Pesticide residue detection mass spectrometry technology

Mass spectrography (mass spectrography) is an analytical method that converts samples into moving, electrically charged ions, which are separated and recorded in a magnetic field according to their mass-to-charge ratios

The ion source is one of the three major components of the mass spectrometer.

Gas Chromatography and Mass Spectrometry (GC-MS) is the earliest chromatographic combination instrument developed

Figure 2-7 Mass spectrometry total ion chromatogram for GC-MS detection of various pesticide residues

Mass spectrometry will generally get two graphs

Generally, when doing quantitative analysis, you must first determine the analytical conditions of the substance to be tested, so that the separated substance can be separated better, and a better chromatographic peak can be obtained.

When analyzing the structure of an organic substance, it is usually necessary to select a certain ion of the compound first, and then to characterize the fragment ions through collision-induced dissociation.

Liquid chromatography-tandem mass spectrometry (LC-MS/MS) provides a powerful analysis method for pesticide residue detection, which can effectively separate, qualitatively and quantitatively analyze polar pesticides without derivatization

Related Links: Liquid Chromatography Technology for Pesticide Residue Detection