Gas chromatography (GC) analyses often include trace level detection of components requiring samples or standards at low concentrations. Some analytes are expensive or difficult to purchase at low levels due to reactivity, adsorption, or high molecular weight. Analyses may also cover a wide concentration range, requiring multi-point calibration.
The Wasson-ECE Dynamic Blender (DB302) provides a simple solution to these calibration needs. The Dynamic Blender is a portable gas blending device that dilutes a sample or a certified standard with a matrix gas of choice. One certified standard with concentrations at the upper limit of the desired calibration curve can be diluted to a lower level (>2 orders of magnitude lower) to create a full calibration curve.
An inert flow path and heated bridge eliminate adsorption and condensation problems when blending gas standards that include sulfur, nitrogen, and other reactive compounds.
An on-board flow controller allows the diluent gas flow to be controlled digitally and samples are fed directly to a gas chromatograph. The Dynamic Blender eliminates the need to purchase and store multiple gas cylinders and provides an easy, cost-effective solution for gas phase calibration needs.
Approximately 100 pre-programmed pure diluent gases and mixtures and twenty user configurable diluent mixture slots.
Maximum Diluent Pressure of 100 psi (leak tested to this pressure)
Maximum Temperature of 150°C (operation verified at this temp.)
Mass Flow Controller Range of 10 – 500 cc/min
7 μm in-line gas filters (treated) are also provided
Specially passivated tubing for trace reactive compounds (sulfurs, oxygenates, etc.)
*This treatment is not suitable for samples with pH > 8.0, so please notify your sales representative if you have high pH samples.
