Xenobiotic Detection Systems had won a second US patent for toxin detection technology.

George Clark, president of the firm, and Michael Chu, a consultant who formerly ran the XDS lab, collaborated on the research. They have developed a means to rapidly quantify toxic equivalence measures as adopted by the World health Organization for individual chemical groups.

The company has found a way to differentiate between various hydrocarbons known as PHDHs, including PCBs.

“This new method is a major step forward in toxin detection as it allows for multiple analysis results from one PHDH laboratory sample,” the company said. “This saves time and is extremely cost efficient for both research and general public applications. The new process also provides a method for eliminating compounds that are not of the PHDH chemical group.”

XDS was founded in 1995.

XDS: www.dioxins.com