Waters HPLC Diagnóstico Y Corrección De Anomalías página 126

Techniques to Protect the Techniques to Protect the
Column Column
In-line Filter between the Injector and Column
— Protects against particles
Guard Column Between Injector and Column
— Protects against particles as well as chemical contamination
Filtering of the Sample
— Protects against particles
Filtering of the mobile phase (0,2µm filter)
— Protect against particles and microbial growth
Sample Cleanup through Solid Phase Extraction (SPE)
— Protects against chemical interferences
Limit High Back Pressures/Pulses (solvent viscosity)
©2007 Waters Corporation 126