Product Reviews: State-of-the-Art Mercury CEMs

Abstract

New technologies for continuous monitoring of mercury emissions from hazardous and mixed-waste incineration.

SPR investigation of mercury reduction and oxidation on thin gold electrodes

“…The condensation of the gold film due to interaction with mercury suggests an attraction of atoms of these metals. It corresponds to literature data: an affinity of mercury to gold is well known and widely used for preconcentration of mercury vapor and as a receptor in chemical sensors for mercury vapor [17][18][19][20][21].…”

Development of Mercury and Hydrogen Chloride Emission Monitors for Coal Gasifiers

“…Since our work began, a number of Hg CEMs employing AA have been developed, some of which use a Zeeman-modulated background correction approach (5). Although that background correction approach appears to have good potential for the application of interest, we chose to investigate an alternate approach for performing the background corrections.…”

Elemental mercury vapor interaction with individual gold nanorods

“…Current air monitors are amply sensitive to detect the global background (1.2 ng m À3 ), 1 but are costly and can be unreliable. 2,3 Preconcentration of trace mercury vapor samples depends on gold surfaces to effectively trap and quickly release mercury in detectable amounts. 4 Trace samples at concentrations as low as 0.1 ng m À3 can be analyzed using a trap made of gold coated sand that feeds a cold vapor atomic uorescence or absorption spectroscope.…”