In order to fill mark tubes with liquid samples, we have developed special glass needles. The thinnest needle has a diameter of less than 0.1 mm. So, even the finest mark tubes can be filled without any problem. The needle can be connected with a common disposable syringe or a micro litre syringe using a standard Luer connection.

 

The needle is made of borosilicate glass. The shaft is made of plastic with the needle glued in.

 

There are different diameters available.