Skip to main content

An Amperometric Mercury Ions Sensor Constructed by Using Porous Tubular Iron Hydroxide Nanoparticles

Buy Article:

$113.00 plus tax (Refund Policy)

Abstract:

The porous tubular Fe(OH)3 nanoparticles were prepared by the Kirkendall-based fabrication route and characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Using porous tubular Fe(OH)3 nanoparticles modified glassy carbon electrode (GCE) as the working electrode, a very simple and highly sensitive mercury (II) sensor was constructed. The electrochemical behavior of mercury (II) on the developed sensor has been explored by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). A pair of well defined redox peaks (Epc = 0.241 V; Epa = 0.287 V) were observed in 0.10 M phosphate buffer solutions (pH 7.0). The prepared sensor showed a wide linear range from 1.0 × 10–9 M to 8.0 × 10–5 M (a correlation coefficient of 0.998) and a low detection limit of 3.0 × 10–10 M at a signal-to-noise ratio of 3. The acceptable reproducibility, long-term stability and anti-interference ability of the sensor were also assessed. Moreover, the method was successfully applied to the detection of mercury in real sample.

Keywords: ELECTROCHEMICAL; MERCURY IONS; POROUS TUBULAR IRON HYDROXIDE NANOPARTICLES; SENSOR

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/sl.2011.1710

Publication date: October 1, 2011

More about this publication?
  • The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • ingentaconnect is not responsible for the content or availability of external websites
asp/senlet/2011/00000009/00000005/art00030
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more