Background: Ethnobotanical survey in the rural villages Nepal revealed that fruits of Rhus chinensis Mill. have been using for treatment diarrhea and dysentery. Objective: To evaluate antimicrobial antioxidant effects, identification chemical constituents R. chinensis. Materials Methods: Phytochemical screening was performed on hexane 70% methanolic extracts sample followed by gas chromatograph...

Abstract Polycyclic aromatic hydrocarbons (PAHs) are classified as persistent and carcinogenic organic pollutants. PAHs contamination has been reported in water. Many of relevant regulatory bodies such as EU and EPA have regulated the limit levels for PAHs in drinking water. In this study, 13 priority polycyclic aromatic hydrocarbons (PAHs) were determined in tap water samples of Tehran and wat...

We are now launching the first issue of the first volume of the International Journal of Analytical Mass Spectrometry and Chromatography (IJAMSC). This newly launched journal is an open access journal, whose primary aim is to provide a platform for researchers and practitioners, worldwide, to promote, share, and discuss various new issues and developments in all areas of Mass Spectrometry and C...

Liquid secondary-ion mass spectrometry (liquid SIMS) is an obsolescent ionization technique that revolutionized the analyses of large biological molecules in the 1980s. The term includes fast atom bombardment mass spectrometry (FAB-MS). The technique has been largely superseded by electrospray ionization. This account will cover the history of the technique, the principles of the operation, and...

A novel analytical method, called Liquid Phase Ion Mobility Spectrometry (LiPIMS) was demonstrated, where aqueous phase analytes were ionized and introduced into non-aqueous liquids, transported by an external electric field from the point of generation to a collection electrode. Ions were produced from a unique liquid phase ionization process, called Electrodispersion Ionization. Spectra of an...

Submit Manuscript | http://medcraveonline.com Abbreviations: BAM: Bile Acid Malabsorption; CA: Cholic Acid; CDCA: Chenodeoxycholic Acid; DCA: Deoxycholic Acid; ASBT: Apical Sodium-dependent Bile Acid Transporter; IBS-D: Diarrhea-Predominant Irritable Bowel Syndrome; SeHCAT: Selenium HomotauroCholic Acid Test, FGF: Fibroblast growth factor; GPBAR1: G Protein-coupled Bile Acid Receptor 1; CYP7A1:...

One of the primary goals of the US Geological Survey (USGS) Laboratory in Lawrence, Kansas, is to develop analytical methods for the analysis of herbicide metabolites in surface and ground water that are vital to the study of herbicide fate and degradation pathways in the environment. Methods to measure metabolite concentrations from three major classes of herbicides--triazine, chloroacetanilid...

Submit Manuscript | http://medcraveonline.com Abbreviations: SCs: Synthetic Cannabinoids; Δ-9-THC: Delta9-TetraHydraCannabinol; UHPLC: Ultra High Performance Liquid Chromatography; DAD: Photodiode Array; MS: Mass Spectrometry. GC: Gas Chromatography; DART: Direct Analysis in Real Time; TOF: Time of Flight Spectrometry; NMR: Nuclear Magnetic Resonance; ATR: Attenuated Total Resonance; FTIR: Four...

The Mario Negri Institute has largely contributed in its many years to the development of pharmacokinetics, introducing new analytical techniques such as gas and liquid chromatography combined or not with mass spectrometry.(Sottani C, et al. Structural characterization of monoand dihydroxylated metabolites of paclitaxel in rat bile using liquid chromatography/ion spray tandem mass spectrometry....

Citation: Petras D, Koester I, Da Silva R, Stephens BM, Haas AF, Nelson CE, Kelly LW, Aluwihare LI and Dorrestein PC (2017) High-Resolution Liquid Chromatography Tandem Mass Spectrometry Enables Large Scale Molecular Characterization of Dissolved Organic Matter. Front. Mar. Sci. 4:405. doi: 10.3389/fmars.2017.00405 High-Resolution Liquid Chromatography Tandem Mass Spectrometry Enables Large Sca...