We report a solid phase extraction-liquid chromatography-tandem mass spectrometry(SPE-LC-MS/MS) method for simultaneous determination of five tobacco specific nitrosamines(TSNAs) and three tobacco alk
Many structural biology techniques have recently been incorporated into traditional NMR approaches for studying large and dynamic protein complexes in solution,by providing either extra distance or or
Intracellular environment is complex.The crowding and confinement by the presence of high concentrations of macromolecules(proteins,RNAs and DNAs etc),the variation of pH and redox potential inside ce