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SECTION 11 Specimen Preparation and Embedding Supplies Perfect Loop
Using this PERFECT LOOP, you can place your thin sections, cut on the ultramicrotome, easily on the grid mesh without creases.
Perfect Loop for Ultra thin sections 70944
70945 70946 70948
Set of Handle & Loop Loop only Loop only
Perfect Loop for Light Microscopy (large sections). The outside diameter of the loop is 7mm. 70940
70941 70942 70943
LM Set of Handle & Loop LM Loop only LM Loop only
LM Loop Handle TECHNICAL TIP
The Perfect Loop For Section Pick Up The Perfect Loop (EMS cat # 70944) allows you to pick up sections consistently without causing any damage to the sections. It is the only loop that is currently available where the outside diameter of the loop is the same as the grid and the inside diameter is slightly larger than the observation area of the electron microscope. The thickness is about 40 microns. Due to the fact that the loop and the grid are of the same diameter they are attracted to one another when in water and attach together through the surface tension of the water. Even if the section touches the inside of the grid during blotting the touching area is minor and, therefore, the section is not damaged. When the grid is removed from the loop the section remains in place without fail. The area equals the observation field (about 2mm diameter) of the electron microscope; thus pieces can be fully observed.
Deluxe Perfect Loop As in our standard Perfect Loop this device allows you to pick up sections with ease. This set utilizes the Perfect Handle complete with protective collar (#70616-HD).
Gently lift up the LOOP with the sections in a droplet of water.
Lower the LOOP onto a grid and lift up again.
Centre the LOOP above the sections
Slowly lower the LOOP over the sections and touch the water.
The grid holds to the LOOP by sur face tension.
Lower the LOOP to the filter paper to remove water.
7. 70939 70616-HD
Deluxe Perfect Loop Set Perfect Handle Only
Set each Perfect Scale
Made from Nickel alloy, 3mm in length with 1⁄10 mm divisions. The Scale fits the Perfect Handle(70616-HD). The Perfect Scale comes complete with one scale and a handle.
70617-10 70617-20 70616-HD
Perfect Scale Set Perfect Scale Only Perfect Handle Only
each each each
For coated grids, touch with filter paper to remove water.