Problem: Low level (ppm Level) gas calibration standards are quite expensive, especially with reactive compounds (sulfurs, oxygenates, halogenated compounds, etc.)

The Dynamic Blender allows for cheaper standards with higher concentrations to be blended down to low levels.

Problem: Multi point calibration requires the use of multiple standards with varying concentrations.

The Dynamic Blender allows for multi-point calibration with the use of a single standard that can be diluted down to lower concentrations.

Problem: Standards that have low level reactive compounds expire relatively quickly causing the user to constantly purchase new valid standards.

The dynamic blender allows the user to blend down the high concentration standard to low levels for calibration which eliminates the need to purchase expensive standards with low level reactive compounds. The high concentration standards last longer, reducing the frequency of purchasing new gas standards.

Problem: Some detectors require multi-point calibration due to nonlinear response curves

Some GC detectors such as FPDs, PFPDs, and NPDs have nonlinear response curves and require multi-point calibration as a result. The dynamic blender makes any lab have the capability of multi-point calibration opening the doors to new GC detectors and applications.

Problem: Some systems lose their linear response at low levels

Some systems may have issues with certain components at low levels due to a number of things (reactivity, absorption onto active sites in the flow path, poor sensitivity due to sample size or split ratio, etc.). If the system cannot maintain linearity at low level concentrations it would be very hard to determine with every day use causing the lab to report inaccurate numbers. The Dynamic blender allows the user to test linearity throughout the range of concentrations they see in their samples.

We at Wasson have decades of GC experience offering our customers turnkey solutions, often on the cutting edge of GC technology. We often use dynamic blenders in our GC application test lab to validate lower detection limits, linear dynamic ranges, and for calibration of non-linear detector systems. Having a Dynamic blender or two around has proven to be very helpful in increasing the productivity and capability of our GC lab.

• Inert flow path
• Heated bridge to GC to prevent sample condensation
• MFC can control from 0-500 cc/m allowing for a wide range of dilutions
• Compatible with any GC configured with a gas sampling valve

• MFC for automatic and rapid diluent gas control
• Mass flow control range: 0-500 cc/min
• Maximum temperature: 150°C
• Maximum diluent pressure: 100 psig
• Passivated sample tubing for reactive components
• Compatible with any GC configured with a gas sampling valve
• Heated bridge precisely controlled by built in Watlow controller