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• 140/280 per pack capillary tubes, 1.3-1.5mm inner diameter, 1.6-1.8mm outer diameter, 100mm length. Made of borosilicate glass.Good for preparative TLC spotting.

• 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 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.

• Upgraded convenient packaging with 3mm diameter hole on cap for easy tube drawing without need to open the cap or keeping it open all the time.

Large Capillary Tubes 100 mm x 1.3-1.5 (1.4) mm ID 280 or 140/pk Micro Pipets


    New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag.

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