Principles of Infrared Analysis:Infrared (IR) absorption (or reflection for solids) is a technique that can be used successfully for continuous chemical analysis of a process. The IR region of the electromagnetic spectrum is generally considered to cover wavelengths from 0.8 to 1000µ…

Thermal Conductivity Gas Detectors  All gases possess varying degrees of ability to conduct heat.  In order to have a means of comparing the gases’ abilities, a coefficient has been assigned to each gas according to its capacity to retain heat.  These coefficients…

What is ORP (Oxidation – Reduction Potential) ?ORP electrodes measure the voltage across a circuit formed by the measuring metal half cell and the reference half cell. When the ORP electrode is placed in the presence of oxidizing or reducing agents, electrons…

Dissolved Oxygen Measurement One of the most important measurements in the determination of the health of a body of water is its dissolved oxygen content. The quantity of dissolved oxygen in water is normally expressed in parts per million (ppm) by weight and…