Sigma instruments pvt ltd, a specialist in chromatography offers a range of models from tiny mini models to the latest microprocessor based models to suit every application. All the models feature international state of the art technology and have been designed to give high reliable performance. The instruments are made to accept both packed and capillary columns with a wide range of detectors. The simpler models give ease of operation and can carry out all routine analysis accurately. On the other hand, the more sophisticated models provide greater flexibility to go well with various applications in routine or research. With the microprocessor based model, the user now has an instrument, which matches the performance of international models. All models are rugged and can face any day to day challenge most effectively and with minimum downtime. It includes additional features such as sampling valves, column switching, back flushing and a choice of data handling equipment.