The Application Notebook-02-11-2011

Perfluorinated compounds (PFC) are considered as emerging contaminants that attract high interest from the international scientific community.

Using a bonded polymeric zwitterionic stationary phase, in HILIC mode, polar quaternary herbicides like Diquat can easily be retained, with good peak symmetry.

Since the gas flow required for the separation step in gas chromatography is frequently lower that that required to optimize the detection, nitrogen is used as a make-up gas to increase the gas flow for detection.

Rapid Resolution High Definition (RRHD) columns, used on UHPLC instruments, provide significant productivity enhancements because they are stable to 1200 bar and can withstand higher flow rates.

Pesticide pollution is a subject of global concern, and although many countries have now banned the use of organochlorine pesticides, they linger in the environment and can contaminate water sources.

With Americans becoming increasingly health conscious and concerned with their exposure to chemicals, businesses have made movements to create more products that are safer for the consumer and the environment.

The separation of closely related compounds is of interest to many disciplines including natural products, flavors and fragrances, and pharmaceuticals.

The determination of enantiomeric purity is crucial in new drug development.