“…After extraction, Hg species were separated and analyzed using a previously published method (Sannac et al, 2009;Gygax et al, 2019;Sannac et al, 2017) by coupling a high performance liquid chromatograph (HPLC 1260 Series, Agilent Technologies, Santa Clara, United States of America) to the ICP-MS (HPLC-ICP-MS). We used a reversed phase C18 column (Zorbax C-18, 4.6 × 50 mm, Agilent Technologies, Santa Clara, United States of America) and a mobile phase consisting of 0.1% (w/v) L-cysteine (98% v/v) and methanol (2% v/v).…”