The ta3000 gas analyzer is an isothermal gas chromatograph configured with either a Reduction Gas Detector or Flame Ionization Detector. The chromatographic hardware of the ta3000 is available in several configurations, each of which enables the instrument to perform a highly specialized task.

The RGD has unique characteristics when compared to traditional gas chromatography detectors. Developed and patented by Trace Analytical, the RGD can selectively detect "reducing" compounds. The operating principle of the RGD is based upon the strong absorption of UV light by mercury vapor. As a reducing species passes through a heated mercury oxide bed in the detector, mercury vapor is released in direct proportion to its concentration in the sample gas.

The FID detector is the most widely used detector in GC. This detector responds to molecules with carbon-hydrogen bonds. The gas eluent from the GC column is mixed with hydrogen to support a flame that burns the C-H and forms ions. The ions are collected on a biased electrode and produce an electrical signal. The generated current is proportional to the concentration in the sample.