. 2023 Jun 28;13(28):19030–19038. doi: 10.1039/d3ra00603d

Elution sequence of the two-column separation of Zn from dilute water.

Eluant	ml	Eluted
Column 1: 2 ml Bio-rad AG MP-1M resin (100–200 mesh)
0.5 mol l⁻¹ HNO₃	30	Cleaning
H₂O	15	Rinsing
6 mol l⁻¹ HCl	8	Conditioning
6 mol l⁻¹ HCl sample solution	1	Loading
6 mol l⁻¹ HCl	4	Matrix
0.5 mol l⁻¹ HCl	6	Matrix
0.5 mol l⁻¹ HNO₃	12	Eluting Zn

Column 2: 0.6 ml Bio-rad AG MP-1M resin (100–200 mesh)
0.5 mol l⁻¹ HNO₃	30	Cleaning
H₂O	15	Rinsing
6 mol l⁻¹ HCl	8	Conditioning
6 mol l⁻¹ HCl sample solution	1	Loading
6 mol l⁻¹ HCl	2	Matrix
0.5 mol l⁻¹ HCl	3	Matrix
0.5 mol l⁻¹ HNO₃	7	Eluting Zn