Refining microbial potentiometric sensor performance with unique cathodic catalytic properties for targeted application scenarios

Cai, Jiayi; Wang, Yue; Al-Dhabi, Naif Abdullah; Wu, Gaoying; Pu, Ying; Tang, Wangwang; Chen, Xueming; Jiang, Yong; Zeng, Raymond Jianxiong

doi:10.1016/j.envres.2024.118285

Cited by 4 publications

(1 citation statement)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Potentiometry is one of the most important electrochemical techniques, and researchers have long been interested in the applications of potentiometric-based sensors [ 23 ]. Hundreds of different sensors have been developed in this field and published in the literature to date [ 24 ]. Today, potentiometric sensors are the focus of interest due to the successful development of sensors in many applications [ 25 – 27 ].…”

Section: Introductionmentioning

confidence: 99%

Exploiting of Green Synthesized Metal Oxide Nanoparticles in the Potentiometric Determination of Metformin Hydrochloride in Pharmaceutical Products

Almutairi,

Alarfaj,

Almutairi

et al. 2024

International Journal of Analytical Chemistry

View full text Add to dashboard Cite

The advanced and highly functional properties of Al2O3 and NiO nanoparticles promote the widespread use of metal oxides as remarkable electroactive materials for sensing and electrochemical applications. The proposed study describes a comparison of the sensitivity and selectivity of two modified wire membrane sensors enriched with Al2O3 and NiO nanoparticles with conventional wire membranes for the quantification of the antidiabetic drug metformin hydrochloride (MTF). The results show linear relationships of the enriched Al2O3 and NiO nanosensors over the concentration ranges 1.0 × 10−10–1.0 × 10−2 mol L−1 and 1.0 × 10−6–1.0 × 10−2 M for both the modified sensors and the conventional coated wire membrane sensors. The regression equations were EmV = (52.1 ± 0.5) log (MTF) + 729 for enriched nanometallic oxides, EmV = (57.04 ± 0.4) log (MTF) + 890.66, and EmV = (58.27 ± 0.7) log (MTF) + 843.27 with correlation coefficients of 0.9991, 0.9997, and 0.9998 for the aforementioned sensors, respectively. The proposed method was fully validated with respect to the recommendations of the International Union of Pure and Applied Chemistry (IUPAC). The newly functionalized sensors have been successfully used for the determination of MTF in its commercial products.

show abstract