Abstract
A combination hot plate and hood for beakers is described which effectively captures gases and vapors evolved during wet digestion and evaporation operations. Four-foot long modules accommodating 250, 400, and 600 ml Griffin form beakers were constructed and installed in the space below the reagent shelf between laboratory benches placed back-to-back. The location minimizes air turbulence, permitting complete control with as little as 15 cfm of air per linear foot of hood. The beakers rest directly on resistance strip heaters with controlled heat output.