RS Dynamics LLC products

Infrared Spectroscopy is principle for organic and inorganic chemistry analysis using infrared light interacting with a molecule. Infrared spectroscopy exploits the fact that molecules absorb specific wavelength of the light that are characteristic of their structure. Selected molecules have specific resonant frequencies where the absorption of radiation with proper wavelength is significantly higher in comparison to other part of spectra. Level of the absorption on given wavelength can be precisely measured and recalculate to amount of the substance of interest. By transmitting a beam of IR radiation through the air , or through any particular gas volume, and recording how much is transmitted at selected spectral lines, one may decide which gases are present and how much of each.

A PID uses an ultraviolet light source (various wavelength to various applications – (9.6 eV, 10.6 eV and 11.7 eV) to break down chemicals to positive and negative ions (Ionization) that can very sensitively be measured with a detector. It measures the charge of the ionized ions and converts the signal into electric current in pico-ampers. The current is then amplified and software recalculated into “ppb – ppm or microgram/m3 – to miligram/m3 (depending to the molecular weight of the molecules)” units.