... pressure protection: overpressure automatic alarm and pump shut down on their own self-protection 3. Conductivity DetectorStructure: Five polar ... column.5.2 U.S. imports ALLTECH cation column, can carry on betaine, Li +, Na +, NH4 +, K +, Mg2 +, Ca2 +, Sr2 +, Ba2 ... regeneration of anion micro-membrane suppressor, not-for-acid, on-line automatic regeneration, uninterrupted use, simple operation and long ...