𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Determination of copper in foods by atomic absorption spectrophotometry

✍ Scribed by A. G. Cameron; D. R. Hackett

Publisher
John Wiley and Sons
Year
1970
Tongue
English
Weight
240 KB
Volume
21
Category
Article
ISSN
0022-5142

No coin nor oath required. For personal study only.

✦ Synopsis

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 be determined at a level of 0.003 ppm. The main problem of the method is found to be sample preparation which for many foods is lengthy. Direct sampling, dry ashing and wet oxidation are described and the method of atomic absorption is compared with a colorimetric procedure.

πŸ“œ SIMILAR VOLUMES

Determination of copper and manganese in
Determination of copper and manganese in vitamin-mineral tablets by atomic absorption spectrophotometry
✍ Young Soon Chae; James P. Vacik; William H. Shelver πŸ“‚ Article πŸ“… 1973 πŸ› John Wiley and Sons 🌐 English βš– 409 KB πŸ‘ 1 views

I 10 20 30 , , . I 10 20 30 Figure 2-Chromutogrcim of fritn~~thylsilyl dericutice o f neonrycitr wirh: ( n ) proper unroiirr/ of trimi~fliylsilylrlielietlrglritnirrc~. urrd ( h ) e.xcess /rimetliyl.~ilpldi~~tlrylunririe. DlSCIJSSlON k a u s c of the many potential sources of difliculties, strict ad

Determination of aluminum in biological
Determination of aluminum in biological fluids by furnace atomic absorption spectrophotometry
✍ Dr. Keith E. Johnson; Ronald G. Treble πŸ“‚ Article πŸ“… 1992 πŸ› John Wiley and Sons 🌐 English βš– 415 KB πŸ‘ 1 views

Detailed procedures were developed for the furnace atomic absorption spectrophotometry (FAAS) determination of aluminum (Al) in serum, urine, cerebrospinal fluid (CSF), and proportionated dialysate. Of particular note were the use of Mg (N0&-6H20 as a matrix modifier and the employment of the standa

Determination of Silicones in Vegetable
Determination of Silicones in Vegetable Oils by Nonflame Atomic Absorption Spectrophotometry
✍ Kundu, M. K. πŸ“‚ Article πŸ“… 1977 πŸ› John Wiley and Sons βš– 405 KB πŸ‘ 1 views

## Abstract The determination of silicone in oil was based upon conversion of the oil into water‐soluble form (Na/K‐Soap) in a teflon tube, extraction of the water‐insoluble, solvent‐soluble silicones with petroleum ether, and determination of the silicones in some suitable organic solvent by nonfl

Direct determination of lead in plant ma
Direct determination of lead in plant materials by atomic absorption spectrophotometry
✍ Fletcher, K. (author) πŸ“‚ Article πŸ“… 1971 πŸ› John Wiley and Sons 🌐 English βš– 176 KB πŸ‘ 1 views

## 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 v