What methods could be used for determining the concentration of Zn2+ in a solution?

I know that complexometric titration with EDTA is one method. What other methods could be used?




* Mass spectroscopy(MS)
* HPLC-MS, if separation is required
* Atomic emission spectroscopy(AES)
(Probably)
* Polarography/voltammetry


The list is not exhaustive.


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