Opsis blog

Archive by tag: COReturn
RSS
Pollutants in Emissions to Air – What’s in the Smoke?

Pollutants in Emissions to Air – What’s in the Smoke?

Back in the nineteenth century or so, industries pouring out smoke through the stacks were considered signs of progress and prosperity. However, that changed when the effects of the emissions became apparent, including smog, acid rain, and respiratory diseases. Nowadays, the smoke is usually much cleaner thanks to more efficient production processes and flue gas treatment, but there’s still smoke. What’s in it?
Read More »
Inside the Gas Analyser – the Tuneable Diode Laser

Inside the Gas Analyser – the Tuneable Diode Laser

OPSIS is probably best known for its gas analyser systems based on broad-band (“white”) light from xenon lamps and spectrometers or interferometers as the core analysis devices. However, OPSIS also offers an instrument type base on a quite different optical technique – light absorption detected by utilizing a tuneable diode laser. Let’s take a closer look!
Read More »
DOAS Explained

DOAS Explained

DOAS stands for Differential Optical Absorption Spectroscopy. The DOAS technique was conceived almost a century ago, and it was applied on research level to air quality monitoring already in the 1970s.
Read More »

Archives

Categories