Filtration Option for 4 mm Filters Specifications Uses Components* The Filtration Option for 4 mm filters for the GERSTEL Multipurpose Sampler (MPS) provides automated sample filtration for up to 98 samples. The filtration step can be inserted into any injection method or any part of a sample preparation sequence using GERSTEL-MAESTRO software. Due to its ease of use, and time savings when compared to manual filtration procedures, this option makes filtration practical for almost any analysis. The routine removal of unwanted components from the sample provides significant improvement in chromatographic column life and instrument maintenance intervals. The GERSTEL filtration option automates widely used 4 mm syringe type filters that are available with many types of membrane materials and pore sizes. • Filter tray for up to 98 x 4 mm diameter syringe filters • Filtrate collection tray for up 98 x 1.5 mL vials • Waste container for used filters • 2.5 mL syringe, syringe holder and gripper Filtration Volume • Approximately 1 mL, depending on the particle load Filter Pore Sizes • 0.2 pm Technical changes and errors reserved. 072015 Filtration Steps • Sample is drawn into the syringe • Air is drawn into the syringe • Filter is attached to the syringe • Sample is passed through the filter and filtrate is collected in a vial • The filter is discarded or placed back in the filter tray Characteristics • Compatible with most standard LC and GC systems • Compatible with most 4 mm filters • Automated operation with GERSTEL Multipurpose Sampler • Can be operated with both sealed and open vials • High sample capacity due to 98 positions per filter tray • 0.45 pm Filter Membranes • PTFE • polypropylene • Regenerated cellulose • Nylon • PVDF • Cellulose acetate Filtration Velocity • Approximately 20 pL/s Materials • Filter housing: PP System Requirements • GERSTEL MultiPurpose Sampler • Wash station for syringe clean-up • Sample tray and tray holder • Stainless steel needle Syringes • 1 mL or 2.5 mL, with gas connection • optional - 5 mL without gas connection Custom solutions for special performance requirements available upon request. *> Option can be expanded with addi

Control • GERSTEL MAESTRO software, integrated with Agilent® Technologies ChemStation or GC MassHunter software; integrated in the sequence table of Agilent LC MassHunter, AB Sciex Analyst®, or Thermo Scientific® Xcalibur™Software or in MAESTRO stand-alone mode • All parameters selectable by mouseclick Operation Temperature • 20 ... 35 °C Storage Temperature • 5 ... 40 °C Dimensions (H x W x D) • Filter tray on adjustable tray holder: 18.5 cm x 15.5 cm x 34.5 cm • Filtrate tray on standard tray holder 15 cm x 14.5 cm x 34 cm • Waste container 40 cm x 12 cm x 20 cm Other Filtration Options • Universal...