OLIS ONLINE LIQUID INJECTION SYSTEM FOR GAS CHROMATOGRAPHY
2Pages

OLIS ONLINE LIQUID INJECTION SYSTEM FOR GAS CHROMATOGRAPHY A non-discriminatory online injection of compounds The OLIS injection system is intended for the introduction, in chromatography, of pressurized liquid samples which may contain very polar, high boiling point or high viscosity analytes. The OLIS valve can accept samples up to 60 bar and can be installed on all GC models, on-line or laboratory, equipped with split/splitless injectors. This valve, very easy to use, can be installed on a new or existing GC and requires little maintenance (change of seals), easily achievable by the operator. Its technical features make it possible to obtain performances identical and even better than those of the conventional automatic injector with syringe. The OLIS valve is composed of a “STEM”, the lower end of which is machined to allow sample circulation. The sample can circulate continuously or be pushed by a syringe for calibrations. The STEM is lowered to the spray chamber by means of a micro-electric motor. At the same time, its tip is heated to high temperature very quickly allowing the “flash” vaporization of the liquid fraction trapped in the calibrated volume. This very simple mode of operation provides surprising analytical results, with very little discrimination between compounds and better repeatability than automatic injection with a syringe. Application fields: Innovation to get more reliability OLIS valve integrates embedded electronic with several checks and diagnostics to ensure high efficiency and the best performances: STEM temperature control, STEM injection position control, number of injections to plan maintenance. LPG, LNG, naphta, condensates ASTM D-2887 Alcohols in hydrocarbons Aromatics Dissolved CO2 Impurities in amina matrix etc.

OLIS VALVE Technical specifications General specifications OLIS valve is installed on top of a GC split/splitless injector Weight (valve): carrier gas flow control module available Dimensions (controller) (mm): H 370; D 300; W 140 Weight (controller): 10 kg remote or auxiliary valve control available. Environmental conditions LPG, LNG online analysis, ASTM D-2887, alcohols in hydrocarbon streams, impurities in benzene, in amina matrix, dissolved CO2 in organic matrix. Relative humidity: CMR compounds analysis in the lab without sample handling Controller specifications Power and comsuption:...