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A liquid chromatographic method with electrospray ionization tandem mass spectrometric (LC-ESI-MS-MS) detection and identification is described for the determination of chloramphenicol (CAP) in shrimp tissue. Homogenized shrimp samples were extracted by liquid-liquid extraction using ethyl acetate. d5-Chloramphenicol (5D-CAP) was used as the internal(More)
The problem of precisely controlling the position of a ferromagnetic ball above the ground by levitating it against the force of gravity using an electromagnet is of interest because the magnetic levitation system is open loop unstable and highly nonlinear. We have designed a sliding mode controller based on the concept of a proportional integral switching(More)
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