Drummond Scientific Company Micro Cap Glass Capillary Tube Micro Series

This is a highly accurate glass capillary made of borosilicate glass, and the volume from one end of the capillary to the other is constant, making it suitable for spotting samples in TLC and paper chromatography, and for applying electrophoresis samples. How to use: 1. Insert the microcap fully into the cap until it is visible inside the glass tube. 2. The rubber bulb at the top has a hole, allowing air to pass freely, so the liquid rises due to capillary action. 3. When the capillary is completely filled with liquid from one end to the other, the specified volume will be collected in the microcap. 4. To dispense the liquid, cover the hole in the rubber bulb with your finger and press the rubber bulb. *One rubber bulb is included with every 100 microcaps.