The Apex improves sensitivity primarily by increasing both sample transport efficiency and the quality of aerosol introduced to the ICP instrument. Liquid samples are nebulized with the PFA Microflow nebulizer into a heated cyclonic spray chamber and Peltier cooled condenser. This gives unsurpassed stability along with enhancements in sensitivity of between 3 – 15 times depending on the volume of sample introduced.

The Apex is provided in 4 platforms:

Apex E	Low cost unit designed primarily for ICP Emission systems. The sample path is made from Pyrex and temperature settings of the heater and chiller are fixed.
Apex Q	Has an o-ring-free Quartz flow path for high sensitivity and low background for samples that do not contain hydrofluoric acid. The Apex Q gives the fastest rinse-out of any high sensitivity ICP introduction system.
Apex HF	Uses a high-purity PFA Teflon flow path to provide resistance to HydroFluoric acid.
Apex IR	Has a quartz flow path and includes an additional mixing chamber giving the most stable signal, ideal for Isotope Ratio analysis.