Method and apparatus for sampling atmospheric mercury

Details Method and apparatus for sampling atmospheric mercury Method and apparatus for sampling atmospheric mercury

1974-07-23

1976-01-20

Scovronek, Joseph

Chemistry: physical processes

Physical processes

Crystallization

23254R, 55 72, 55387, 734215R, 252444, B01D 5304, B01J 2118, G01N 122, G01N 3106

Patent

active

039334317

ABSTRACT:
A method of simultaneously sampling particulate mercury, organic mercurial vapors, and metallic mercury vapor in the working and occupational environment and determining the amount of mercury derived from each such source in the sampled air. A known volume of air is passed through a sampling tube containing a filter for particulate mercury collection, a first adsorber for the selective adsorption of organic mercurial vapors, and a second adsorber for the adsorption of metallic mercury vapor. Carbon black molecular sieves are particularly useful as the selective adsorber for organic mercurial vapors. The amount of mercury adsorbed or collected in each section of the sampling tube is readily quantitatively determined by flameless atomic absorption spectrophotometry.

REFERENCES:
patent: 3022141 (1962-02-01), Grosskopf
patent: 3193987 (1965-07-01), Manes et al.
patent: 3232033 (1966-02-01), Williston et al.
patent: 3257776 (1966-06-01), Park et al.
patent: 3374608 (1968-03-01), Manes
patent: 3711248 (1973-01-01), Coffey
patent: 3826618 (1974-07-01), Capuano
patent: 3844719 (1974-10-01), Hammitt

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