LC-MS / LC-MS/MS

LC-MS and LC-MS/MS systems combine the separation power of liquid chromatography (LC) with the detection capabilities of mass spectrometry (MS), providing highly sensitive and selective analysis of complex samples. This technique works by first separating individual components within a sample using HPLC or UPLC, then introducing them to the mass spectrometer where they are ionized and separated based on their mass-to-charge ratio. This data enables both qualitative and quantitative analysis, identifying unknown compounds and determining their concentrations. LC-MS/MS adds a second stage of mass analysis, enhancing sensitivity and selectivity for targeted analyses in complex matrices. These systems support various workflows, including proteomics, metabolomics, and pharmaceutical analysis, and often incorporate advanced software for data acquisition, processing,... + More

LC-MS and LC-MS/MS systems combine the separation power of liquid chromatography (LC) with the detection capabilities of mass spectrometry (MS), providing highly sensitive and selective analysis of complex samples. This technique works by first separating individual components within a sample using HPLC or UPLC, then introducing them to the mass spectrometer where they are ionized and separated based on their mass-to-charge ratio. This data enables both qualitative and quantitative analysis, identifying unknown compounds and determining their concentrations. LC-MS/MS adds a second stage of mass analysis, enhancing sensitivity and selectivity for targeted analyses in complex matrices. These systems support various workflows, including proteomics, metabolomics, and pharmaceutical analysis, and often incorporate advanced software for data acquisition, processing, and interpretation. Leading manufacturers like Thermo Fisher Scientific, Agilent Technologies, Waters Corporation, and SCIEX offer a range of LC-MS and LC-MS/MS instruments to suit different application needs. These powerful analytical tools are widely used across various scientific disciplines, from environmental monitoring and food safety testing to drug discovery and development. Common applications include identifying and quantifying pesticides in food, analyzing pharmaceutical compounds in biological samples, and characterizing proteins in complex mixtures. Techniques such as tandem mass spectrometry (MS/MS), selected reaction monitoring (SRM), and multiple reaction monitoring (MRM) are frequently employed for targeted analyses and quantitative measurements, providing high sensitivity and selectivity even in complex matrices. Researchers often combine LC-MS/MS with other sample preparation techniques like solid-phase extraction (SPE) to further purify and concentrate target analytes, enhancing overall analytical performance. Instruments like the Thermo Scientific Orbitrap and the Agilent Triple Quadrupole LC/MS systems offer cutting-edge technology for these advanced research applications. - Less