The determination of copper by atomic absorption spectrophotometry
01 Jan 1961-Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy (Elsevier)-Vol. 17, Iss: 4, pp 459-466
TL;DR: In this paper, the investigation of various factors affecting the determination of copper by atomic absorption spectrophotometry, and the application of the method to the analysis of various agricultural materials are described.
About: This article is published in Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy.The article was published on 1961-01-01. It has received 107 citations till now. The article focuses on the topics: Atomic absorption spectroscopy & Copper.
Citations
More filters
TL;DR: In this article, a method for fractionating soil copper was developed and applied to 24 soils representing a range of British soil types, and it was suggested that the concentration of copper in the soil solution is controlled by equilibria involving specifically adsorbed copper and that the bulk of the available soil copper reserves reside in the organically bound fraction.
Abstract: Summary
A method for fractionating soil copper was developed and applied to 24 soils representing a range of British soil types.
The scheme distinguishes five fractions:
(a)
soil solution and exchangeable copper;
(b)
copper weakly bound to specific sites;
(c)
organically bound copper;
(d)
copper occluded by oxide material; and
(e)
residual copper mainly in clay lattice structures.
Correlation and regression analyses confirmed the general validity of the scheme and indicated an association between free manganese oxides and copper which considerably influences the distribution of copper between the main soil constituents. It is suggested that the concentration of copper in the soil solution is controlled by equilibria involving specifically adsorbed copper and that the bulk of the‘available’soil copper reserves reside in the organically bound fraction.
519 citations
TL;DR: The sulphuric acid-hydrogen peroxide digest is used extensively for the analysis of N, P, K in plant material as discussed by the authors, and the results obtained are comparable to those obtained with the nitric perchloric acid digestion and dry ashing.
Abstract: The sulphuric acid‐hydrogen peroxide digest is used extensively for the analysis of N, P, K in plant material. Advantage can be taken of this single digest solution to analyse for Na, Ca, Hg, Fe, Mn, Zn, Cu, and B in Pinus radiata D. Don needles, with only minor modifications to the digestion technique. The results obtained are comparable to those obtained with the nitric‐perchloric acid digestion and dry ashing. The additional operator time involved for the digestion procedure, compared with other digestion mixtures, is compensated for by having only the one digest to process for all elements. One operator can digest and analyse 120 samples for all eleven elements using manual methods in one week.
290 citations
238 citations
187 citations
TL;DR: The use of organic solvents in atomic absorption spectrophotometry has been investigated in this paper and it has been found that when certain organic solvent types are added to aqueous solutions small increases in analytical sensitivity are obtained.
111 citations
References
More filters
TL;DR: In this paper, the construction of an atomic absorption spectrophotometer is described and its performance is illustrated by results obtained in applying the instrument to the analysis of solutions, and the results confirm that the sensitivity of the absorption method is independent of the excitation potential of the spectral line used.
129 citations
TL;DR: The use of organic solvents in atomic absorption spectrophotometry has been investigated in this paper and it has been found that when certain organic solvent types are added to aqueous solutions small increases in analytical sensitivity are obtained.
111 citations
TL;DR: In this article, the determination of magnesium by atomic absorpare was described, and the results with regard to reproducibility, accuracy and sensitivity were discussed with respect to reproducible, accuracy, and sensitivity.
Abstract: The determination of magnesium by atomic absorpare described, and the results are discussed with regard to reproducibility, accuracy and sensitivity. It is minations can be made with the same ease and rapidity as flame-photometric determinations of sodium and potassium. (auth)
110 citations
84 citations
TL;DR: In this article, the determination of iron and manganese by atomic absorption is described in detail, and it is shown that the most sensitive lines in absorption are Fe 2483·3 A and Mn 2794-8 A.
71 citations