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Sampling and determination of gas phase divalent mercury in the air using a KCl coated denuder (1997)

Xiao, Z. ; Sommar, J. ; Wei, S. ; [et al.]

Springer

Fresenius' journal of analytical chemistry 358 (1997), S. 386-391

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ISSN: 1432-1130

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Notes: Abstract KCl coated denuders were employed for the measurement of divalent mercury (Hg2+) species in the air. Laboratory tests show that gaseous Hg2+ can be collected by the denuder with an average efficiency of 98% and elemental Hg will pass through it freely. Hg2+ trapped in the denuder can be quantitatively extracted by 1 mol/L HCl and analyzed by the method of SnCl2 reduction-CVAFS determination. Hg2+ concentrations of 0.04–0.15 ng m–3 corresponding to about 2–9% of the total gaseous mercury in the ambient air were determined at several sampling locations.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/s002160050434

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