Poster Title and Affiliations

• Title: Electrochemical Sensor Development for Detection of Manganese Ion in Water Based on Glassy Carbon Electrode.

• Authors: Tengku Sarah Tengku Md Fauzi¹, Nadrahtul Huda Misral², Syaza Azhari¹, Muhammad Qadri Effendy Mubarak¹, Apon Numnuam³, Natha Nontipichet³ & Supapich Romportong³.

• Affiliations:
  ¹Faculty of Science and Technology, Universiti Sains Islam Malaysia, 71800 Nilai, Negeri Sembilan
  ²Tamhidi Centre, Universiti Sains Islam Malaysia, 71800 Nilai, Negeri Sembilan
  ³Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla

SDG 6 Alignment

This research supports SDG 6 (Clean Water and Sanitation) by developing a cost-effective and reproducible electrochemical sensor for manganese ion detection. It contributes to safe drinking water access (Target 6.1) and prevention of contamination to protect public health (Target 6.3).

Problem Statement

Excess manganese (Mn²⁺) exposure is linked to neurological disorders such as Parkinson-like syndrome. Conventional detection methods are costly and complex, while many developed electrodes require expensive modifications and show a limited potential window for analysis.

Aim of Study

To develop an electrochemical sensor using a Glassy Carbon Electrode (GCE) as a preliminary study for a sensitive and selective Mn²⁺ detection in water.

Methods

• Electrode Preparation: GCE polished with alumina and cleaned before analysis.

• Electrochemical Detection: Mn²⁺ deposited and reduced on GCE surface using CSV.

• Real Sample Analysis: Rain, tap water and drinking water tested for recovery studies.

Results

• Limit of detection: 0.05 µM

• Linear response range: 0.1 to 10 µM

• Reproducibility: RSD 6.33–10.39%

• Recovery in real samples: 97.12–125.7%

Conclusion

The developed GCE sensor provides a low-cost, reusable, and stable platform for Mn²⁺ detection in water. With further modification, it has strong potential for portable field applications in environmental monitoring and safe water management.