Simultaneous Electrochemical Determination of Indole-3-acetic Acid and Salicylic Acid in Pea Roots using a Multiwalled Carbon Nanotube Modified Electrode

Sun, Lijun; Liu, Xiaojun; Gao, Ling; Lu, Yannan; Li, Yubin; Pan, Zhong-Qin; Bao, Ning; Gu, Hongchen

doi:10.1080/00032719.2014.991963

Cited by 27 publications

(9 citation statements)

References 31 publications

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“…Electrochemical sensors have aroused extensive interest due to their high sensitivity, good selectivity, fast response, good portability, and low cost, etc. Various electrochemical sensors have been developed for the detection of IAA [16][17][18] or SA [19][20][21] alone. However, up to our knowledge, few works has been done on the simultaneous detection of IAA and SA using electrochemical methods.…”

Section: Introductionmentioning

confidence: 99%

“…However, up to our knowledge, few works has been done on the simultaneous detection of IAA and SA using electrochemical methods. 16 Recently, a great deal of research has been done on the development of ratiometric electrochemical sensors. Different from the conventional single signal electrochemical sensors, ratiometric electrochemical sensors introduce an independent redox probe which can offer a built-in correction for the analyte's signal.…”

Section: Introductionmentioning

confidence: 99%

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A multifunctional ratiometric electrochemical sensor for combined determination of indole-3-acetic acid and salicylic acid

Wang

et al. 2020

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A multifunctional ratiometric electrochemical sensor for combined determination of indole-3-acetic acid and salicylic acid

Wang

et al. 2020

RSC Adv.

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“…In the last few years, several sensors have been fabricated on various nanomaterials to detect IAA and SA, especially using electrochemical methods [22,23]. A multiwalled carbon nanotubes-chitosan modified glassy carbon electrodes (GCE) was developed to detect both IAA and SA simultaneously in the range of 0.67 to 49 µM with a limit of detection (LOD) of 0.1 µM by using differential pulse voltammetry [23].…”

Section: Introductionmentioning

confidence: 99%

Electro-Oxidation and Simultaneous Determination of Indole-3-Acetic Acid and Salicylic Acid on Graphene Hydrogel Modified Electrode

Cao

Zhu

et al. 2019

Sensors

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A selective and sensitive electrochemical sensor was developed for simultaneous detection of phytohormones indole-3-acetic acid (IAA) and salicylic acid (SA). The sensing interface was fabricated on a porous, three-dimensional networked graphene hydrogel (GH) modified glassy carbon electrode (GCE). The electrocatalytic behavior of IAA and SA on the surface of the modified electrode (GH/GCE) was investigated by cyclic voltammetry and linear sweep voltammetry. Results show that the oxidation reactions of IAA and SA occur at different potentials, which enable their simultaneous detection at the sensing interface. Under optimal conditions, the GH/GCE exhibited good selectivity and stability and its response, unaffected by various interferents, was linear in the range of 4 to 200 µM of IAA and SA. The limit of detection (S/N = 3) achieved were 1.42 µM for IAA and 2.80 µM for SA. The sensor performance was validated by measuring for IAA and SA in real vegetable samples with satisfactory results.

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“…Indole-3-acetic acid (IAA) and salicylic acid (SA) are the two most typical electroactive phytohormones. In recent years, electrochemical sensors based on carbon materials (multiwalled carbon nanotubes (MWCNTs)–chitosan [ 12 ], carboxymethyl cellulose–montmorillonite single walled carbon nanotube [ 13 ], graphene oxide-modified carbon tape [ 14 ], gold nanoparticles-doped graphene hydrogel nanocomposites [ 15 ], graphene hydrogel [ 16 ], MWCNTs–carbon black composites [ 13 ], and carbon cement [ 17 ]) for IAA and SA detection have been reported. However, developing an effective method for sensitive simultaneous detection of phytohormones remains a challenge.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Electrochemical Sensing of Indole-3-Acetic Acid and Salicylic Acid on Poly(L-Proline) Nanoparticles–Carbon Dots–Multiwalled Carbon Nanotubes Composite-Modified Electrode

Kuang

Fan

et al. 2022

Sensors

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Sensitive simultaneous electrochemical sensing of phytohormones indole-3-acetic acid and salicylic acid based on a novel poly(L-Proline) nanoparticles–carbon dots composite consisting of multiwalled carbon nanotubes was reported in this study. The poly(L-Proline) nanoparticles–carbon dots composite was facilely prepared by the hydrothermal method, and L-Proline was used as a monomer and carbon source for the preparation of poly(L-Proline) nanoparticles and carbon dots, respectively. Then, the poly(L-Proline) nanoparticles–carbon dots–multiwalled carbon nanotubes composite was prepared by ultrasonic mixing of poly(L-Proline) nanoparticles–carbon dots composite dispersion and multiwalled carbon nanotubes. Scanning electron microscope, transmission electron microscope, Fourier transform infrared spectroscopy, ultraviolet visible spectroscopy, energy dispersive spectroscopy, cyclic voltammetry, electrochemical impedance spectroscopy, and linear sweep voltammetry were used to characterize the properties of the composite. poly(L-Proline) nanoparticles were found to significantly enhance the conductivity and sensing performance of the composite. Under optimal conditions, the composite-modified electrode exhibited a wide linear range from 0.05 to 25 μM for indole-3-acetic acid and from 0.2 to 60 μM for salicylic acid with detection limits of 0.007 μM and 0.1 μM (S/N = 3), respectively. In addition, the proposed sensor was also applied to simultaneously test indole-3-acetic acid and salicylic acid in real leaf samples with satisfactory recovery.

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Simultaneous Electrochemical Determination of Indole-3-acetic Acid and Salicylic Acid in Pea Roots using a Multiwalled Carbon Nanotube Modified Electrode

Cited by 27 publications

References 31 publications

A multifunctional ratiometric electrochemical sensor for combined determination of indole-3-acetic acid and salicylic acid

A multifunctional ratiometric electrochemical sensor for combined determination of indole-3-acetic acid and salicylic acid

Electro-Oxidation and Simultaneous Determination of Indole-3-Acetic Acid and Salicylic Acid on Graphene Hydrogel Modified Electrode

Simultaneous Electrochemical Sensing of Indole-3-Acetic Acid and Salicylic Acid on Poly(L-Proline) Nanoparticles–Carbon Dots–Multiwalled Carbon Nanotubes Composite-Modified Electrode

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