نتایج جستجو برای: uhplc msms

تعداد نتایج: 1945  

2004
Rishabh Mehandru Keith Aliberti Hongen Shen Soohwan Jang S. J. Pearton Fan Ren

InGaAs-based Metal Semiconductor Metal (MSM) Photodetectors were fabricated and tested as photodetectors and Opto-electronic mixers. A comparison of various processing schemes for MSM InAlAs/InGaAs photodetectors on InP substrates was conducted to minimize the dark current. InAlAs Schottky Enhanced Layers (SEL) was employed on the InGaAs-based MSMs to enhance the barrier height to reduce the da...

Journal: :Trends in Analytical Chemistry 2023

Metabolomics is an interdisciplinary field with applications in many areas. Analytes include metabolites involved pathways such as glycolysis, amino acid metabolism, the Krebs cycle, etc. However, these biosynthetic are typically highly polar molecules, which represent a major challenge for chromatographic analysis. Whilst there have been significant efforts to address difficulties determinatio...

Journal: :Molecules 2013
Cindy F Verdu Julia Gatto Ingrid Freuze Pascal Richomme François Laurens David Guilet

The aim of this study was to develop faster and more efficient phenotyping methods for in-depth genetic studies on cider apple progeny. The UHPLC chromatographic system was chosen to separate polyphenolic compounds, and quantifications were then simultaneously performed with a UV-PDA detector and an ESI-triple quadrupole mass analyzer (SRM mode). Both quantification methods were validated for 1...

Journal: :TrAC Trends in Analytical Chemistry 2014

Journal: :Journal of lipid research 2012
Samuel L M Arnold John K Amory Thomas J Walsh Nina Isoherranen

Retinol (vitamin A) circulates at 1-4 μM concentration and is easily measured in serum. However, retinol is biologically inactive. Its metabolite, retinoic acid (RA), is believed to be responsible for biological effects of vitamin A, and hence the measurement of retinol concentrations is of limited value. A UHPLC-MS/MS method using isotope-labeled internal standards was developed and validated ...

2016
Daisuke Saigusa Yasunobu Okamura Ikuko N Motoike Yasutake Katoh Yasuhiro Kurosawa Reina Saijyo Seizo Koshiba Jun Yasuda Hozumi Motohashi Junichi Sugawara Osamu Tanabe Kengo Kinoshita Masayuki Yamamoto

Metabolomics is a promising avenue for biomarker discovery. Although the quality of metabolomic analyses, especially global metabolomics (G-Met) using mass spectrometry (MS), largely depends on the instrumentation, potential bottlenecks still exist at several basic levels in the metabolomics workflow. Therefore, we established a precise protocol initially for the G-Met analyses of human blood p...

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