QuEChERS 1200 mg MgSO4 and 400 mg PSA, 15 mL Tube, 50/pk

This is clean-up tube used for the extract from step 1 in QUECHERS sample preparation. This d-SPE tube contains PSA for clening up high water content samples such as fruit and vegetables. QUECHERS (pronounced catchers) methods are used for multi-pesticide residue analyses in food. This is a 50 pack of tubes containing the d-SPE components.