Electrochemical Behaviors and Electrochemical Determination of 1-naphthaleneacetic Acid at an Ionic Liquid Modified Carbon Paste Electrode

Abstract

Abstract. Electrochemical behaviors of 1-naphthaleneacetic acid (NAA) at an ionic liquid N-butylpyridinium hexafluorophosphate (BPPF 6 /CPE) modified carbon paste electrode was investigated by cyclic voltammetry (CV) and further used for NAA sample determination. The experimental results showed that NAA at both the bared and the modified electrode showed an irreversible oxidation process, but at the modified electrode it exhibited an enhanced electrochemical response towards its electrochemical oxidation. BPPF 6 /CPE was characterized by electrochemical impedance spectroscopy (EIS). At the same time, the electrochemical kinetic parameters were determined at both electrodes. The oxidation peak currents increased linearly with NAA concentration range from 2.0 × 10 -5 to 4.0 × 10 -4 mol dm -3 with the detection limit (S/N = 3) of 1.690 × 10 -7 mol dm -3 under the optimized experiment conditions. The proposed method was successfully applied for NAA content determination in both commercial formulations and the soil samples. (doi: 10.5562/cca1901)

Plant Cells Use Auxin Efflux to Explore Geometry

“…The temporal dynamics of the auxin gradient was calculated based on Fick's second law in one dimension based on a diffusion coefficient for NAA of 6.6·10 −6  cm 2 . sec −1 30 and 7.98·10 −6  cm 2 . sec −1 for 2,4-D31.…”

Electrochemical behavior of labetalol at an ionic liquid modified carbon paste electrode and its electrochemical determination

“…As continuations of previous work, [12][13][14][15] an IL/CPE was fabricated using 1benzyl-3-methylimidazole hexafluorophosphate ([BnMIM]PF 6 ) as a modifier and characterized by both cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The electrochemical behaviors and the electrochemical determination of LBT were investigated at both bare a CPE and [BnMIM]PF 6 /CPE by CV and the square wave voltammetry (SWV).…”

Electrochemical Behaviors of Methocarbamol at an Acetylene Black-Ionic Liquid Modified Carbon Paste Electrode and its Electrochemical Determination

“…As continuations of our previous work, [25][26][27][28] an AB-[BnMIM]PF 6 /CPE had been fabricated by using acetylene black (AB) and 1-Benzyl-3-Methylimidazole hexafluorophosphate ([BnMIM]PF 6 ) as a modifier and characterized by both cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The electrochemical behaviors and the electrochemical determination of MET were investigated at the bare CPE, AB/CPE, [BnMIM]PF 6 /CPE and AB-[BnMIM]PF 6 /CPE by CV and the square wave voltammetry (SWV).…”