Results 51 to 60 of about 11,070,300 (191)

Methods for structural characterisation of Quillaja saponins by electrospray ionisation ion trap multiple-stage mass spectrometry [PDF]

, 2008
This thesis describes methods for structural classification of Quillaja saponins based on high performance liquid chromatography hyphenated electrospray ionisation ion trap multiple-stage mass spectrometry, in combination with multivariate analysis ...
Bankefors, Johan
core   +1 more source

Quantification by SIFT-MS of volatile compounds produced by the action of sodium hypochlorite on a model system of infected root canal content. [PDF]

PLoS ONE, 2018
Root canal irrigation with sodium hypochlorite (NaOCl) is an indispensable part of the chemomechanical preparation of infected root canals in Endodontology.
Konstantinos Ioannidis, Sadia Niazi, Sanjukta Deb, Francesco Mannocci, David Smith, Claire Turner   +5 more
doaj   +1 more source

Quantitative Analysis of NDMA in Drug Products: A Proposed High-Throughput Approach Using Headspace–SIFT-MS

AppliedChem
Since the initial 2018 recall of angiotensin receptor blockers due to unacceptable levels of mutagenic N-nitrosodimethylamine (NDMA) impurity, numerous drug products delivering diverse active pharmaceutical ingredients (APIs) have been recalled ...
Mark J. Perkins, Colin J. Hastie, Vaughan S. Langford   +2 more
doaj   +1 more source

Noninvasive monitoring of fibre fermentation in healthy volunteers by analyzing breath volatile metabolites: lessons from the FiberTAG intervention study

Gut Microbes, 2021
The fermentation of dietary fibre (DF) leads to the production of bioactive metabolites, the most volatile ones being excreted in the breath.
Audrey M. Neyrinck, Julie Rodriguez, Zhengxiao Zhang, Benjamin Seethaler, Florence Mailleux, Joeri Vercammen, Laure B. Bindels, Patrice D. Cani, Julie-Anne Nazare, Véronique Maquet, Martine Laville, Stephan C. Bischoff, Jens Walter, Nathalie M. Delzenne   +13 more
doaj   +1 more source

Quantification of character-impacting compounds in Ocimum basilicum and 'Pesto alla Genovese' with selected ion flow tube mass spectrometry

, 2012
Basil (Ocimum basilicum) is an important flavourant plant which constitutes the major ingredient of the pasta sauce 'Pesto alla Genovese'. The characteristic smell of basil stems mainly from a handful of terpenoids (methyl cinnamate, eucalyptol, linalool
Amadei G., Ross B. M.
core   +1 more source

Kinetic Measurements of Cl Atom Reactions with C₅–C₈ Unsaturated Alcohols

Atmosphere, 2020
The reactions of five structurally similar unsaturated alcohols, i.e., (Z)-2-penten-1-ol, (E)-2-hexen-1-ol, (E)-3-hexen-1-ol, (Z)-3-hexen-1-ol, and 1-octen-3-ol, with Cl atoms in the gas phase, were investigated at 296 ± 2 K and 1 atm by the ...
Asma Grira, Cornelia Amarandei, Manolis N. Romanias, Gisèle El Dib, André Canosa, Cecilia Arsene, Iustinian Gabriel Bejan, Romeo Iulian Olariu, Patrice Coddeville, Alexandre Tomas   +9 more
doaj   +1 more source

Headspace-Selected Ion Flow Tube Mass Spectrometry Workflows for Rapid Screening and Quantitation of Hazardous Volatile Impurities in Personal Care Products

Analytica
Personal care products (PCPs) are intended for regular application by consumers and therefore assuring the safety of these products is very important. Recently, benzene contamination has been highlighted in certain PCPs.
Mark J. Perkins, Colin J. Hastie, Vaughan S. Langford   +2 more
doaj   +1 more source

Use of the Analysis of the Volatile Faecal Metabolome in Screening for Colorectal Cancer.

PLoS ONE, 2015
Diagnosis of colorectal cancer is an invasive and expensive colonoscopy, which is usually carried out after a positive screening test. Unfortunately, existing screening tests lack specificity and sensitivity, hence many unnecessary colonoscopies are ...
Claire A Batty, Michael Cauchi, Célia Lourenço, John O Hunter, Claire Turner   +4 more
doaj   +1 more source

In vitro discrimination of wound-associated bacteria by volatile compound profiling using selected ion flow tube-mass spectrometry [PDF]

, 2017
© 2017 The Society for Applied Microbiology Aims: To determine if bacterial species responsible for clinically relevant wound infection produce specific volatile profiles that would allow their speciation. Methods and Results: Selected ion flow tube-mass
Reynolds, Darren M., Young, Amber, Lovering, A. M., Slade, Elisabeth A., Thorn, R. M.S., R.M.S. Thorn, A.M. Lovering, A. Young, D.M. Reynolds, E.A. Slade   +9 more
core   +1 more source

Sustainability of selected ion flow tube mass spectrometry (SIFT-MS): the case of breath analysis

Talanta
The growing focus on sustainability in analytical chemistry calls for systematic evaluation of environmental, practical and economic aspects of all workflows. Selected ion flow tube mass spectrometry (SIFT-MS) is a real-time technique for volatile organic compound (VOC) detection, widely applied in breath analysis.
Ilaria Belluomo, Mark J. Perkins, Patrik Spanel, George B. Hanna, Vaughan S. Langford   +4 more
openaire   +2 more sources