In Voltammetric detection of lead, cadmium and mercury, we study effect of concentration of nitric acid, is study pH is required?

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DOS version.

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Palmitic acid presence in aqueous fraction

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M. A. Masoud

I think you may find the response to your inquiry in the following papers:

Article Mercury Free Anodic Stripping Voltammetric Determination of ...

Article A novel voltammetric sensor for sensitive detection of mercu...

Article Anodic stripping voltammetry of lead and cadmium using a mer...

Article Mercury-free sono-electroanalytical detection of lead in hum...

Rabeay Y.A. Hassan

If you used a strong acid as a supporting electrolyte for your electrochemical study, then the pH is the -log (H+). So, measuring individual pH is not necessary for your case.

Good luck