Determination of trace aluminum in natural waters by ion exchanger fluorometry.
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چکیده
منابع مشابه
Determination of Trace Anions in High Purity Waters by High Volume/Direct Injection Ion Chromatography
INTRODUCTION There has been considerable interest in the determination of anions at trace levels by IC. For example, the Electric Power Research Institute (EPRI) has established IC as the analytical technique for determining sodium, chloride, and sulfate down to 0.25 μg/L (ppb) in power plant waters. For high-purity water used in semiconductor processing, the Semiconductor Equipment and Materia...
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Naphthenic acids (NAs) have been implicated as some of the most toxic substances in oil sands leachates and identified as priority substances impacting on aquatic environments. As a group of compounds, NAs are not well characterized and comprise a large group of saturated aliphatic and alicyclic carboxylic acids found in hydrocarbon deposits (petroleum, oil sands bitumen, and crude oils). Descr...
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Samples ( 1 and 5 liters) of filtered seawater (0.5 Jo) at its natural pH were equilibrated with several ,Gi of either carrier-free zinc-65 or carrier-free cobalt-60 and allowed to flow down individual resin columns. Retention of the ions was estimated by examining the eluate for activity; both cobalt and zinc were completely retained by the resin from both the 1 and 5 liter samples of seawater.
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An alternative method for the determination of trace levels of fluoride in drinking and sea-water samples is presented. It is based on the formation of the aluminium monofluoride complex in excess of Al3+ and separation of the two species formed (AlF2+ and Al3+) in a small (5 cm long, CG2) ion exchange guard column. The final determination is accomplished by both ICP-MS specific detection and p...
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A Sensitive and precise differentialpulse stripping voltammetric method at static mercury dropping electrode (SMDE) has been applied to measure zinc(II) by anodic stripping at pH∼4 and aluminum(III) by adsorptive cathodic stripping mode in presence of 1×10M N,N` -bis-2-hydroxyethyl-2-amino-ethane sulphonic acid (BES) buffer at pH~7.1 and 2×10 M of alizarin red S as a ligand in drinking water sa...
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ژورنال
عنوان ژورنال: Analytical Sciences
سال: 1989
ISSN: 0910-6340,1348-2246
DOI: 10.2116/analsci.5.549