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. Author manuscript; available in PMC: 2014 Sep 1.
Published in final edited form as: J Anal At Spectrom. 2013 Jun 21;28(9):1456–1465. doi: 10.1039/C3JA50021G

Fig. 4.

Fig. 4

HPLC-ICP-MS chromatograms

a: 0.025 M HNO3, pH adjusted with NaOH to approx. 6;

b: Standard 400 ng mL−1 iAs V and 200 ng mL−1 each MAsV, DMAsV and TMAsVO;

c: SLRS-4 river water SRM, pH adjusted with NaOH to approx. 6; 1,2- TMAsVO (void volume) and iAsIII coeluting, 3-DMAV, 4- MAV, 5- iAsV, U- unknown Traces shifted vertically for clarity.