Sergey Girel
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View article: Liquid chromatography coupled to mass spectrometry for steroid hormones analysis: issues and solutions in sample preparation and method development
Liquid chromatography coupled to mass spectrometry for steroid hormones analysis: issues and solutions in sample preparation and method development Open
View article: Microflow Liquid Chromatography Coupled to Multinozzle Electrospray Ionization for Improved Lipidomics Coverage of 3D Clear Cell Renal Cell Carcinoma
Microflow Liquid Chromatography Coupled to Multinozzle Electrospray Ionization for Improved Lipidomics Coverage of 3D Clear Cell Renal Cell Carcinoma Open
In most bioanalytical laboratories, high-resolution mass spectrometry (HRMS) systems with electrospray ionization (ESI) are hyphenated to liquid chromatography platforms. The latter typically operate under analytical flow (AF; 0.2-1 mL/min…
View article: Microflow liquid chromatography coupled to multinozzle electrospray ionization for improved lipidomics coverage of 3D clear cell renal cell carcinoma
Microflow liquid chromatography coupled to multinozzle electrospray ionization for improved lipidomics coverage of 3D clear cell renal cell carcinoma Open
In most bioanalytical laboratories, high resolution mass spectrometry (HRMS) systems with electrospray ionization (ESI) are hyphenated to liquid chromatography platforms. The latter typically operate under analytical flow (AF; 0.2-1 mL/min…
View article: Microflow liquid chromatography coupled to multinozzle electrospray ionization for improved lipidomics coverage of 3D clear cell renal cell carcinoma
Microflow liquid chromatography coupled to multinozzle electrospray ionization for improved lipidomics coverage of 3D clear cell renal cell carcinoma Open
In most bioanalytical laboratories, high resolution mass spectrometry (HRMS) systems with electrospray ionization (ESI) are hyphenated to liquid chromatography platforms. The latter typically operate under analytical flow (AF) regimes, wit…
View article: Substantial benefits of an inert biphenyl column for the analysis of steroids and their phase II metabolites in biological samples
Substantial benefits of an inert biphenyl column for the analysis of steroids and their phase II metabolites in biological samples Open
Steroids can be used as biomarkers in clinical metabolomics and other fields related to human toxicology. This chemical group is known for its complexity, considering its number of isobaric compounds and the wide variety of phases I and II…
View article: Hyphenation of microflow chromatography with electrospray ionization mass spectrometry for bioanalytical applications focusing on low molecular weight compounds: A tutorial review
Hyphenation of microflow chromatography with electrospray ionization mass spectrometry for bioanalytical applications focusing on low molecular weight compounds: A tutorial review Open
Benefits of miniaturized chromatography with various detection modes, such as increased sensitivity, chromatographic efficiency, and speed, were recognized nearly 50 years ago. Over the past two decades, this approach has experienced rapid…
View article: Comprehensive plasma steroidomics reveals subtle alterations of systemic steroid profile in patients at different stages of prostate cancer disease
Comprehensive plasma steroidomics reveals subtle alterations of systemic steroid profile in patients at different stages of prostate cancer disease Open
View article: Low-polarity untargeted metabolomic profiling as a tool to gain insight into seminal fluid
Low-polarity untargeted metabolomic profiling as a tool to gain insight into seminal fluid Open
View article: Investigation of several chromatographic approaches for untargeted profiling of central carbon metabolism
Investigation of several chromatographic approaches for untargeted profiling of central carbon metabolism Open
Monitoring the central carbon metabolism (CCM) network using liquid chromatography/mass spectrometry (LC-MS) analysis is hampered by the diverse chemical nature of its analytes, which are extremely difficult to analyze using single chromat…
View article: Teg58, a small regulatory RNA, is involved in regulating arginine biosynthesis and biofilm formation in Staphylococcus aureus
Teg58, a small regulatory RNA, is involved in regulating arginine biosynthesis and biofilm formation in Staphylococcus aureus Open
View article: Bioactive Nitrosylated and Nitrated N-(2-hydroxyphenyl)acetamides and Derived Oligomers: An Alternative Pathway to 2-Amidophenol-Derived Phytotoxic Metabolites
Bioactive Nitrosylated and Nitrated N-(2-hydroxyphenyl)acetamides and Derived Oligomers: An Alternative Pathway to 2-Amidophenol-Derived Phytotoxic Metabolites Open
Incubation of Aminobacter aminovorans, Paenibacillus polymyxa, and Arthrobacter MPI764 with the microbial 2-benzoxazolinone (BOA)-degradation-product 2-acetamido-phenol, produced from 2-aminophenol, led to the recently identified N-(2-hydr…
View article: Separation and determination of cysteine enantiomers in plasma after derivatization with 4-fluoro-7-nitrobenzofurazan
Separation and determination of cysteine enantiomers in plasma after derivatization with 4-fluoro-7-nitrobenzofurazan Open
The importance of D-amino acids in mammals associated with enantio-dependent biological functions has been increasingly highlighted. In addition to naturally occurring, D-amino acid supplementation could have a positive biological impact, …
View article: Anti‐microtubule activity of the traditional Chinese medicine herb Northern Ban Lan (<i>Isatis tinctoria</i>) leads to glucobrassicin
Anti‐microtubule activity of the traditional Chinese medicine herb Northern Ban Lan (<i>Isatis tinctoria</i>) leads to glucobrassicin Open
Traditional Chinese medicine (TCM) belongs to the most elaborate and extensive systems of plant‐based healing. The herb Northern Ban Lan ( Isatis tinctoria ) is famous for its antiviral and anti‐inflammatory activity. Although numerous com…
View article: Conversions of Benzoxazinoids and Downstream Metabolites by Soil Microorganisms
Conversions of Benzoxazinoids and Downstream Metabolites by Soil Microorganisms Open
Benzoxazinoids, secondary metabolites of several Poaceae, and some benzoxazinoid downstream metabolites are bioactive compounds that act as allelochemicals and natural pesticides. Since a short lifetime of the substances is crucial to avoi…