Zobrazeno 1 - 10
of 16
pro vyhledávání: '"J. R. Valentin"'
Publikováno v:
Journal of Chromatography A. 843:147-162
Gas chromatography has proven to be a very useful analytical technique for in situ analysis of extraterrestrial environments as demonstrated by its successful operation on spacecraft missions to Mars and Venus. The technique is also one of the six sc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15957fa39cb034e8efbb0207718cdcda
https://doi.org/10.1016/s0021-9673(98)00947-9
https://doi.org/10.1016/s0021-9673(98)00947-9
Publikováno v:
Analytica Chimica Acta. 324:29-36
Two alternative input sequences are commonly employed in correlation chromatography (CC). They are sequences derived according to the algorithm of the feedback shift register (i.e., pseudo random binary sequences (PRBS)) and sequences derived by usin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ff9366ca8ec042b862656b0ad5d8fe5
https://doi.org/10.1016/0003-2670(95)00584-6
https://doi.org/10.1016/0003-2670(95)00584-6
Publikováno v:
Analytica Chimica Acta. 299:29-36
The concept of a sample retention column that preserves the true time profile of an analyte of interest is studied. This storage system allows for the detection to be done at convenient times, as opposed to the nearly continuous monitoring that is re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d25f2619d94ebeda0d8c502325617b90
https://doi.org/10.1016/0003-2670(94)00306-8
https://doi.org/10.1016/0003-2670(94)00306-8
Publikováno v:
Journal of Chromatography A. 518:199-206
Results are presented from a study in which a continuously changed gaseous sample was monitored by multiplex gas chromatography (MGC), using the exponential dilution (ED) technique of Ritter and Adams (1976) to change the composition and concentratio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3df854a101c32c176048041a606d594
https://doi.org/10.1016/s0021-9673(01)93175-9
https://doi.org/10.1016/s0021-9673(01)93175-9
Publikováno v:
Advanced Microdevices and Space Science Sensors.
Advanced microdevices for the exploration of the solar system have become increasingly important in the current environment of fiscal constraints and payload size limitations. The Discovery-class missions being proposed for future exploration, while
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e5f0a31f0aa88d1af7e558efbd3e36e
https://doi.org/10.1117/12.187464
https://doi.org/10.1117/12.187464
Publikováno v:
Journal of high resolution chromatography : HRC. 13
Selective thermal modulation (STM) is a technique which produces a concentration-dependent pulse by selectively modulating a sample in a gas stream. Several types of modulation techniques, both chemical and physical, using adsorption, decomposition,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::763444cff688dd0f94d433b33d74a595
https://pubmed.ncbi.nlm.nih.gov/11538483
https://pubmed.ncbi.nlm.nih.gov/11538483
Publikováno v:
Origins of Life and Evolution of the Biosphere. 19:39-55
Important prebiotic organic compounds might have been transported to Earth in dust or produced in vapor clouds resulting from atmospheric explosions or impacts of comets. These compounds coalesced in the upper atmosphere with particles ejected from c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af137d872a129f088aa0b4b77e70b05f
https://doi.org/10.1007/bf01808286
https://doi.org/10.1007/bf01808286
Publikováno v:
Journal of High Resolution Chromatography. 5:269-271
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb74316c1dfe979a4583ebb1bcac6f2e
https://doi.org/10.1002/jhrc.1240050510
https://doi.org/10.1002/jhrc.1240050510
Publikováno v:
Military medicine. 147(8)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::ecd41a04062a48d912818c5e9b26d36a
https://pubmed.ncbi.nlm.nih.gov/6817207
https://pubmed.ncbi.nlm.nih.gov/6817207
Publikováno v:
Analytical chemistry. 57(6)
A multiplex gas chromatographic technique for the determination of methane in ambient air over extended periods is reported. A modest gas chromatograph which uses air as the carrier gas was modified by adding a silver oxide sample modulator for multi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99c3af0b40cd29158a9292bd385fbb07
https://pubmed.ncbi.nlm.nih.gov/11536559
https://pubmed.ncbi.nlm.nih.gov/11536559