Keywords: analytical chemistry, biological Samples, chemistry, chromatography, detection, electro ionization spray, electrospray ionization quadrupole time-of-flight mass spectrometry, environmental protection, ESI, ESI-MS, ESI-QTOF-MS, food safety, hazards, LC, LC/ESI-QTOF-MS, LC-MS, liquid chromatography, mass spectrometer, mass spectrometry, matrix effects, MS, MS analysis, QTOF-MS, quadrupole, quinolone, sample preparation methods,, sensitivity, solid phase micro-extraction, SPME, TOF-MS, toxics

Summary: ESI-QTOF-MS has very high resolution and HPLC is being widely used to seperate different molecules. And it is not that easy to determine the target molecules in food for the complex matrix. By using ESI-QTOF-MS coupled to HPLC, we can reduce the matrix effect and increase ... is useful. [Expand Summary] ESI-QTOF-MS has very high resolution and HPLC is being widely used to seperate different molecules. And it is not that easy to determine the target molecules in food for the complex matrix. By using ESI-QTOF-MS coupled to HPLC, we can reduce the matrix effect and increase the sensitivity a lot. So it is a very useful technique. This module will be helpful to the people detecting toxic molecules in food. And those who study some molecules in biological samples will also feel it is useful. [Collapse Summary]