TY - JOUR T1 - One-Pot Separation and Preconcentration for the Determination of Chromium Species Using an Aqueous Biphasic System JO - Journal of the Brazilian Chemical Society A1 - Patrício, Pamela R. A1 - Quintão, Juan C. A1 - Silva, Luis H. M. da A1 - Hespanhol, Maria C. SN - 0103-5053 UL - 10.21577/0103-5053.20220059 VL - 33 Y1 - 2022 PB - Brasil ER -