Results 21 to 30 of about 11,070,300 (191)

Repeatability of the measurement of exhaled volatile metabolites using selected ion flow tube mass spectrometry [PDF]

Journal of the American Society for Mass Spectrometry, 2010
Selected ion flow tube mass spectrometry, SIFT-MS, has been used to determine the repeatability of the analysis of volatile metabolites within the breath of healthy volunteers, with emphasis on the influence of sampling methodology. Baseline instrument specific coefficients of variability for examined metabolites were as follows: acetone (1%), ammonia (
Boshier, Piers R., Marczin, Nandor, Hanna, George B.   +2 more
openaire   +2 more sources

Breath acetone concentration decreases with blood glucose concentration in type I diabetes mellitus patients during hypoglycaemic clamps [PDF]

, 2009
Conventional wisdom is that breath acetone may be markedly elevated in type 1 diabetes, but that this only occurs during poor blood glucose control and/or intercurrent illness.
Evans, Mark, Hoashi, Shu, Turner, Claire, Walton, Christopher, Christopher Walton, Mark Evans, Claire Turner, Shu Hoashi   +7 more
core   +1 more source

Sniffing Out Urinary Tract Infection—Diagnosis Based on Volatile Organic Compounds and Smell Profile

Biosensors, 2020
Current available methods for the clinical diagnosis of urinary tract infection (UTI) rely on a urine dipstick test or culturing of pathogens. The dipstick test is rapid (available in 1–2 min), but has a low positive predictive value, while culturing is ...
Valentin-Mihai Dospinescu, Akira Tiele, James A. Covington   +2 more
doaj   +1 more source

The feeding tube of cyst nematodes:characterisation of protein exclusion [PDF]

, 2014
Plant parasitic nematodes comprise several groups; the most economically damaging of these are the sedentary endoparasites. Sedentary endoparasitic nematodes are obligate biotrophs and modify host root tissue, using a suite of effector proteins, to ...
Jones, John T., Ault James R., John T Jones, Eves-van den Akker, Sebastian, James R. Ault (515791), Alison E Ashcroft, Jones John T., Urwin, Peter E., Jones, JT, Catherine J Lilley, Eves-van den Akker Sebastian, Eves-van den Akker, S, Catherine J. Lilley (182995), Ashcroft, Alison E., Lilley Catherine J., Sebastian Eves-van den Akker, Urwin Peter E., John T. Jones (207247), Ault, James R., James R Ault, Peter E. Urwin (183000), Ashcroft, Alison E, Lilley, Catherine J., Ault, JR, Alison E. Ashcroft (515792), Ashcroft, AE, Ashcroft Alison E., Sebastian Eves-van den Akker (515790), Lilley, CJ, Urwin, PE, Peter E Urwin   +30 more
core   +1 more source

Mass spectrometry of alkylbenzenes and related compounds. Part I. Gas-phase ion chemistry of alkylbenzene radical cations [PDF]

, 1990
Kuck D. Mass spectrometry of alkylbenzenes and related compounds. Part I. Gas-phase ion chemistry of alkylbenzene radical cations. Mass Spectrometry Reviews.
Dietmar Kuck, Kuck, Dietmar
core   +1 more source

Sub-parts per billion detection of trace volatile chemicals in human breath using Selected Ion Flow Tube Mass Spectrometry

BMC Research Notes, 2008
Background Selected ion flow tube mass spectrometry (SIFT-MS) allows the real time quantification of trace gases in air. Due to its tolerance of high humidity levels the technique is particularly suited to the chemical analysis of breath.
Ross Brian M
doaj   +1 more source

Mass spectrometry of alkylbenzenes and related compounds. Part II. Gas phase ion chemistry of protonated alkylbenzenes (alkylbenzenium ions) [PDF]

, 1990
Kuck D. Mass spectrometry of alkylbenzenes and related compounds. Part II. Gas phase ion chemistry of protonated alkylbenzenes (alkylbenzenium ions). Mass Spectrometry Reviews.
Kuck, Dietmar, Dietmar Kuck
core   +1 more source

The SIFT-MS fingerprint of Vitis vinifera L. cv. Syrah berries is stable over the second part of maturation under warm conditions of climate

OENO One, 2022
Wine grape breeding for fungal resistance has been very dynamic worldwide over the last decade. The quick phenotyping of genotype quality traits, including aroma composition, remains challenging.
Olivier GEFFROY, Thomas Baerenzung dit Baron, Olivier Yobrégat, Marie Denat, Valérie Simon, Alban Jacques   +5 more
doaj   +1 more source

Quantification of polyphosphoinositides using selected ion monitoring electrospray mass spectrometry

, 1995
Polyphosphoinositides (PIP) and (PIP2) show prominent negative singly and doubly charged deprotonated molecules in electrospray mass spectrometry.
Jergil, Bengt,, Odham, G, Lund University., Michelsen, P   +3 more
core   +2 more sources

SIFT-MS for Livestock Emission Characterization: Application of Similarity Coefficients

Chemical Engineering Transactions, 2012
SIFT-MS (selected ion flow tube mass spectrometry) is used to construct libraries for emissions from pig and broiler farming activities. Libraries are based on full mass scans in m/z range 15 to 250 using HO+, NO+ and O2 precursor ions.
P. Heynderickx, K. Van Huffel, J. Dewulf, H. Van Langenhove   +3 more
doaj   +1 more source