 2,3-dimethyl-2,3-dinitrobutane in an ion mobility spectrometer operating in the positive and negative modes is described. The results of: varying the concentration of 2,3-dimethyl-2,3-dinitrobutane between 0 and 0.12 mg m−3 in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20bbba4c16656c13b300cbad85c6b293
https://doi.org/10.1016/s0003-2670(98)00513-3
https://doi.org/10.1016/s0003-2670(98)00513-3
Publikováno v:
Analytica Chimica Acta. 374:253-267
The effects of water at a concentration of less than 3 mg m−3, ammonia at 0.61 mg m−3 and dichloromethane at 77.3 mg m−3 on the composition of reactant ion peaks in the positive mode have been studied using an ion mobility spectrometer coupled
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efc21c008fa61dc81ea46164726e4fd5
https://doi.org/10.1016/s0003-2670(98)00463-2
https://doi.org/10.1016/s0003-2670(98)00463-2
Autor:
Marian L. Langford, Nigel J. Clarke, Anthony M. Franklin, John F. J. Todd, David A. Thorner, Andrew D. Penman
Publikováno v:
Rapid Communications in Mass Spectrometry. 9:723-730
This paper describes the use of dynamically programmed scanning in the automation of the acquisition and processing of data using a quadrupole ion trap mass spectrometer. The programs written to carry out the fixedion tandem mass spectrometry experim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::753e38308d598bf93b1b024a61138533
https://doi.org/10.1002/rcm.1290090903
https://doi.org/10.1002/rcm.1290090903
Publikováno v:
Rapid Communications in Mass Spectrometry. 9:107-113
Mass spectral 'ghost peaks' are generated with the ion trap by the superposition of higher order multipole fields which originate through deviations from the pure quadrupole field. In data acquisition, when the amplitude of the RF voltage is tamping
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00437646d8be7edd51b8c27e589db956
https://doi.org/10.1002/rcm.1290090202
https://doi.org/10.1002/rcm.1290090202
Autor:
Marian L. Langford, John F. J. Todd
Publikováno v:
Organic Mass Spectrometry. 28:773-779
The mass spectrum of 2,4,6-trinitrotoluene vapour in air was recorded and the negative-ion fragmentation pathways of the molecular anion were investigated down to the fourth generation. The dissociation of the parent anion led to the production of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d43a6b837fc690150c2ac7462d3524c1
https://doi.org/10.1002/oms.1210280709
https://doi.org/10.1002/oms.1210280709
Autor:
Marian L. Langford, Frank M. Harris
Publikováno v:
Organic Mass Spectrometry. 26:917-919
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eae85897747bad12ea9345bb7ae23d99
https://doi.org/10.1002/oms.1210261022
https://doi.org/10.1002/oms.1210261022