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GC2 About Multidimensional GC

Zoex Europe

 The key benefits of performing multidimensional GC vs  GC are:

· up to X10-30 more resolving power than GC
· unlimited peak generation
· easier method development
· higher-sensitivity for low-level target peaks
· more accurate peak quantitation
· separates most co-elutions
· prolonged GC column lifetime
· faster separation of components
· less peak broadening from late eluters
· group peaks into easily interpreted patterns

 Multidimensional GC is used in all types of GC applications and laboratories:

· Quality Assurance Laboratories
· Government Sponsored Laboratories
· Research & Development Laboratories
· Food & Consumer Product Testing Laboratories
· Forensic Investigation Laboratories
· Environmental Sample Testing Laboratories

 Unlimited samples can be analyzed by GCxGC:

· Petroleum & plastics samples with complex matrices
· Crude material containing catalytic poisons
· Flavours & fragrance samples with trace components
· Pesticides containing common interferences
· Contaminated food and beverage samples
· Isomeric mixtures

The Mathematics of Multidimensional GC
It is easy to see where the power of a second dimension in GC analysis comes from, by simply exploring the mathematics.

GC
A single GC run using one GC column can (statistically) resolve up to 37 components.” The theoretical peak capacity of a GC column is typically about 200.

GC + GC
The theoretical peak capacity of one single GC column cannot resolve all target analytes and so two separate GC runs are required. Performing two separate GC runs presents method development, set-up and time challenges for the GC analyst, since two separate sets of conditions are required to resolve the target components.

GC x GC
Enormous resolving power (up to x10) is gained by combining the theoretical peak capacity of two differing column polarities in succession. GCxGC requires only one GC set-up and is faster than performing two separate GC runs. Results in greater sensitivity for target analytes than conventional GC, and is further advantageous for when the sample volume is limited or when specific elemental or MS detection cannot distinguish components with certainty, e.g isomers.

GCxGC = unlimited peak generating solutions
GCxGC, comprehensive multidimensional chromatography or 2D-GC as it is otherwise known, is a relatively new technology which is less than 15 years old. You don´t have to be an opinion leader to enjoy the power of a 2nd dimension in your GC analysis. Zoex Europe offers complete GCxGC solutions for all levels of GC analysts. Whether you are completely new to GCxGC, an amateur, pro or opinion leader, Zoex Europe offers complete GCxGC solutions tailored to your applications so you can experience the power of a 2nd GC dimension. Full support to upgrade from GC to GCxGC is offered through the Zoex Europe Simply X Smart-Solutions approach.