Used APPLIED BIOSYSTEMS API 4000 #9235561 for sale

APPLIED BIOSYSTEMS API 4000 is a high-performance tandem mass spectrometry (MS/MS) equipment designed to study the structure and function of peptides, proteins, and other biomolecules. It utilizes two spectral separation stages that enable multiple sampling of a single sample, providing more detailed analysis than single-stage spectrometers. The system is also capable of aiding in the identification of unknown compounds through accurate-mass measurements and desorption electrospray ionization (DESI). API 4000 utilizes two main components, the triple-quadrupole analyzer (TQA) and the TurboV source. The TQA is a triple-quadrupole device, meaning it contains three quadrupole devices which act as filters to separate ions by mass-to-charge ratio. The first quadrupole is used to select the ions of interest based on their mass-to-charge ratio, while the second and third quadrupole stages further refine the selection and allow multiplexing of signals from different ion species. The TurboV source provides the energy needed to ionize the sample and accelerate it into the TQA. It is capable of both electrospray ionization (ESI) and atmospheric pressure photoionization (APPI). The API 400 also provides additional features for optimal performance and data analysis. It utilizes a pressure limitation device which monitors gas pressure in the source and prevents it from exceeding set parameters. It is also equipped with automatic focus optimization which self-adjusts the electrical fields to optimize the resolution of the instrument. Furthermore, APPLIED BIOSYSTEMS API 4000 includes software for operating the unit, controlling the multiplexing of ions, as well as data presentation and analysis. In conclusion, API 4000 is an advanced tandem mass spectrometry (MS/MS) machine that allows for the analysis of peptides, proteins, and other biomolecules. It utilizes both electrospray ionization (ESI) and atmospheric pressure photoionization (APPI). It also provides features such as pressure limitation and automatic focus optimization for improved performance and data analysis. APPLIED BIOSYSTEMS API 4000 is a powerful tool for scientists studying the structure and function of biological molecules.