Search Results - "Lajin, Bassam"

Exploring the sulfur species in wine by HPLC-ICPMS/MS by Lajin, Bassam, Goessler, Walter

“…The recent development of the inductively coupled plasma tandem mass spectrometry (ICPMS/MS) offers exciting opportunities for non-metal speciation analysis…”
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The Association between the Urinary Excretion of Trimethylselenonium and Trimethylsulfonium in Humans by Lajin, Bassam, Francesconi, Kevin A

“…Hydrogen sulfide is a signaling molecule that plays important roles in several physiological processes, and its methylation product trimethylsulfonium (TMS) is…”
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Betaine Significantly Improves Multiplex Tetra-Primer ARMS-PCR Methods by Lajin, Bassam, Alachkar, Amal, Alhaj Sakur, Amir

“…The tetra-primer ARMS-PCR method offers significant advantages over the commonly used methods to genotype single nucleotide polymorphisms. It offers fast and…”
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Association between MTHFR C677T and A1298C, and MTRR A66G polymorphisms and susceptibility to schizophrenia in a Syrian study cohort by Lajin, Bassam, Alhaj Sakur, Amir, Michati, Roula, Alachkar, Amal

“…Highlights ► The first association study between the folate/homocysteine metabolic pathway genes and Schizophrenia in a Syrian population. ► The first…”
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Determination of Phosphoethanolamine in Urine with HPLC-ICPMS/MS Using 1,2-Hexanediol as a Chromatographic Eluent by Lajin, Bassam, Goessler, Walter

“…The importance of element-selective detection with inductively coupled plasma mass spectrometry (ICPMS) has been significantly increased in recent years…”
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Simultaneous Determination of Chlorinated and Brominated Acetic Acids in Various Environmental Water Matrixes by High-Performance Liquid Chromatography–Inductively Coupled Plasma Tandem Mass Spectrometry without Sample Preparation by Lajin, Bassam, Goessler, Walter

“…The halogenated acetic acids (HAAs) are generally considered as environmental contaminants and are suspected to pose a major public health concern. The…”
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HPLC-ICPMS/MS shows a significant advantage over HPLC-ICPMS for the determination of perchlorate in ground, tap, and river water by Lajin, Bassam, Goessler, Walter

“…Perchlorate is an environmental contaminant that originates from anthropogenic as well as natural sources. The health effects of perchlorate with respect to…”
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Direct speciation analysis of organophosphorus environmental pollutants in water by HPLC-ICPMS/MS by Lajin, Bassam, Goessler, Walter

“…A new and optimized HPLC-ICPMS/MS method for the simultaneous determination of five of the most common phosphorous environmental pollutants in various water…”
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Fluoroalkylamines: Novel, Highly Volatile, Fast-Equilibrating, and Electrospray Ionization–Mass Spectrometry Signal-Enhancing Cationic Ion-Interaction Reagents by Lajin, Bassam, Goessler, Walter

“…A new class of cationic ion-interaction reagents for reversed-phase chromatography is introduced in the present work. Compounds belonging to a homologous…”
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Fluorinated carboxylic acids as “ion repelling agents” in reversed-phase chromatography by Lajin, Bassam, Goessler, Walter

“…•A dramatic and selective decrease in the retention of organic acids with the FAAs.•An overlooked approach to controlling the selectivity in reversed phase…”
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Variability in Background Urinary Concentrations of the Hydrogen Sulfide Biomarker Thiosulfate by Lajin, Bassam

“…Hydrogen sulfide is a toxic gas at high concentrations but has recently attracted attention as a naturally produced gaseous signaling molecule in various…”
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Catechol-O-methyltransferase Val 108/158 Met polymorphism and breast cancer risk: a case control study in Syria by Lajin, Bassam, Hamzeh, Abdul Rezzak, Ghabreau, Lina, Mohamed, Ali, Al Moustafa, Ala-Eddin, Alachkar, Amal

“…Background Catechol- O -methyltransferase (COMT) inactivates catechol estrogens by methylation and thus may play a protective role against mutations induced by…”
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Sulfur speciation by HPLC-ICPQQQMS in complex human biological samples: taurine and sulfate in human serum and urine by Lajin, Bassam, Goessler, Walter

“…The advent of the triple quadrupole technology to the inductively coupled plasma mass spectrometry (ICPMS) technique has allowed a strong improvement in the…”
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Elution with 1,2-Hexanediol Enables Coupling of ICPMS with Reversed-Pase Liquid Chromatography under Standard Conditions by Lajin, Bassam, Feldmann, Joerg, Goessler, Walter

“…The inductively coupled plasma mass spectrometry (ICPMS) has been attracting increasing attention for many applications as an element-selective chromatographic…”
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Rapid determination of hydrogen sulfide-related metabolites in human urine by UHPLC-ESI-MS/MS with fluorinated ion-pairing reagents by Lajin, Bassam, Obermayer-Pietsch, Barbara, Goessler, Walter

“…[Display omitted] •First application of fluoroalkylamines in LC-ESIMS as ion-pairing reagents.•Direct determination of key hydrogen-sulfide metabolites in…”
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Elution with 1,2-Hexanediol Enables Coupling of ICPMS with Reversed-Phase Liquid Chromatography under Standard Conditions by Lajin, Bassam, Feldmann, Joerg, Goessler, Walter

“…The inductively coupled plasma mass spectrometry (ICPMS) has been attracting increasing attention for many applications as an element-selective chromatographic…”
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Trace determination of the hydrogen sulfide biomarker thiosulfate in human urine by HPLC coupled with element selective ICPMS/MS detection by Lajin, Bassam, Somma, Renato, Obermayer-Pietsch, Barbara, Goessler, Walter

“…Hydrogen sulfide is a toxic gas but also established as a naturally occurring gaseous signaling molecule in humans, playing key physiological roles with…”
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The determination of the Paraxanthine/Caffeine ratio as a metabolic biomarker for CYP1A2 activity in various human matrices by UHPLC-ESIMS/MS by Lajin, Bassam, Schweighofer, Natascha, Goessler, Walter, Obermayer-Pietsch, Barbara

“…The Cytochrome P450 CYP1A2 is a central enzyme in the metabolism of drugs and xenobiotics. The overall activity of this enzyme is influenced by a complex array…”
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Is the water disinfection by-product dichloroacetic acid biosynthesized in the edible mushroom Russula nigricans? by Lajin, Bassam, Braeuer, Simone, Borovička, Jan, Goessler, Walter

“…We report the first halogen speciation analysis study by high performance liquid chromatography coupled with inductively coupled plasma tandem mass…”
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Parallel and comparative non-targeted metabolomic speciation analysis of metalloids and their non-metal analogues by HPLC-ICPMS/MS in mushrooms by Lajin, Bassam, Braeuer, Simone, Goessler, Walter

“…With the introduction of tandem mass spectrometry to inductively coupled plasma mass spectrometry (ICPMS/MS), the potential for non-targeted elemental…”
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