LGR Introduces
Portable Carbonyl Sulfide Gas Analyzer
Published on May 18, 2012 at 5:08 AM
By
Kalwinder Kaur
Los Gatos Research
(LGR), a manufacturer of precision instruments for measurement of trace
isotopes and gases, has introduced a portable analyzer for measurement of
carbonyl sulfide (OCS or COS) at stratospheric and atmospheric concentrations.
LGR OCS Analyzer
The
ultra-sensitive analyzer can also measure carbon dioxide (CO2),
carbon monoxide (CO), and water (H2O) simultaneously. The analyzer
provides rapid, automated, direct and real-time measurement of OCS with high
precision in terms of parts-per-trillion. It can be used easily in laboratory
environments and on the field due to its simplified operation that does not
require pre-treatment or sample drying.
The
OCS analyzer can be used along with LGR’s others accessories, such as wireless
and Ethernet connectivity, multiport inlet unit and data logging software for
remote monitoring applications. The gas analyzers are based on LGR’s patented
cavity-enhanced laser absorption technique named as Off-axis Integrated Cavity
Output Spectroscopy (OA-ICOS) technology. This technology does not require
sub-nanometer stability or ultra-precise alignment of its optics and this helps
it deliver better precision than the normal cavity ringdown spectroscopy
technology. This also leads to better reliability, linearity and accuracy. It
does not require frequent maintenance.
During
respiration, plants take in OCS and CO2 and during photosynthesis they
generate CO2. OCS concentrations are considered to be beneficial for
assessment of photosynthesis activity that occurs in plant canopies.
Simultaneous logging of OCS and CO2 will aid in monitoring the net
photosynthetic production. The global average presence of OCS is only around
500 parts per trillion and hence high sensitivity is required for measuring the
concentrations.