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Updated: Jan 8, 2026

Chemiluminescence-based Assays for Detection of Nitric Oxide and its Derivatives from Autoxidation and Nitrosated Compounds

Chemiluminescence-based Assays for Detection of Nitric Oxide and its Derivatives from Autoxidation and Nitrosated Compounds

Published on: February 16, 2022

水中の亜硝酸の電気化学的検出のための銅(I)-ビキノリン錯体修飾電極の評価

Natalia P Martínez¹, Verónica Valladares², Colin Poblete²

¹Departamento de Química, Universidad Técnica Federico Santa María, Av. Vicuña Mackenna 3939, San Joaquín, Chile.

|December 23, 2025

Abstract:

Glassy carbon electrodes were modified with a small amount of Nafion and a novel copper (I)-biquinoline coordination compound. Their electrochemical properties were evaluated for the detection and quantification of nitrite in aqueous media. The surface of the resulting stable and reproducible electrodes was characterized by Raman spectroscopy and atomic force spectroscopy (AFM). Electrochemical measurements in Britton-Robinson buffer revealed an increased current response and a decrease in onset potential for nitrite reduction compared with bare glassy carbon electrode. The modified electrode exhibited a linear response (R² = 0.998) a detection limit of ca 0.04 μM and recovery values of 88.9 ± 0.05 % in model water, 43.2 ± 0.04 % in drinking water and 23.9 ± 0.31 % in well water. Chronoamperometric measurements at -0.86 V (vs Ag/AgCl) demonstrated that no other ions interfered with the electrochemical response of Cu(I)-biquinoline modified electrodes.

キーワード:

水溶液中の亜硝酸の選択的検出のための銅(I)-ビキノリン錯体 [Cu(biq)₂]⁺修飾ガラスカーボン電極を用いた電気化学的亜硝酸センサー環境に優しい銅ベースのセンサー材料水回収実験における亜硝酸の高感度かつ低検出限界（0.04 μM）

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Accumulation and Analysis of Cuprous Ions in a Copper Sulfate Plating Solution

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