Results 261 to 270 of about 10,542,246 (288)
Some of the next articles are maybe not open access.
Journal of Microbiological Methods, 2006
Samples (210 in total) of broncholaveolar lavages (BALs), obtained from patients hospitalized with pneumonia in various departments of two hospitals, were analysed using the method of solid phase microextraction-gas chromatography (SPME-GC) with FID detection.
Jaroslav, Julák +5 more
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Samples (210 in total) of broncholaveolar lavages (BALs), obtained from patients hospitalized with pneumonia in various departments of two hospitals, were analysed using the method of solid phase microextraction-gas chromatography (SPME-GC) with FID detection.
Jaroslav, Julák +5 more
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Talanta, 2020
A fast non-destructive approach based on the use of portable selected ion flow tube-mass spectrometry (SIFT-MS) was used for the first time to characterize organic materials in archaeological artifacts. The high sensitivity, specificity and selectivity SIFT soft chemical ionization mass spectrometry enabled us to investigate the composition of organic ...
La Nasa J. +5 more
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A fast non-destructive approach based on the use of portable selected ion flow tube-mass spectrometry (SIFT-MS) was used for the first time to characterize organic materials in archaeological artifacts. The high sensitivity, specificity and selectivity SIFT soft chemical ionization mass spectrometry enabled us to investigate the composition of organic ...
La Nasa J. +5 more
openaire +3 more sources
APPLICATIONS OF SELECTED ION FLOW TUBE MASS SPECTROMETRY, SIFT-MS, IN ADDICTION RESEARCH
Breath Analysis for Clinical Diagnosis and Therapeutic Monitoring, 2005Trace gas analysis of exhaled air and liquid headspace using selected ion flow tube mass spectrometry (SIFT-MS) has been developed at Keele University’ and has resulted in the development of clinical applications of the SIFT-MS is unique in that it provides real time, online analysis of breath and of liquid headspace and is non-inva~ive.~ The SIFT-MS ...
R. BLOOR +3 more
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Rapid Communications in Mass Spectrometry, 2020
Rationale The volatile compounds generated by the electrochemical reduction of atmospheric carbon dioxide and nitrogen include isobaric methanol (CH 3 OH) and, potentially, hydrazine (N 2 H
Violetta Shestivska +4 more
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Rationale The volatile compounds generated by the electrochemical reduction of atmospheric carbon dioxide and nitrogen include isobaric methanol (CH 3 OH) and, potentially, hydrazine (N 2 H
Violetta Shestivska +4 more
openaire +3 more sources
Rapid Communications in Mass Spectrometry, 2013
RATIONALE The gold standard for monitoring volatile organic compounds (VOCs) is gas chromatography/mass spectrometry (GC/MS). However, in many situations, when VOC concentrations are at the ppmv level, there are complicating factors for GC/MS.
Vaughan S, Langford +2 more
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RATIONALE The gold standard for monitoring volatile organic compounds (VOCs) is gas chromatography/mass spectrometry (GC/MS). However, in many situations, when VOC concentrations are at the ppmv level, there are complicating factors for GC/MS.
Vaughan S, Langford +2 more
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Rapid Communications in Mass Spectrometry, 2002
Abstract We describe a method by which the concentrations of volatile compounds in the headspace of their dilute aqueous solutions in sealed containers can be determined using on‐line selected ion flow tube mass spectrometry (SIFT‐MS).
Patrik, Spanel +4 more
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Abstract We describe a method by which the concentrations of volatile compounds in the headspace of their dilute aqueous solutions in sealed containers can be determined using on‐line selected ion flow tube mass spectrometry (SIFT‐MS).
Patrik, Spanel +4 more
openaire +2 more sources
Analytical Chemistry, 2009
The rate coefficients and branching ratios of 15 chemical warfare agent precursor and surrogate compounds reacting with H(3)O(+), NO(+), and O(2)(+) have been measured in the laboratory using the selected ion flow tube (SIFT) technique. Measurement of the relevant kinetic parameters for these agents has enabled quantitative monitoring using the SIFT-MS
Gregory J, Francis +2 more
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The rate coefficients and branching ratios of 15 chemical warfare agent precursor and surrogate compounds reacting with H(3)O(+), NO(+), and O(2)(+) have been measured in the laboratory using the selected ion flow tube (SIFT) technique. Measurement of the relevant kinetic parameters for these agents has enabled quantitative monitoring using the SIFT-MS
Gregory J, Francis +2 more
openaire +2 more sources
ANZ Journal of Surgery, 2007
Background: There is some evidence that surgical plume may pose a risk to health professionals, but the risks posed by volatile organic compounds have not been thoroughly investigated.Methods: The composition of volatile organic compounds in diathermy plume produced during surgery was analysed by selected ion flow tube mass spectrometry.Results ...
Andrew R, Moot +6 more
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Background: There is some evidence that surgical plume may pose a risk to health professionals, but the risks posed by volatile organic compounds have not been thoroughly investigated.Methods: The composition of volatile organic compounds in diathermy plume produced during surgery was analysed by selected ion flow tube mass spectrometry.Results ...
Andrew R, Moot +6 more
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Pediatric Pulmonology, 2005
Pseudomonas aeruginosa (PA) is associated with a distinctive smell produced by a combination of volatile compounds (VCs). Selected ion flow tube mass spectrometry (SIFT-MS) provides a novel and rapid methodology for rapid, accurate detection of trace quantities (parts per billion; ppb) of VCs in air. We studied the VCs produced by different isolates of
Will, Carroll +5 more
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Pseudomonas aeruginosa (PA) is associated with a distinctive smell produced by a combination of volatile compounds (VCs). Selected ion flow tube mass spectrometry (SIFT-MS) provides a novel and rapid methodology for rapid, accurate detection of trace quantities (parts per billion; ppb) of VCs in air. We studied the VCs produced by different isolates of
Will, Carroll +5 more
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Marine Environmental Research
The global sulfur cycle is largely influenced by the production of dimethyl sulfide (DMS), which is primarily generated through the enzymatic cleavage of algal dimethylsulfoniopropionate (DMSP). This study presents an efficient and simplified method for analyzing DMSP lyase activity (DLA) by measuring the conversion efficiency of DMSP to DMS using ...
Ki-Tae Park, Young Jun Yoon, Kitack Lee
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The global sulfur cycle is largely influenced by the production of dimethyl sulfide (DMS), which is primarily generated through the enzymatic cleavage of algal dimethylsulfoniopropionate (DMSP). This study presents an efficient and simplified method for analyzing DMSP lyase activity (DLA) by measuring the conversion efficiency of DMSP to DMS using ...
Ki-Tae Park, Young Jun Yoon, Kitack Lee
openaire +2 more sources