Rapid speciation analysis of mercury in seawater and marine fish by cation exchange chromatography hyphenated with inductively coupled plasma mass spectrometry.

Highlights: [•] Hg2+, MeHg, EtHg and PhHg were separated on two sequential 12.5-mm SCX columns. [•] The shortest separation time (2–2.5min) was consumed. [•] The mobile phase was most environment-friendly and fairly compatible with ICP-MS. [ABSTRACT FROM AUTHOR]