ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Determination of Mn²⁺ in seawater used an in situ shipborne detection device coupled with the glassy carbon electrode

Zhiwei Lai

College of Petrochemical Engineering, Zhangzhou Institute of Technology, Zhangzhou, China

E-mail: 1131897934@qq.com

Received: 19 June 2024  Accepted: 3 November 2024

Abstract:

An in situ shipborne detection device was developed and applied to the detection of manganese ion (Mn²⁺) in the offshore seawater. A sealed chamber design was used for insulating against the seawater corrosion. And under the control of computer, the device would be run without any manual intervention. The waste would be collected and follow further treatment. The sensitivity of the device was investigated with a limit of detection (3σ/S) of 1.0 ppb between the concentration 0 and 200 ppb. The stability of the device also examined with a RSD of 4.6% (n = 10), and the device worked well last a month with the same electrode. Finally, the in situ shipborne detection device has been successfully applied for the determination of Mn²⁺ in seawater around Xiamen Island. A series of optimizations would be carried out so that the shipborne detection device will be more suitably applied to the determination of heavy metal ions in seawater in the future.

Graphical Abstract

Keywords: In situ; Shipborne detection device; Mn2+; Seawater

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-024-03797-5

Chemical Papers 79 (1) 511–518 (2025)