Gas Chromatagraph with Fast Response

The Calidus 301 is capable of ultra-fast analysis, 10 to 50 times faster than conventional lab or process GCs. Using two columns in parallel enables a wider range of capabilities when the optimum column and detectors are selected for a particular application. Model 301 is made up of 5 modules: a sample processing unit containing a "Y split" valve; 2 x column module (choice of columns available); and 2 x detectors (either flame ionisation (FID), flame photometrics (FPD) or thermal conductivity (TCD)). It can be used in the laboratory, at line, in the field, or on line to measure almost any gas, and hydrocarbons up to C44 A single Calidus™ micro GC is capable of monitoring VOCs in less than 20 seconds. The Calidus series of micro GCs uses ground breaking technology in the form of resistively heated columns. With the stainless tube being used as the heater, the traditional ovens for columns can be removed, so the system has a footprint less than half of a research grade GC. However, it has the capacity to do the work of 4 to 5 research grade GCs, which makes it the leading choice for gas analysis equipment and a cost effective measurement method. All the Calidus GCs have a split/splitless injection port suitable for both gas and liquid samples. Samples may be inserted using a syringe and the septum injection port, or an optional gas, liquid or headspace sampler may be connected to the inlet port. The Calidus GCs may also be used with automated sampling valves. In the 301, the sample is delivered to two independent columns and detectors. In the Calidus 301, these two measurement trains run in parallel with each column, independently controlled for temperature. The modular design lowers maintenance costs and increases flexibility to run different fluid mixtures. The Calidus series were designed with the ideal that a GC used in the lab should be the same GC when used as an on-line system for process control. This way the performance, methods and procedures developed for highly repeatable measurements can be directly applied to on-line systems.

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