Results 81 to 90 of about 208,364 (208)

The search for an identification of amino acids, nucleobases and nucleosides in samples returned from Mars [PDF]

The Mars Sample Return mission will provide us with a unique source of material from our solar system; material which could advance our knowledge of the processes of chemical evolution. As has been pointed out, Mars geological investigations based on the
Gehrke, Charles W., Kuo, Kenneth C., Ponnamperuma, Cyril, Stalling, David L., Zumwalt, Robert W.   +4 more
core   +1 more source

Observation of whispering gallery modes in the mid-infrared with a quantum cascade laser: possible applications to nanoliter chemical sensing [PDF]

, 2009
Excitation of the whispering gallery modes (WGM) of a CaF_2 ball resonator is demonstrated at 4.5 micron with a pulsed Quantum Cascade laser. A prism coupling scheme for mid-infrared is described.
Deev, Andrei, Wu, Sheng
core  

Separation Performance of Capillary Gas Chromatography Based on Monohydroxycucurbit[7]Uril Incorporated Into Sol-Gels as the Stationary Phase. [PDF]

Front Chem, 2020
He J, Ran J, Yao J, Zhang L, Wang S, Wang Y, Dong N.   +6 more
europepmc   +1 more source

Development of and fabrication of high resolution gas chromatographic capillary columns [PDF]

Gas chromatographic columns which are used in the trace gas analyzer (TGA) for the space shuttle are coated with a polyoxyethylene lauryl ether. This stationary phase is of medium polarity and has a temperature limit of 160 C.
Zlatkis, A.
core   +1 more source

Binder-jet printing and pressure-controlled infiltration for fabrication of high-temperature, low-dead-volume microfluidic interfaces

Additive Manufacturing Letters
Interfacing is a consistent weak point in the manufacturing of microscale gas chromatography columns. Current techniques for interfacing with microfluidic systems often degrade under high temperatures and thermal cycling and suffer from dead volumes.
Henry D. Davis, James G. Harkness, David K. Hayes, Brian D. Jensen, Richard Vanfleet, Nathan B. Crane, Robert C. Davis   +6 more
doaj   +1 more source

Etude Par Fragmentographie de Masse de la Cinetique Sanguine D'un Anti-Inflammatoire DU F-1594

Journal of Mathematical and Fundamental Sciences, 2019
Sari. Telah dilakukan penetapan kadar plasmatik dari senyawa p bifenil-4, okso-4, metil-2-butirat (F-1594) sebagai salah satu obat anti inflamasi dengan teknik kombinasi kromatografi gas-spektrometri massa.
A. Hanafiah W.S., Badruzzaman S.
doaj  

Analysis of s-triazine herbicides in model systems and samples of groundwater by gas and liquid chromatography [PDF]

Ratarstvo i Povrtarstvo, 2010
In this paper, residues of s-triazine herbicides (Simazine, Atrazine, Amethrine, Promethrine and Azyprothrine) have been determined in samples of model systems and real groundwater samples by gas-chromatography and high performance liquid chromatography.
Kostadinović Ljiljana, Pavkov Sava, Dozet Gordana   +2 more
doaj  

MEMS Mass Spectrometers: the Next Wave of Miniaturization [PDF]

, 2015
Syms, R, Wright, S
core   +1 more source

Nanostructured Silver Coating as a Stationary Phase for Capillary Gas Chromatography. [PDF]

Molecules, 2019
Jiang Q, Xu P, Feng J, Sun M.
europepmc   +1 more source

Full-scale combination of anaerobic digestion and concentration by evaporation in Garrigues (Lleida, Spain): evaluation after 2 years of operation [PDF]

, 2004
Evaporation process is a reliable strategy to manage pig slurry, removing water and recovering nutrients by concentration. The described treatment plant, TRACJUSA, applies the VALPURENTM process, which is based on the combination of anaerobic digestion
Campos Pozuelo, Elena, Flotats Ripoll, Xavier, Palatsi Civit, Jordi, Porras, Silvia, Torres, Mar   +4 more
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