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pro vyhledávání: '"Herbert H. Hill"'
Publikováno v:
In International Journal of Mass Spectrometry 2010 298(1):78-90
Autor:
Herbert H. Hill
Publikováno v:
Analytical Chemistry. 94:3020-3021
Autor:
Yu Jianna, Juliet Nwadiuso Okonkwo, Liu Wenjie, Li Wenshan, Herbert H. Hill, Liu Wen, Jing Guoxing
Publikováno v:
Journal of the American Society for Mass Spectrometry. 31(9)
Multiplexing techniques, including the Hadamard transform, are widely used in the recovery of weak signals from high-level noise. Hadamard transform ion mobility spectrometry (HT-IMS), however, can suffer serious drawbacks due to false peaks. False p
Publikováno v:
Analytical Chemistry. 90:4578-4584
Ion mobility spectrometry (IMS) is widely used to characterize compounds of interest (COIs) based on their reduced mobility (K0) values. In an attempt to increase the accuracy and agreement of studies, the most recommended method has been to use a re
Publikováno v:
International Journal for Ion Mobility Spectrometry. 20:57-66
Ion mobility spectrometry (IMS) is widely used to detect and identify chemical warfare agents, narcotics, and explosives in the field based on their reduced mobility (K 0 ) values. Current detection windows for these analytes can only be as narrow as
Determination of E/N Influence on K0 Values within the Low Field Region of Ion Mobility Spectrometry
Publikováno v:
The Journal of Physical Chemistry A. 121:2274-2281
The established theory of ion motion within weak electric fields predicts that reduced ion mobility (K0) remains constant as a function of the ratio of electric field strength to drift gas number density (E/N). However, upon increasing the accuracy a
Publikováno v:
Analytical Chemistry. 89:2800-2806
Although higher resolving powers are often achieved using ambient pressure drift tube ion mobility mass spectrometry (DT-IMMS) systems, lower duty cycles are often required which directly impacts sensitivity. Moreover, the mechanism of ion gating usi
Autor:
Herbert H. Hill, Gopi Krishna Kafle, Jessica A. Tufariello, Lav R. Khot, Haitham Y. Bahlol, Sindhuja Sankaran
Publikováno v:
Engineering in Agriculture, Environment and Food. 9:346-357
Ion mobility spectrometry (IMS) has been employed successfully to detect chemicals such as explosives, illicit drugs, chemical warfare agents, pharmaceutical chemicals, and environmental pollutants. However, applications of IMS in pre- and post-harve
Publikováno v:
International Journal for Ion Mobility Spectrometry. 19:145-153
The introduction of mobility shift reagents (SRs) into the buffer gas of mobility spectrometers yields SR-ion clusters that decrease ion mobilities and allow the separation of overlapping ions. With a large amount of papers on the introduction of SRs