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Direct determination of lead in plant materials by atomic absorption spectrophotometry

✍ Scribed by Fletcher, K. (author)

Publisher
John Wiley and Sons
Year
1971
Tongue
English
Weight
176 KB
Volume
22
Category
Article
ISSN
0022-5142

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✦ Synopsis

Abstract

Background absorption is shown to result in spuriously high lead values in the analysis of plant digest solutions by atomic absorption Spectrophotometry. By measuring the absorbance of a spectral continuum in the region of the absorption line a correction can be applied. The corrected values are shown to be in reasonable agreement with values obtained cobrimetrieally for a wide range of vegetable foods.

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Determination of copper in foods by atom
Determination of copper in foods by atomic absorption spectrophotometry
✍ A. G. Cameron; D. R. Hackett πŸ“‚ Article πŸ“… 1970 πŸ› John Wiley and Sons 🌐 English βš– 240 KB πŸ‘ 1 views

## Abstract A method for determining copper in a wide range of foods by atomic absorption spectrophotometry is described and shown to be reliable and sensitive. It is shown that, when copper is chelated and extracted into ketone, very high sensitivity may be achieved; copper in aqueous extracts can