Ions and trace metals are quantified to PPT levels using the technique of ion chromatography. In addition to the ones named above, some of the items measurable by ion chromatography include fluoride (Fl-), sodium (Na+), calcium (Ca2+), potassium (K+), magnesium (Mg2+), Bromide (Br-), chloride (Cl-), nitrate (NO3-), sulfate (SO42-), phosphate (PO43-) and lithium (Li+ ).
The presence of ions can be an indication of poor performing exchange resins, or failures from system equipment (pumps, valves or degradation of metal components). Their presence in purified water can cause defects on products and interfere with plant operations.
flow rates too high