Feature(may vary by option.)

●140 or 280 per pack large glass capillary tubes, 1.3-1.5mm inner diameter, 1.6-1.8mm outer diameter, 100mm length, both ends open.
●Convenient packaging with 3mm hole on cap for easy tube drawing without need to open the cap or keeping it open all the time.
●As shown in photos, approximate spotting volume as tested for dichloromethane is 8mm x (0.7mm)² x 3.14 = 12µL, for acetone is 13mm x (0.7mm)² x 3.14 = 20µL, and for water is 25mm x (0.7mm)² x 3.14 = 38µL.
●Testing method used is dipping the tube into the liquid at an angle, allowing the liquid to climb as much as possible, and then turning the tube to point straight down in the air.


Description