Agilent 7890A GC with OI Analytical PID

The Model 4430 Photoionization Detector (PID) is a uniquely-designed gas chromatograph (GC) that selectively responds to aromatic and olefinic hydrocarbons in the presence of alkanes and other saturated hydrocarbons. Our Model 4430 PID’s unique patented Window Sweep design prevents the sample stream from contacting and contaminating the lamp window. It also allows the analysis of photosensitive compounds, which would otherwise combine to form a polymer on the window surface.

The 4430 detector contains an ionizing chamber, UV lamp, and column makeup adapter and uses a standalone, high-voltage power supply for the UV lamp. The 4430 PID features a unique patented Window Sweep design that prevents the sample stream from contacting and contaminating the lamp window. It also allows the analysis of photosensitive compounds, which would otherwise polymerize on the window surface. The 4430 PID is available for installation on most GC manufacturer’s instruments.

PID Features:

UV-lamp Window Sweep design minimizes fouling from window surface contamination

Lampsaver circuit extends lamp lifetime by turning off when not in use

Direct interface to ELCD, XSD, or FID to form tandem detector systems; requires only one detector port

Detector vent for venting undesirable sample solvents

Compatible with packed and capillary columns

Custom engineered to fit specific GC models

Easy operation and maintenance

Dynamic Range: >10 6

Linear Range: >10 6

Sensitivity: <40 pg (benzene)

Maximum Operating Temperature: 275° C

Detector Volume: Approximately 50 μL

Solvent Vent Valve: Remotely controlled

Lamp Current: 0–1.60 mA in 0.15 mA steps

Lampsaver Time: 0.5–2 hours, reset by external contact