Specialist supplier of quality gas chromatography equipment, Thames Restek, has expanded its product portfolio with an increased range of Restek’s award-winning QuEChERS SPE tubes. The easy to use tubes are now available in three centrifuge sizes to meet the needs of both extraction and clean-up of pesticide residue samples from food products Fast, simple and ready to use, the centrifuge tubes are available in 2ml, 15ml and 50ml sizes containing ultra pure pre-weighed adsorbent mixes. The QuEChERS tubes enable a fourfold increase in sample throughput to be achieved with a fourfold decrease in material costs. The convenient QuEChERS SPE tubes have been specifically designed for those performing the QuEChERS method of extraction and clean-up using dSPE, which was developed by the US Department of Agriculture Eastern Regional Research Centre.