Articles | Volume 14, issue 6
Atmos. Meas. Tech., 14, 4707–4719, 2021
https://doi.org/10.5194/amt-14-4707-2021
Atmos. Meas. Tech., 14, 4707–4719, 2021
https://doi.org/10.5194/amt-14-4707-2021

Research article 28 Jun 2021

Research article | 28 Jun 2021

A method for liquid spectrophotometric measurement of total and water-soluble iron and copper in ambient aerosols

Yuhan Yang et al.

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Short summary
Iron and copper are commonly found in ambient aerosols and have been linked to adverse health effects. We describe a relatively simple benchtop instrument that can be used to quantify these metals in aqueous solutions and verify the method by comparison with inductively coupled plasma mass spectrometry. The approach is based on forming light-absorbing metal–ligand complexes that can be measured with high sensitivity utilizing a long-path liquid waveguide capillary cell.