Use of Sep-PakR C18 Cartridges for the Collection & Concentration of Environmental Samples

Abstract

High Pressure Liquid Chromatography (HPLC) is being increasingly employed in environmental analysis. However, HPLC is somewhat limited by the sensitivity of the detection systems commercially available. Many are not sensitive enough to cope with the lower levels being demanded by various governmental agencies. The purpose of this study is to show the efficiency of a simple sampling device, a SEP-PAK which not only allows efficient on-site sampling but offers the ability to concentrate samples down to a level where UV or fluorescent detection can determine trace quantities in the ppb range.