Determination of microgram amounts of asbestos in mixtures by infrared spectrometry

Luoma, Greg A.; Yee, Lannie K; Rowland, R. D.

doi:10.1021/ac00249a064

Cited by 8 publications

(3 citation statements)

References 12 publications

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“…The FTIR method is still not officially defined. It is well known that different types of asbestos can be identified and quantified by means of FTIR spectroscopy: strong and specific sharp peaks can be found in the absorption spectra in the 4000–400 cm −1 wavenumber region [ 12 , 13 ]. Several studies have demonstrated that FTIR is suitable for the quantification of micrograms of different kinds of asbestos in host matrices, and the FTIR limit of detection could be even less than 1% w / w in the case of bulk samples [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Diffuse Reflectance Infrared Fourier Transform Spectroscopy for the Determination of Asbestos Species in Bulk Building Materials

et al. 2014

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Diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy is a well-known technique for thin film characterization. Since all asbestos species exhibit intense adsorptions peaks in the 4000–400 cm−1 region of the infrared spectrum, a quantitative analysis of asbestos in bulk samples by DRIFT is possible. In this work, different quantitative analytical procedures have been used to quantify chrysotile content in bulk materials produced by building requalification: partial least squares (PLS) chemometrics, the Linear Calibration Curve Method (LCM) and the Method of Additions (MoA). Each method has its own pros and cons, but all give affordable results for material characterization: the amount of asbestos (around 10%, weight by weight) can be determined with precision and accuracy (errors less than 0.1).

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Section: Introductionmentioning

confidence: 99%

Diffuse Reflectance Infrared Fourier Transform Spectroscopy for the Determination of Asbestos Species in Bulk Building Materials

et al. 2014

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“…Other authors report that inhalation of asbestos particles has been found to cause a number of illnesses such as asbestosis (diffuse fibrous scarring of the lungs), pleural plaques (localized fibrous scars lining the space surrounding the lungs), pneumoconiosis, lung cancer (bronchogenic carcinoma) and malignant mesothelioma (malignant tumors arising from the pleural, pericardial, or peritoneal linings). Detailed reports are found in Skinner et al (1988), Luoma et al (1982), and Guthrie (1992). The asbestos variety composed mainly by amphibole minerals are potentially more dangerous than those com-posed by serpentine minerals because of their particle size and shape.…”

Section: Introductionmentioning

confidence: 99%

“…The structures of such minerals have also been investigated abundantly by spectroscopic techniques and IR data of each mineralogical species are well documented in the literature (Gasden et al, 1970;Griffiths, 1987;Luoma et al, 1982).…”

Section: Introductionmentioning

confidence: 99%

Quantitative determination of chrysotile asbestos in bulk materials by combined Rietveld and RIR methods

Gualtieri

Artioli

1995

Powder Diffr.

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Because of their potential to induce a number of pathological diseases and their widespread industrial usage in the past, the fibrous minerals forming asbestos have been the subject of a number of studies in the past. Although quantification of asbestos minerals by optical and electron microscopy (SEM, TEM) is a routine technique in the case of dispersed airborn fibers, the detection and the quantification of small amount of fibrous minerals like chrysotile in bulk materials such as building materials is exceedingly difficult. A method for the detection and evaluation of asbestos minerals in massive samples is described, based on a combination of Rietveld and RIR (Reference Intensity Ratio) methods. Lower detection limits are about 0.5-1.0 wt % for chrysotile, depending on powder pattern, counting statistics, and matrix absorption. The chrysotile wt % determined on powder diffraction profiles collected on a conventional instrument is precise to about 1.0 wt % absolute (relative error in the range 0-10%). The technique is of straightforward application. If compared with the commonly used microscopic or spectroscopic techniques, it is of much advantage from the point of view of time, and the results are more accurate and statistically significant of the bulk material. A model for the cylindrically disordered structure of fibrous chrysotile is especially developed for the simulation of the X-ray powder patterns, and it is proposed here.

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Determination of chrysotile content of asbestos cement dusts by IR-spectroscopy

et al. 1984

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Determination of microgram amounts of asbestos in mixtures by infrared spectrometry

Cited by 8 publications

References 12 publications

Diffuse Reflectance Infrared Fourier Transform Spectroscopy for the Determination of Asbestos Species in Bulk Building Materials

Diffuse Reflectance Infrared Fourier Transform Spectroscopy for the Determination of Asbestos Species in Bulk Building Materials

Quantitative determination of chrysotile asbestos in bulk materials by combined Rietveld and RIR methods

Determination of chrysotile content of asbestos cement dusts by IR-spectroscopy

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