Technical application

The DKG ONE PH analyzer is based on ultra sensitive cantilever beam enhanced photoacoustic spectroscopy detection technology, combined with quantum cascade laser (QCL) light source, working on the mid infrared basic spectral absorption peak of phosgene. The combination of these two provides sufficient sensitivity to detect the smallest concentration of phosgene leakage almost without delay, while ensuring ultra-high levels of stability. The recalibration cycle can take several months or even years, greatly reducing the overall holding cost.

Testing requirements

Phosgene is an important organic intermediate with many uses in pesticides, pharmaceuticals, engineering plastics, polyurethane materials, and military applications. Phosgene is highly toxic and a highly irritating and suffocating gas. Inhaling phosgene can cause pulmonary edema, pneumonia, and other life-threatening conditions.

advantage

lAccurate, reliable, and low maintenance cost phosgene leak control

lFast response time to capture sudden increases in concentration

lIndependent operating system with built-in gas exchange pump

lNo consumables or chemical reagents

lShort path length, single point calibration can also achieve industry-leading dynamic range

lDirect absorption measurement without drift

lCalibration interval is long (up to several years)

lHigh selectivity, not affected by othersInterference from VOCs

characteristic

lHighly selective monitoring of trace levels of phosgene

lPpb level detection lower limit (LoD)

lThe response time can be set, from10 seconds to a few minutes

lWide dynamic range, stable operation

lNo consumables

lLow sample size (how many)ml）

lBuilt in gas exchange system

lRecalibration interval length (several months)

lIntuitive user interface

lBuilt in display screen, capable of displaying results digitally or graphically

lCan be remotely operated through LAN