Results 251 to 260 of about 9,530 (292)

SIFT-MS

Selected ion flow tube mass spectrometry (SIFT-MS) is a chromatography-free, direct-analysis technique that is ideally suited to real-time, quantitative analysis of volatile compounds in air at trace concentrations. SIFT-MS utilises highly controlled, soft chemical ionisation – in the form of gas-phase ion–molecule reactions – coupled with mass ...
Vaughan S. Langford, Mark J. Perkins
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Ultra-Trace Real Time VOC Measurements by SIFT-MS for VIAQ

SAE International Journal of Engines, 2017
<div class="section abstract"><div class="htmlview paragraph">Vehicle interior air quality (VIAQ) measurements are currently conducted using the offline techniques GC/MS and HPLC. To improve throughput, speed of analysis, and enable online measurement, specialized instruments are being developed.
Jennifer H. Zhu, Christopher Nones, Yan Li, Daniel Milligan, Barry Prince, Mark Polster, Mark Dearth   +6 more
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Measuring VOCs in Christchurch ambient air : using SIFT-MS technique

2002
The project is aimed at monitoring the volatile organic compounds (VOCs) that may be regarded as undesirable in Christchurch's ambient air. Nine VOCs viz NH3 (ammonia), C2H4 (acetylene), C3H6OH (methanol), C2H5OH (ethanol), CH3CHO (acetaldehyde), C6H6 (benzene), C7H8 (toluene) and C8H10 (xylene) were-selected to be examined diurnally and seasonally ...
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Applications of SIFT-MS to the Environment and Petroleum Exploration

2009
In this project, “selected ion flow tube mass spectrometry” (SIFT-MS), a sensitive analytical technique, reveals potential for the development of applications in the environment and petroleum areas. Many prior applications have shown their potential for analyzing samples in widely disparate areas. Its fast analysis process and high sensitivity gives it
openaire   +2 more sources

SIFT-MS Measurement of VOC Distribution Coefficients in Human Blood Constituents and Urine

Applied Occupational and Environmental Hygiene, 2003
The new technique of selected ion flow tube-mass spectrometry (SIFT-MS) has been applied to the measurement of Henry's Law constants for the volatile organic chemicals o-xylene and trichloroethylene that both have low solubility in aqueous solvents. The method is validated by measurements in water at 298 K using the equilibrium partitioning in closed ...
Paul F, Wilson, Colin G, Freeman, Murray J, McEwan, Randall A, Allardyce, Geoffrey M, Shaw   +4 more
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SIFT-MS Data Analysis

SIFT-MS utilises direct, soft chemical ionisation coupled with mass spectrometric detection, rather than chromatographic separation, to analyse samples with high specificity. This means that SIFT-MS data differ significantly from GC and LC data in that they are a superposition of mass spectra of the different reactive compounds (analytes and matrix ...
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High‐Throughput Analysis of Fruit Ripening by SIFT‐MS

Lebensmittelchemie, 2021
A. Ingendoh, M. Perkins, V. Langford
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Breath Collection Equipment for Clinical Applications with SIFT-MS Instruments

2006
Real time detection of Volatile Organic Compounds (VOCs) using Selected Ion Flow Tube – Mass Spectrometry (SIFT-MS) provides a unique opportunity for research into breath testing for clinical diagnosis. However, before engaging in research into breath analytes as markers of disease, appropriate breath collection methods are required.
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SARIMSAK KOKUSUNUN TAZE VE KURU BİTKİLER İLE SIFT-MS KULLANILARAK DEODORİZASYONU

2021
Garlic (Allium sativum L.) has a very strong odor, which lingers on the breath for approximately a day, after consumption. The deodorization mechanism for garlic odor has been associated with the phenolic content and enzymatic activity of the deodorizing food.
ÖZCAN SİNİR, Gülşah, BARRINGER, Sheryl   +1 more
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Application of similarity coefficients to SIFT-MS data for livestock emission characterization

Biosystems Engineering, 2013
Animal farming emissions from pig and broiler chicken livestock activities were analyzed by means of selected ion flow tube mass spectrometry (SIFT-MS) using full mass scans in the m/z range 15–250 with H3O+, NO+ and O2+ as precursor ions. The generated set of data was used to investigate the similarity between samples using raw experimental SIFT-MS ...
Philippe M. Heynderickx, Katrijn Van Huffel, Jo Dewulf, Herman Van Langenhove   +3 more
openaire   +1 more source