The peristaltic pump tubing has to be washed prior to use. The common way is to run about 5% HNO₃ (v/v) solution.

• Long lifetime
• Resistant to most chemicals
• Not suitable for sample introduction - impurity level is high

If customers use HCl, Sn is eluted from the Tygon tube. In this case, 3% HCl (v/v) should be pumped at 0,1 rps for less than an hour by the new peristaltic pump tube.