DisQuE 150 mg MgSO4 & 25 mg PSA, 2 mL Tube, 100/pk

This is clean-up tube is used for the extract from step 1 in QUECHERS CEN Method 15662. QUECHERS (pronounced catchers) methods are used for multi-pesticide residue analyses in food . This is a 100 pack of tubes containing the d-SPE components.