A5018318307- Mining and Resource Management
- Antibiotic Use and Resistance
- Alcoholism and Thiamine Deficiency
- Metabolomics and Mass Spectrometry Studies
- Pharmaceutical Economics and Policy
- Geochemistry and Geologic Mapping
- Pharmaceutical Quality and Counterfeiting
- Metabolism and Genetic Disorders
- Heavy metals in environment
National Institute of Nutrition
2021-2022
A method for the simultaneous determination of seven B-group vitamers including thiamine, riboflavin, nicotinamide, niacin, pyridoxine, pyridoxal, and pyridoxamine in nutritional products by using enzymatic digestion followed LC-MS/MS quantification was studied. The conditions such as MS transitions, mobile phase programs, ammonium formate buffer concentrations, sample treatment procedures (e.g., concentrations solution, temperature, time) were investigated. analytical performance evaluated...
Phosphodiesterase type 5 inhibitors (PDE-5i) are the first-line medication for oral erectile dysfunction, which used according to prescription of doctors. However, these substances have been found illegally in supplementary foods. The quality and safety dietary supplements enhancing male sexual performance questioned, raising need continual development analytical methods. Liquid chromatography coupled with high-resolution mass spectrometry has become one most effective methods identify...