Electroanalytical studies on green leaf volatiles for potential sensor development

Yogeswaran Umasankar, Glen Christopher Rains, Ramaraja P. Ramasamy

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

An electrochemical study for detecting green leaf plant volatiles from healthy and infected plants has been devised and tested. The electrocatalytic response of plant volatiles at a gold electrode was measured using cyclic voltammetry, amperometric current-time (i-t) analysis, differential pulse voltammetry (DPV) and hydrodynamic experiments. The sensitivity of the gold electrode in i-t analysis was 0.13 mA mM -1 cm -2 for cis-3-hexenol, 0.11 mA mM -1 cm -2 for cis-hexenyl acetate and 0.02 mA mM -1 cm -2 for hexyl acetate. The limits of detection of cis-3-hexenol, cis-hexenyl acetate and hexyl acetate by i-t analysis were 0.5, 0.3 and 0.6 μM, respectively, at a signal to noise ratio of 3. The hydrodynamic studies yielded the electro-kinetic parameters such as diffusivities of plant volatiles in solution and the rate constants for their electrochemical reactions. The DPV and interference studies reveal that the gold electrode possessed high sensitivity for plant volatiles determination in synthetic samples, which imitates both healthy and infected plants.

Original languageEnglish
Pages (from-to)3138-3145
Number of pages8
JournalAnalyst
Volume137
Issue number13
DOIs
Publication statusPublished - Jul 7 2012

Fingerprint

Acetates
Gold
Voltammetry
sensor
Electrodes
acetate
Sensors
Hydrodynamics
electrode
gold
Kinetic parameters
Cyclic voltammetry
Rate constants
Viridiplantae
Signal to noise ratio
hydrodynamics
Signal-To-Noise Ratio
Limit of Detection
signal-to-noise ratio
diffusivity

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy
  • Electrochemistry

Cite this

Electroanalytical studies on green leaf volatiles for potential sensor development. / Umasankar, Yogeswaran; Rains, Glen Christopher; Ramasamy, Ramaraja P.

In: Analyst, Vol. 137, No. 13, 07.07.2012, p. 3138-3145.

Research output: Contribution to journalArticle

Umasankar, Y, Rains, GC & Ramasamy, RP 2012, 'Electroanalytical studies on green leaf volatiles for potential sensor development', Analyst, vol. 137, no. 13, pp. 3138-3145. https://doi.org/10.1039/c2an35350d
Umasankar, Yogeswaran ; Rains, Glen Christopher ; Ramasamy, Ramaraja P. / Electroanalytical studies on green leaf volatiles for potential sensor development. In: Analyst. 2012 ; Vol. 137, No. 13. pp. 3138-3145.
@article{d4dc988de4ae433fb9467f95ab631aca,
title = "Electroanalytical studies on green leaf volatiles for potential sensor development",
abstract = "An electrochemical study for detecting green leaf plant volatiles from healthy and infected plants has been devised and tested. The electrocatalytic response of plant volatiles at a gold electrode was measured using cyclic voltammetry, amperometric current-time (i-t) analysis, differential pulse voltammetry (DPV) and hydrodynamic experiments. The sensitivity of the gold electrode in i-t analysis was 0.13 mA mM -1 cm -2 for cis-3-hexenol, 0.11 mA mM -1 cm -2 for cis-hexenyl acetate and 0.02 mA mM -1 cm -2 for hexyl acetate. The limits of detection of cis-3-hexenol, cis-hexenyl acetate and hexyl acetate by i-t analysis were 0.5, 0.3 and 0.6 μM, respectively, at a signal to noise ratio of 3. The hydrodynamic studies yielded the electro-kinetic parameters such as diffusivities of plant volatiles in solution and the rate constants for their electrochemical reactions. The DPV and interference studies reveal that the gold electrode possessed high sensitivity for plant volatiles determination in synthetic samples, which imitates both healthy and infected plants.",
author = "Yogeswaran Umasankar and Rains, {Glen Christopher} and Ramasamy, {Ramaraja P.}",
year = "2012",
month = "7",
day = "7",
doi = "10.1039/c2an35350d",
language = "English",
volume = "137",
pages = "3138--3145",
journal = "The Analyst",
issn = "0003-2654",
publisher = "Royal Society of Chemistry",
number = "13",

}

TY - JOUR

T1 - Electroanalytical studies on green leaf volatiles for potential sensor development

AU - Umasankar, Yogeswaran

AU - Rains, Glen Christopher

AU - Ramasamy, Ramaraja P.

PY - 2012/7/7

Y1 - 2012/7/7

N2 - An electrochemical study for detecting green leaf plant volatiles from healthy and infected plants has been devised and tested. The electrocatalytic response of plant volatiles at a gold electrode was measured using cyclic voltammetry, amperometric current-time (i-t) analysis, differential pulse voltammetry (DPV) and hydrodynamic experiments. The sensitivity of the gold electrode in i-t analysis was 0.13 mA mM -1 cm -2 for cis-3-hexenol, 0.11 mA mM -1 cm -2 for cis-hexenyl acetate and 0.02 mA mM -1 cm -2 for hexyl acetate. The limits of detection of cis-3-hexenol, cis-hexenyl acetate and hexyl acetate by i-t analysis were 0.5, 0.3 and 0.6 μM, respectively, at a signal to noise ratio of 3. The hydrodynamic studies yielded the electro-kinetic parameters such as diffusivities of plant volatiles in solution and the rate constants for their electrochemical reactions. The DPV and interference studies reveal that the gold electrode possessed high sensitivity for plant volatiles determination in synthetic samples, which imitates both healthy and infected plants.

AB - An electrochemical study for detecting green leaf plant volatiles from healthy and infected plants has been devised and tested. The electrocatalytic response of plant volatiles at a gold electrode was measured using cyclic voltammetry, amperometric current-time (i-t) analysis, differential pulse voltammetry (DPV) and hydrodynamic experiments. The sensitivity of the gold electrode in i-t analysis was 0.13 mA mM -1 cm -2 for cis-3-hexenol, 0.11 mA mM -1 cm -2 for cis-hexenyl acetate and 0.02 mA mM -1 cm -2 for hexyl acetate. The limits of detection of cis-3-hexenol, cis-hexenyl acetate and hexyl acetate by i-t analysis were 0.5, 0.3 and 0.6 μM, respectively, at a signal to noise ratio of 3. The hydrodynamic studies yielded the electro-kinetic parameters such as diffusivities of plant volatiles in solution and the rate constants for their electrochemical reactions. The DPV and interference studies reveal that the gold electrode possessed high sensitivity for plant volatiles determination in synthetic samples, which imitates both healthy and infected plants.

UR - http://www.scopus.com/inward/record.url?scp=84862169160&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84862169160&partnerID=8YFLogxK

U2 - 10.1039/c2an35350d

DO - 10.1039/c2an35350d

M3 - Article

VL - 137

SP - 3138

EP - 3145

JO - The Analyst

JF - The Analyst

SN - 0003-2654

IS - 13

ER -