MicroFil™ WPI’s MicroFil™ fills micropipettes easily and reliably. Its long and fine tip allows you to start the filling very close to the pipette tip, eliminating both air bubble formation and clogging due to the washing down of dust particles. The transparent amber MicroFil needle is constructed from a combination of plastic and fused silica — no metal components are used. The MicroFil needle can be stored for days with the filling solution inside without clogging. The MicroFil’s tip elasticity is sturdy and very flexible though not unbreakable. Since it is more flexible than stainless steel needles, moderate bending will not block or damage the MicroFil needle. The combination of plastic and fused silica in the MicroFil tip is sturdier than plastic tips, allowing easy and repeated insertions into micropipettes. MicroFil’s luer fitting allows easy coupling to syringes and syringe filters. 1-5 pkgs 6-10 pkgs U.S. PATENT 5,294,325 MF34G-5 MF28G-5 MF28G67-5 MicroFil, 34 ga., 67 mm long (pkg of 5) MicroFil, 28 ga., 97 mm long (pkg of 5) MicroFil, 28 ga., 67 mm long (pkg of 5) GLASS, HOLDERS CUSTOM MICROFIL All MicroFil products, including custom orders, can be shipped immediately. Custom orders for special needs can be made using nine sizes of MicroFil tubing in lengths up to 50 cm — except for CMF90UxxL which has a maximum length of 10 cm because of its high resistance to flow. Quantity discounts available. Specify length when ordering by inserting the length (in centimeter increments) into the catalog number in place of the XX’s. CMF20GxxL CMF22GxxL CMF23GxxL CMF26GxxL CMF28GxxL CMF31GxxL CMF34GxxL CMF35GxxL CMF90UxxL MicroFil, 20 Gauge, 700 µm ID, 850 µm OD (pkg of 4) MicroFil, 22 Gauge, 530 µm ID, 700 µm OD (pkg of 4) MicroFil, 23 Gauge, 530 µm ID, 665 µm OD (pkg of 4) MicroFil, 26 Gauge, 320 µm ID, 430 µm OD (pkg of 4) MicroFil, 28 Gauge, 250 µm ID, 350 µm OD (pkg of 4) MicroFil, 31 Gauge, 100 µm ID, 238 µm OD (pkg of 4) MicroFil, 34 Gauge, 100 µm ID, 164 µm OD (pkg of 4) MicroFil, 35 Gauge, 75 µm ID, 144 µm OD (pkg of 4) MicroFil, approx. 36 Gauge, 20 µm ID, 90 µm OD (pkg of 4) Nonmetallic syringe needle for filling micropipettes PolyFil ™ Multi-barrel micropipette coupling kit & ELECTRODES MicroFil™ inserted into each barrel A drop of hot glue provides a secure, leak-free seal . PolyFil allows easy and secure coupling of a multi-barrel micropipette to a pressure source. Coupling is achieved by bonding temperature-resistant and flexible MicroFil to the capillary tube with hot melt adhesive. The luer end of each MicroFil is connected to PVC tubing (200 PSI rated). Kits also include a five-port manifold that allows use of a single PV800 Series PicoPump to drive up to six micropipette barrels independently by switching on only the barrels to be injected. All connections are locking luers — pressure safe and convenient. Kit includes: 1 pipette holder/handle, plastic; 7 pieces MF28G MicroFil; 7-pieces tubing with male luer lock fittings; 1 flow-thru manifold with five luer lock ports; 1 hot melt glue gun(110V only); 3 glue sticks. 5440 13316 PolyFil Multi-Barrel Micropipette Coupling Kit Mini Glue Gun and (3) glue sticks Pipette pulled from multi-barrel glass capillary UK: Tel: +44 (0)1462 424700 • wpiuk@wpi-europe.com World Precision Instruments www.wpiinc.com Germany: Tel: +49 (0)30-6188845 • wpide@wpi-europe.com US: Tel: 941-371-1003 • sales@wpiinc.com 115