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. Author manuscript; available in PMC: 2015 Oct 2.
Published in final edited form as: Environ Sci Technol. 2008 May 1;42(9):3201–3206. doi: 10.1021/es702910g

FIGURE 2.

FIGURE 2

Chromatograms from the analyses of arsenic in the headspace of bacterial cultures and control. (a) arsenite (10 μM) incubated in culture medium without E. coli cells; (b) E. coli expressing the pET-28a vector plasmid, incubated with 10 μM arsenite; (c) E. coli expressing the arsM gene, incubated with 10 μM arsenite. The major peak in (c) corresponds to (CH3)3As.