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. Author manuscript; available in PMC: 2010 Dec 1.
Published in final edited form as: Anal Chem. 2009 Dec 1;81(23):9795–9801. doi: 10.1021/ac901805d

Figure 1.

Figure 1

Relative extraction efficiency of total PBDEs under different conditions. The error bar represents one standard deviation of the duplicated analyses. The condition with an asterisk was chosen for the optimized MSPD procedure.