Without any detectable DNA enzymes,proteins,DNA,heat and metal.
Experiment prove tips with filter will work better under enviroment condition which with particle.
Better saelablity with soft but tough certrum design.
Kinds of filter with different size of pore to ensure your result correct under different working situation.
Exact scale mark let reading easily and conveniently.
Tip go slender gradually ensure handling mirco fluid.
96 tips per rack
50 racks per case