Removal of traces of mercury from a carrier gas for analytical purpose

Journal of Analytical Science and Technology

Table 1 Performance of sorbents for removing mercury from a gas mixture

Sorbent	AC	s	Duncan
A1 + A2	3.38	0.465	A
A2	3.34	0.444	A
C1	2.93	0.508	AB
A1	2.52	0.360	B
C2	1.91	0.435	C

Gas flow = 200 mL min⁻¹; mercury concentration in the gas mixture = 6.35 pg L⁻¹; experiment time = 3 min. A1 and A2 columns contain Au and Pt, respectively. C1 and C2 columns contain activated carbon for general use and specifically for Hg, respectively. Absorptive capacity (AC) is expressed in pg Hg. Standard deviation (s) is for five replicates. Duncan test results to a level of 5%.