منابع مشابه
Evaluation of a New Forked Platform Design for Graphite Furnace AAS Authors
Graphite furnace techniques are characterized by excellent analytical sensitivity. They are methods of choice for the determination of trace elements in various environmental, biological, and clinical samples. However, they can be plagued by chemical and background interferences which complicate methods development and sample analysis. Using the graphite platform technique, these interferences ...
متن کاملThe Reduction of Matrix Interferences Utilizing the Platform in Graphite Furnace AAS
Graphite furnace techniques are characterized by excellent analytical sensitivity and are the methods of choice for the determination of trace elements in various environmental, biological, and clinical samples. However, they can be plagued by matrix interferences which complicate methods development and sample analysis. This is particularly true for the determination of volatile elements in co...
متن کاملGraphite Furnace AAS: Application of Reduced Palladium as a Chemical Modifier
Chemical modification techniques are widely used in graphite furnace atomic absorption spectrometry (GFAAS). Palladium is a very effective chemical modifier and can be used to stabilize many elements to several hundred degrees higher than the temperatures possible with current methods [1-9]. Of the elements tested, the greatest temperature shifts are achieved for the semi-metallic elements such...
متن کاملGraphite Electrode DC Arc Furnace
Innovative Technology Summary Reports are designed to provide potential users with the information they need to quickly determine if a technology would apply to a particular environmental management problem. They are also designed for readers who may recommend that a technology be considered by prospective users. Each report describes a technology, system, or process that has been developed and...
متن کاملLarge-volume injection electrothermal AAS combined with tungsten-treated pyrolytic graphite furnace: determination of cadmium in tap, snow and river water samples with phosphate modifier.
A large-volume (100 microl) injection-ETAAS with W-treated PG furnace combined with a phosphate modifier was applied to the determination of unpolluted levels of Cd in tap, snow and river-water samples. The limit of detection of 1.1 ng l(-1) was observed for a 4 w/v% NH4H2PO4 modifer. Matrix interference studies were tested for major ion species well found in fresh water. The direct determinati...
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ژورنال
عنوان ژورنال: Analytical Chemistry
سال: 2000
ISSN: 0003-2700,1520-6882
DOI: 10.1021/ac002901w