Tekran® 1135 (Particulate Mercury Unit)

The Tekran® Model 1135 Particulate Mercury Module connects seamlessly to the top of the Model 1130 to continuously monitor ambient air particulate bound mercury (HgP), gaseous oxidized mercury (GOM) and gaseous elemental mercury (GEM). The complete Tekran® 2537-1130-1135 Atmospheric Mercury Speciation System provides fully automated, unattended operation to determine all three mercury species concurrently. It is the only system available which has this advanced capability to routinely measure part per quadrillion mercury speciation in ambient air. Measurement of Hgp with the Tekran® Model 1135 is the important link connecting deposition of air mercury to sensitive aquatic ecosystems. Emissions of Hgp from point sources, in-situ production and transport can result in locally enhanced mercury deposition. Thus, air speciation of mercury is of particular interest close to industrial sources. Networks around the world have chosen the Tekran® 1135 for mercury speciation monitoring in air.

Conventional particulate sampling is not successful at separating mercury species since GOM has a high affinity for surfaces and sticks to filter media, biasing results. The Tekran® 1130 – 1135 Modules solve this problem by selectively capturing the GOM fraction from the sampled air stream prior to the Model 1135 particulate mercury filter element. Analysis occurs by heating and pyrolysis to release the HgP as GEM for detection and thermally decomposing the particulate matter. Enhanced instrument status and performance is monitored using Tekran® DataCom software, providing the operator with continuous quality assurance results.