Comparison of decomposition methods for the analysis of atmospheric particulates by atomic absorption spectrometry

Yamashige, Takashi; Yamamoto, Manabu; Sunahara, Hiroshi

doi:10.1039/an9891401071

Cited by 53 publications

(23 citation statements)

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“…Airborne particulate matter has been collected in many environmental studies using either so called low-volume samplers ("Low-vol") with an air flow of about 1-3 m 3 h -1 [1,2], or so-called high-volume samplers ("Hi-vol") with an air flow of usually between 60 and 90 m 3 h -1 [3,4]. Personal samplers with an air flow of 2 L min -1 [5] have also been used, especially for exposure assessment.…”

Section: Introductionmentioning

confidence: 99%

The homogeneity of heavy metal deposition on glass fibre filters collected using a high-volume sampler in the vicinity of an opencast chrome mine complex at Kemi, Northern Finland

2003

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The homogeneity of heavy metal (Cr, Ni, Cu, Fe and Cd) distribution on glass fibre filters (Munktell MG 160, 203 x 254 mm, 75 g m(-2)) collected using a high-volume sampler (Wedding & Associates) at an opencast chrome mine complex at Kemi, Northern Finland was studied. The heavy metals in the total suspended particulate (TSP) material were analysed by inductively coupled plasma atomic emission spectrometry (ICP-AES) or graphite furnace atomic absorption spectrometry (GFAAS). The glass fibre filters were digested in a microwave oven using a mixture of aqua regia+HF acids. There was significant non-uniform distribution of heavy metals on glass fibre filters. The TSP material containing chromite was very difficult to dissolve by acid digestion. The results from X-ray fluorescence spectrometry (XRF), and from energy filtering transmission electron microscope (EFTEM) equipped with energy dispersive X-ray spectrometer (EDS), showed that insoluble residue left after microwave oven digestion with aqua regia+HF acids was probably partly due to chemical reactions occurring during microwave heating.

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Section: Introductionmentioning

confidence: 99%

The homogeneity of heavy metal deposition on glass fibre filters collected using a high-volume sampler in the vicinity of an opencast chrome mine complex at Kemi, Northern Finland

2003

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“…Although the highly sensitive spectrophotometric determination of vanadium with pyridylazoresorcinol (PAR) is often used as a standard method [14], it suffers from poor selectivity and interfering effect of some metal ions. Other methods for the determination of vanadium including ICP-AES [15], voltammetry [16] and AAS [17] have also some limitations in terms of high cost of instruments used in routine analysis and matrix effects. These deficiencies have encouraged the authors to develop a facile, sensitive, accurate and reliable method for the determination of trace amounts of vanadium using variamine blue (VB) as a chromogenic reagent.…”

Section: Introductionmentioning

confidence: 99%

Spectrophotometric determination of vanadium using variamine blue and its application to synthetic, environmental and biological samples

Kumar

Revanasiddappa

2005

JICS

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A simple, rapid and accurate spectrophotometric method is described for the determination of trace amounts of vanadium using variamine blue (VB) as a chromogenic reagent. The method is based on the oxidation of variamine blue to form a violetcolored species on reaction with vanadium(V), having an absorption maximum at 570 nm. Beer's law is obeyed in the range of 0.1-2.0 g ml -1 . The molar absorptivity and Sandell's sensitivity were found to be 1.65 10 4 l mol -1 cm -1 and 0.003 g cm -2 , respectively. Optimum reaction conditions were evaluated in order to delimit the linear range. The effect of interfering ions on the determination is described. The proposed method has been successfully applied to the determination of vanadium in steel, pharmaceutical, environmental, and biological samples.

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“…These methods require dissolution. Usually, wet ashing with different combinations of mineral acids, such as HNO 3 , HNO 3 ϩ HCl, HNO 3 ϩ HCl ϩ HF, and HNO 3 ϩ HClO 4 , is applied (3)(4)(5). The use of closed systems, especially with microwaves, for acid digestion has become a generally used method in the last few years.…”

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confidence: 99%

Determination of Trace Elements in Power Plant Emissions by Inductively Coupled Plasma Mass Spectrometry: Comparison with Other Spectrometric Techniques

Bettinelli

Spezia

Baroni

et al. 1998

Microchemical Journal

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Comparison of decomposition methods for the analysis of atmospheric particulates by atomic absorption spectrometry

Cited by 53 publications

References 0 publications

The homogeneity of heavy metal deposition on glass fibre filters collected using a high-volume sampler in the vicinity of an opencast chrome mine complex at Kemi, Northern Finland

The homogeneity of heavy metal deposition on glass fibre filters collected using a high-volume sampler in the vicinity of an opencast chrome mine complex at Kemi, Northern Finland

Spectrophotometric determination of vanadium using variamine blue and its application to synthetic, environmental and biological samples

Determination of Trace Elements in Power Plant Emissions by Inductively Coupled Plasma Mass Spectrometry: Comparison with Other Spectrometric Techniques

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