Graphite furnace atomic absorption spectrophotometry GFAAS

Therefore the sampled plants were not cleaned from adhering soil and dust particles, because animals harvesting these plants as fodder do not clean them either. This procedure is recommended if the entry of contaminants into the nutrition chain is under consideration (Markert, 1995). After a microwave digestion the samples were analyzed using Graphite Furnace Atomic Absorption Spectrophotometry (GFAAS). Approximately 9% of the sampled plants were contaminated with arsenic >2 ppm (Fig. 5). 

Curtis, P. R., and Grusovin, J. (1985). Determination of molybdenum in plant tissue by graphite furnace atomic absorption spectrophotometry (GFAAS). Commun. Soil Sci. Plant Anal. 16 1279-91. 

A number of analytical techniques have been used to determine ppm to ppt levels of vanadium in biological materials. These include neutron activation analysis (NAA), graphite furnace atomic absorption spectrometry (GFAAS), spectrophotometry, isotope dilution thermal ionization-mass spectrometry (IDMS), and inductively coupled plasma atomic emission spectrometry (ICP-AES). Table 6-1 summarizes the analytical methods for determining vanadium in biological materials. 

An analytical laboratory can analyze the dust from either a wipe or a vacuum cleaner bag using ICP (inductively coupled plasma) spectroscopy for about 25. Other methods that are used are flame or graphite furnace atomic absorption spectrophotometry (FAAS or GFAAS) and energy-dispersive X-ray fluorescence (XRF). ... 

GFAAS = graphite furnace (flameless) atomic absorption spectroscopy TLC = thin layer chromatography HFP-AES = high frequency plasma-atomic emission spectroscopy NAA = neutron atomic analysis ICP-AES = inductively coupled plasma-atomic emission spectroscopy AAS = atomic absorption spectrometry GSE = graphite spectroscopic electrode UV = ultraviolet spectrophotometry PD = photodensitometer and (3,5-diBr-PADAP) = 2(-3,-5-dibromo-2-pyridylazo)-5- diethyl-ami nophenol. 

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