Results 191 to 200 of about 50,630 (254)

Centrifugal pipette-tip extraction using pyrolyzed cotton fibers combined with mass spectrometry: High-throughput analysis of methadone and its major metabolite in human urine. [PDF]

Mikrochim Acta
Millán-Santiago J, Lucena R, Cárdenas S.   +2 more
europepmc   +1 more source

Nickel Wall-coated Microreactors for Enhanced Sensitivity and Peak Resolution in Compound-specific Carbon and Nitrogen Isotope Analysis. [PDF]

Anal Chem
Al-Ghoul H, Elsner M.
europepmc   +1 more source

Unwrapping the Dodecaborane Core: Structure, Electronic Properties, and Chemical Reactivity Across the Complete [B₁₂I_<i>n</i>]^- Series (<i>n</i> = 11-1). [PDF]

J Am Chem Soc
Shao Q, Cao W, Knorke H, Behrend KA, Kaur J, Rohdenburg M, Volke D, Kenttämaa HI, Hu Z, Sun Z, Warneke J, Sun H, Wang XB.   +12 more
europepmc   +1 more source

Non-destructive food authentication by vapor-assisted desorption chemical ionization mass spectrometry paired with machine learning. [PDF]

NPJ Sci Food
Wang Y, Gao S, Wu J, Li X, Zhao Y, Zhou L, Hua Y, Kang L, Qiu Z.   +8 more
europepmc   +1 more source

Click-and-Analyze: Automated Pinpoint Ambient Mass Spectrometry with Sheath-Flow Probe Electrospray Ionization. [PDF]

Mass Spectrom (Tokyo)
Li L, Xie Q, Chen LC, Ninomiya S.
europepmc   +1 more source

HCl-selective ionization reactions for improved Cl detection robustness in post-inductively coupled plasma chemical ionization.

J Anal At Spectrom
Afsharsaveh Z, Jorabchi K.
europepmc   +1 more source

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Account: On the Features, Successes and Challenges of Selected Ion Flow Tube Mass Spectrometry

European Journal of Mass Spectrometry, 2013
The major features of the selected ion flow tube mass spectrometry (SIFT-MS) analytical method that was conceived and designed for the analysis, in real time, of air obviating sample collections into bags or extraction by pre-concentration of trace compounds onto surfaces are reviewed.
David Smith, Patrik Spanel
exaly   +3 more sources

Selected Ion Flow Tube Mass Spectrometry for On-Line Trace Gas Analysis in Biology and Medicine

European Journal of Mass Spectrometry, 2007
Selected ion flow tube mass spectrometry, (SIFT-MS), is a technique for simultaneous real-time quantification of several trace gases in air and exhaled breath. It relies on chemical ionization of the trace gas molecules in air/breath samples introduced into helium carrier gas, using H 3 O
Patrik Spanel
exaly   +3 more sources

Selected ion flow tube mass spectrometry

2020
Selected ion flow tube mass spectrometry (SIFT-MS) was first realized as a viable technique for the analysis of trace gases in ambient air in 1996 and its potential for direct online, real-time analysis became immediately obvious. Instrumental development has gone through several phases from a large laboratory-based device to the current mobile ...
Smith, D., Španěl, P. (Patrik), Hanna, G. B., Dweik, R.A.   +3 more
openaire   +2 more sources