In 2005, Agilent released an improved FPD with minimum detectable levels (MDL) of 3,6 pg/s for sulphur and 60 fg/s for phosphorus. This is more than a five times improvement for sulphur.

• The FPD uses three gases: air and hydrogen to support the flame, and nitrogen makeup for capillary columns. The flow rates are critical for optimising performance.

The updated design is based on a one-piece, deactivated transferline jet assembly and improved optics.