Skip to main content
padlock icon - secure page this page is secure

Determination of copper, zinc, selenium, lead and cadmium in potatoes (Solanum tuberosum L.) using potentiometric stripping methods

Buy Article:

$61.00 + tax (Refund Policy)

Potentiometric stripping analysis was used to determine simultaneously the content of zinc(II), cadmium(II), lead(II) and copper(II) in potatoes, whereas the concentration of selenium was determined by cathodic stripping potentiometric analysis. Metal cations were extracted from potatoes by hydrogen peroxide/hydrochloric acid treatments. The relative standard deviation of the methods ranged from 2.3 to 4.1% and the detection limits were lower than 2.5 g kg−1. The results obtained with the proposed methods were compared with those obtained with graphite furnace atomic absorption spectroscopy, a common method for determining metals. The results of the two methods agreed to within 6.1%. Twelve samples of yellow flesh potatoes from different cultivars were analysed. Of all the metals determined, Cu and Zn were the most abundant with concentrations between 0.5 and 4.6 mg kg−1. Selenium was only found in three samples in very low amounts (<0.1 mg kg−1), whilst Pb and Cd concentrations were in the range 0.01 − 0.27 mg kg−1.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: cadmium; copper; lead; potatoes; selenium; stripping potentiometry; zinc

Document Type: Research Article

Affiliations: 1: Department of Organic and Biological Chemistry University of Messina Salita Sperone 31 I-98166 Messina Italy 2: Agriculture and Forest Assessorship Sicilian Region Via Sicilia 6 Spadafora Messina Italy

Publication date: July 1, 2004

More about this publication?
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect 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