The Sievers 355 Sulfur Chemiluminescence Detector (SCD) is the most sensitive and selective chromatographic sulfur detector available for the analysis of sulfur compounds. The SCD sulfur analyzer utilizes a Dual Plasma Burner to achieve high temperature combustion of sulfur containing compounds to form sulfur monoxide (SO). A photomultiplier tube detects the light produced by the chemiluminescent reaction of SO with ozone. This results in a linear and equimolar response to the sulfur compounds without interference from most sample matrices. Since measuring trace levels of sulfur compounds is of great importance to a number of industries, the SCD has become an important analytical tool for detecting sulfur, problem solving and monitoring product quality.

The Sievers® 255 Nitrogen Chemiluminescence Detector (NCD) builds on GE Analytical Instruments expertise in chemiluminescence detection technology. The NCD is a nitrogen specific detector that produces a linear and equimolar response to nitrogen compounds. This is accomplished by using a stainless steel burner to achieve high temperature combustion of nitrogen containing compounds to form nitric oxide (NO). A photomultiplier tube detects the light produced by the subsequent chemiluminescent reaction of NO with ozone. Because of the specificity of the reaction, complex sample matrices can be analyzed with little or no interference.

The Sievers Sulfur Chemiluminescence Detector (355 SCD) and Nitrogen Chemiluminescence Detector (255 NCD) are the world's most sensitive and selective chromatographic detectors for sulfur and nitrogen-containing compounds. With the development of the new Sievers Dual Plasma™ Burner and Controller for use with both detectors, the SCD and NCD now offer even better analytical performance, ease of use, lower maintenance, and faster start-up and equilibration times.