There are several types of mass spectrometry (MS), each with its own strengths and limitations. Some of the most common types of MS include: Gas Chromatography-Mass Spectrometry (GC-MS): This technique combines gas chromatography with mass spectrometry to separate and analyze complex mixtures of volatile compounds. GC-MS is commonly used in forensic science, environmental analysis, and pharmaceutical research. Liquid Chromatography-Mass Spectrometry (LC-MS): This technique combines liquid chromatography with mass spectrometry to separate and analyze complex mixtures of non-volatile compounds. LC-MS is widely used in pharmaceutical research, proteomics, and metabolomics. Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry (MALDI-MS): This technique is used to analyze large biomolecules such as proteins and peptides. The sample is mixed with a matrix material and then irradiated with a laser, which causes the sample to ionize and generate mass spectral data. Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): This technique is used to analyze the elemental composition of a sample, particularly for trace metal analysis. ICP-MS uses an inductively coupled plasma to ionize the sample, which is then analyzed by a mass spectrometer. Time-of-Flight Mass Spectrometry (TOF-MS): This technique measures the time it takes for ions to travel from the ionization source to the detector. The ions are accelerated through a field-free drift tube, and the time-of-flight is measured using a detector. TOF-MS is used in proteomics, metabolomics, and imaging mass spectrometry. Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR MS): This technique uses a magnetic field to trap ions in a cyclotron orbit, which allows for high-resolution mass analysis. FT-ICR MS is used in proteomics, metabolomics, and petroleum analysis.