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research article

Direct electrothermal atomic absorption spectrometric determination of lead in wine

Slaveykova, Vera I.  
•
Tsalev, Dimiter L.
•
Maskill, Roger
1996
Ciencia (Maracaibo)

A method for direct electrothermal at. absorption spectrometric detn. of lead in wine is described. A mixed chem. modifier contg. 20 mg of tungsten as ammonium paratungstate and 4 mg palladium as palladium chloride is applied to thermally stabilize Pb in wine up to pyrolysis temps. of 800-850 DegC. Matrix-matched stds. are used for calibration. The characteristic mass for integrated absorbance measurements (mo) is 20 pg, and the limit of detection is 3 mg/L for a wine sample. The accuracy and precision of the method were assessed by analyzing the ref. CQiR and CQiB materials (Food Science Lab., Ministry of Agriculture, Fisheries and Food, UK).

  • Details
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Type
research article
Author(s)
Slaveykova, Vera I.  
Tsalev, Dimiter L.
Maskill, Roger
Date Issued

1996

Published in
Ciencia (Maracaibo)
Volume

4

Issue

2

Start page

165

End page

172

Subjects

Wine (direct electrothermal at. absorption spectrometric detn. of lead in wine)

•

lead detn wine

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
GR-SLV  
Available on Infoscience
November 27, 2007
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/14951
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