Our Laboratory routinely analyzes EPA Method 30B Total Hg & Speciation sorbent traps for Relative Accuracy Test Audits, 30B LEE compliance, mercury control technology optimization/verification, and other 30B applications. These sorbent traps are analyzed via thermal desorption atomic absorption spectrometry using Ohio Lumex M324 sorbent trap analyzers. Ohio Lumex also produces, spikes, and provides expert guidance on the use of these sorbent traps.