Preprints
https://doi.org/10.5194/amt-2024-26
https://doi.org/10.5194/amt-2024-26
01 Mar 2024
 | 01 Mar 2024
Status: a revised version of this preprint is currently under review for the journal AMT.

Aerosol trace element solubility determined using ultrapure water batch leaching: an intercomparison study of four different leaching protocols

Rui Li, Prema Piyusha Panda, Yizhu Chen, Zhenming Zhu, Fu Wang, Yujiao Zhu, He Meng, Yan Ren, Ashwini Kumar, and Mingjin Tang

Abstract. Solubility of aerosol trace elements, which determines their bioavailability and reactivity, is operationally defined and strongly depends on the leaching protocol used. Ultrapure water batch leaching is one of the most widely used leaching protocols, while the specific leaching protocols used in different labs can still differ in agitation methods, contact time, and filter pore size. It is yet unclear to which extent the difference in these experimental parameters would affect the aerosol trace element solubility reported. This work examined the effects of agitation methods, filter pore size and contact time on the solubility of nine aerosol trace elements, and found that the difference in agitation methods (shaking vs. sonication), filter pore size (0.22 vs. 0.45 μm), and contact time (1 vs. 2 h) only led to small and sometimes insignificant difference in the reported solubility. We further compared aerosol trace element solubility determined using four ultrapure water leaching protocols which are adopted by four different labs and vary in agitation methods, filter pore size and/or contact time, and observed good agreement in the reported solubility. Therefore, our work suggests that although ultrapure water batch leaching protocols used by different labs vary in specific experimental parameters, the determined aerosol trace element solubility is comparable. We recommend ultrapure water batch leaching to be one of the reference leaching schemes, and emphasize that additional consensus in the community on agitation methods, contact time and filter pore size is needed to formulate a standard operating procedure for ultrapure water batch leaching.

Rui Li, Prema Piyusha Panda, Yizhu Chen, Zhenming Zhu, Fu Wang, Yujiao Zhu, He Meng, Yan Ren, Ashwini Kumar, and Mingjin Tang

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on amt-2024-26', Anonymous Referee #1, 08 Mar 2024
  • RC2: 'Comment on amt-2024-26', Anonymous Referee #2, 25 Mar 2024
  • RC3: 'Comment on amt-2024-26', Anonymous Referee #3, 31 Mar 2024
Rui Li, Prema Piyusha Panda, Yizhu Chen, Zhenming Zhu, Fu Wang, Yujiao Zhu, He Meng, Yan Ren, Ashwini Kumar, and Mingjin Tang
Rui Li, Prema Piyusha Panda, Yizhu Chen, Zhenming Zhu, Fu Wang, Yujiao Zhu, He Meng, Yan Ren, Ashwini Kumar, and Mingjin Tang

Viewed

Total article views: 357 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
282 50 25 357 21 11 15
  • HTML: 282
  • PDF: 50
  • XML: 25
  • Total: 357
  • Supplement: 21
  • BibTeX: 11
  • EndNote: 15
Views and downloads (calculated since 01 Mar 2024)
Cumulative views and downloads (calculated since 01 Mar 2024)

Viewed (geographical distribution)

Total article views: 350 (including HTML, PDF, and XML) Thereof 350 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 15 Apr 2024
Download
Short summary
We found that for ultrapure water batch leaching, the difference in specific experimental parameters, including agitation methods, filter pore size and contact time, only led to small and sometimes insignificant difference in aerosol trace element solubility determined. Furthermore, aerosol trace element solubility determined using four common ultrapure water leaching protocols showed good agreement.