The application of a wide-slot nitrous oxide-nitrogen-acetylene burner for the atomic-absorption spectrophotometric determination of aluminium, arsenic and tin in steels by the single-pulse nebulisation technique

Abstract

Single-pulse nebulisation of 10 per cent. m/V iron or steel solutions into a nitrogen-diluted nitrous oxideacetylene flame maintained on a specially designed wide-slot burner is a useful technique for the determination of tin, arsenic and soluble aluminium in iron and steels. Use of this method avoids the need for prior separation of the analyte. A deuterium lamp was found to be unsatisfactory for measuring the background (non-specific) absorption when determining aluminium and tin, the explanation for which is postulated.

Determination of copper and zinc in serum by derivative atomic absorption spectrometry using the microsampling technique

“…[9][10][11][12] Hence, ETAAS requires high consumption of reagents, sample and time. The microsampling technique, [13][14][15][16][17] in which discrete samples are nebulized, has been successfully used for the analysis of solutions with a high content of dissolved solids, and has been shown to be very effective in enhancing the selectivity of trace metals in samples with complex matrices. This technique requires low sample amounts and involves less risk of sample contamination and loss.…”

Correction for interferences of spectral origin with continuum source, echelle wavelength modulated atomic absorption spectrometry

“…It has been pointed out recently that obtaining corrections for background spectral interferences in AA can be difficult and sometimes questionable for samples of complex or unusual matrices, when using the commonly employed means of background correction (5)(6)(7)(8). Lovett, Welch, and Parsons (9) have reviewed the interferences of spectral origin which can occur in AA analysis; of these, the most important are (a) scattering of radiation and broadband absorption, (b) non- analyte absorbing lines in the spectral bandwidth, and (c) direct absorption spectral line overlap.…”

“…Electrolyte solutions containing K0H-K2C03 (3), ammonium formate (4,5), NH4C1-HC1 (6), NH4C1 and NH4I (7,8), NH4CI-H2C2O4 ( 9), (NH4)2S04 (10), isopropanol (11), and dimethylsulfoxide (12) have been reported for the electrodeposition of actinide elements.…”

Ferrous metallurgy

“…The analysis of steels for tin has been accomplished directly from solution with the Hoesch injection technique (20), after extraction (460), and preconcentration by precipitation or extraction (84), through evolution of the hydride (219), and by vaporization from carbon or graphite tube furnaces (35,53,564). Single pulse nebulization for analysis of steel solutions has also been reported (681). Tin can be determined without any preconcentration steps in steels at the 0.01-ppm level by atomic fluorescence spectrometry (193,448).…”