Concept

Matrix (chemical analysis)

Related publications (16)

Study of Linear Coupling in NEMS

Cantilever beams are used as mass sensing device of chemical analyte by measuring the shift in frequency. However there resolution is linked to their size. As it become increasingly hard to produce smaller device an alternative is to use mode localisation ...

2021

A Computational Framework For Two-Dimensional Random Walks With Restarts

Stefano Massei

The treatment of two-dimensional random walks in the quarter plane leads to Markov processes which involve semi-infinite matrices having Toeplitz or block Toeplitz structure plus a low-rank correction. We propose an extension of the framework introduced in ...

SIAM PUBLICATIONS2020

Siloxane compounds in biogas from manure and mixed organic waste: Method development and speciation analysis with GC-ICP-MS

Christian Ludwig, Debora Foppiano, Mohamed Tarik

A novel method for the determination of linear and cyclic siloxane compounds (L2, L3, D3, D4, D5, and D6) in biogas was developed by combining gas chromatography (GC) with inductively coupled plasma mass spectrometry (ICP-MS). Using a continuous liquid que ...

2020

Development of a modified QuEChERS method for multi-class pesticide analysis in human hair by GC-MS and UPLC-MS/MS

Luiz Felippe De Alencastro, Edouard René Gilbert Lehmann, Christelle Oltramare

The present study assessed the suitability of using QuEChERS procedure for the simultaneous deter- mination and quantification of 37 multi-class pesticides in human hair. Matrix co-eluted material had a large influence on instrumental response sensitivity. ...

Elsevier2018

Quantitative analysis of the crystalline bond lattice of bio-improved soils using micro-computed tomography

Lyesse Laloui, Dimitrios Terzis

The study presents a comprehensive characterization of the fabric of bio-improved soils by introducing an image based quantitative analysis of the crystalline bond lattice, as a means of better understanding and interpreting the observed mechanical respons ...

ISSMGE Publications2017

Quantification of low molecular weight drugs

Anna Ferretti

Therapeutic Drug Monitoring (TDM) is considered one of the most successful approaches to personalized medicine. However, the accuracy requirements on the quantification of drug concentration and the challenges in the dose adjustment limit the application o ...

EPFL2015

Determination of Pt in digested animal plasma and tissues using High Resolution Inductively Coupled Plasma HR-ICP-MS.

Michaël Bensimon

Determination of Pt in digested animal plasma and tissues using High Resolution Inductively Coupled Plasma HR-ICP-MS. Samples were measured in Low Resolution LR mode considering Pt(194), Pt(195), Pt(196), and Pt(198). In order to minimize the matrix effect ...

2014

Electrostatic Spray Ionization Mass Spectrometry Imaging

Hubert Girault, Horst Vogel, Horst Pick, Andreas Stephan Lesch, Liang Qiao, Alexandra Bondarenko, Elena Tobolkina, Xiaoqin Zhong

Imaging samples on a surface by mass spectrometry (MS) requires the combination of MS detection with a scanning mode that enables localized desorption and ionization and/or detection of sample analytes with good spatial resolution. We have developed a new ...

Amer Chemical Soc2014

Practical Considerations for Improving the Productivity of Mass Spectrometry-based Proteomics

Yury Tsybin, Anton Kozhinov, Luca Fornelli, Kristina Srzentic, Unige Anna Laskay, Oxana Upir

Mass spectrometry (MS) is currently the most sensitive and selective analytical technique for routine peptide and protein structure analysis. Top-down proteomics is based on tandem mass spectrometry (MS/MS) of intact proteins, where multiply charged precur ...

Schweizerische Chemische Gesellschaft2013

Validation of a nanoliquid chromatography-tandem mass spectrometry method for the identification and the accurate quantification by isotopic dilution of glutathionylated and cysteinylated precursors of 3-mercaptohexan-1-ol and 4-mercapto-4-methylpentan-2-one in white grape juices

Marc Moniatte, Jérôme Vialaret

A rapid nanoLc-MS/MS method was developed and validated for the simultaneous determination of glutathionylated and cysteinylated precursors of 3-mercapto-hexan-1-ol (3MH) and 4-methyl-4-mercaptopentan-2-one in grape juice using stable isotope dilution assa ...

2010

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