LCMS analysis

A sensitive and specific liquid chromatography-tandem mass spectrometry (LCMS/MS) method was developed for the simultaneous analysis of 4 compounds used for treating hypertension as adulterants in herbal products. The method was validated in terms of selectivity, linearity, accuracy, limit of detection (LOD), limit of quantitation (LOQ), and precision in accordance with AOAC and ICH guidelines.

11p viwolverine 11-07-2023 11 5   Download

Two naphthalene pyrazole ligands were synthesized using KOH/DMSO and Cu catalyst and characterized with FT-IR, ESIMS, 1H, and 13C NMR spectroscopies. The crystal structures of 1-(2-methylnaphthalen-1-yl)-1H-pyrazole (MeNap-Pz) ligand have been determined with X-ray crystal structure analysis. Reaction of the ligands with Cu(NO3)2x3.5H2O gave two new complexes and characterized with magnetic susceptibility, molar conductance, FT-IR, LCMS-MS, ICP-OES, NMR, thermogravimetric analysis, and ESR spectra.

24p tudichquannguyet 29-11-2021 17 0   Download

DEHP (di-ethyl hexyl phthalate) is widely used as a plasticizer and it adversely affects humans. In this study, one of the promising DEHP-degrading strain T28 had been selected among isolated pure bacterial strain from rubbish landfill soil near the hospital area, Patna. The bacterial strain T28 was capable of consuming DEHP as a sole source of carbon and energy. By analysing morphological, biophysical, biochemical characteristics, gram staining technique followed by the analysis of 16s rRNA phylogenetic studies, the strain was identified as Bacillus subtilis (Genbank Accession no. CPO230367).

9p caygaocaolon6 30-07-2020 17 1   Download