Fourier transform infrared spectrometry: a versatile technique for real world samples†

Rintoul, Llewellyn; Panayiotou, Helen; Kokot, Serge; George, Graeme A.; Cash, Gregory; Frost, Ray L.; Bui, Thuy; Fredericks, Peter M.

doi:10.1039/a707111f

Cited by 44 publications

(22 citation statements)

References 20 publications

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“…The positions of the bands in the regions of 4000-3000 and 950-600 cm -~ are very similar to those found in the KBr-pellet spectrum. The observed frequencies of the Si-O stretching vibrations near 1000 cm -~ are shifted slightly downward from those observed in IR transmission spectroscopy as a result of the optical physics of the system (Koenig, 1992;Rintoul et al, 1998). The ATR is a rapid, non-destructive technique and is a very useful first step to characterize minerals.…”

Section: Comparison Of the Sample-preparation Methodsmentioning

confidence: 99%

“…Dispersive IR spectrometers are slowly being replaced by quicker and more sensitive Fourier transform (FT) instruments (Rintoul et al, 1998). The greater sensitivity of the FTIR spectrometers is related to the continuous detection of the entire transmitted energy simultaneously, using interferometers, and rapid Fourier transformation of the interferogram into a spectrum (Koenig, 1992;Russell and Fraser, 1994).…”

Section: Introductionmentioning

confidence: 99%

“…However, only the increased sensitivity of FTIR spectrometers makes the ATR method a simple and routine technique (Rintoul et al, 1998). ATR has been used extensively to investigate adsorption of organic substances on minerals.…”

Section: Introductionmentioning

confidence: 99%

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Baseline Studies of the Clay Minerals Society Source Clays: Infrared Methods

Madejová

Komadel

2001

Clays and clay miner.

998

425

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Infrared (IR) spectroscopy has a long and successful history as an analytical technique and is used extensively (McKelvy et al., 1996; Stuart, 1996). It is mainly a complementary method to X-ray diffraction (XRD) and other methods used to investigate clays and clay minerals. It is an economical, rapid and common technique because a spectrum can be obtained in a few minutes and the instruments are sufficiently inexpensive as to be available in many laboratories. An IR spectrum can serve as a fingerprint for mineral identification, but it can also give unique information about the mineral structure, including the family of minerals to which the specimen belongs and the degree of regularity within the structure, the nature of isomorphic substituents, the distinction of molecular water from constitutional hydroxyl, and the presence of both crystalline and non-crystalline impurities (Farmel, 1979).

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Section: Comparison Of the Sample-preparation Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Baseline Studies of the Clay Minerals Society Source Clays: Infrared Methods

Madejová

Komadel

2001

Clays and clay miner.

998

425

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“…Spectroscopy is also now widely used in cultural heritage conservation to characterize a broad range of artifact classes (Low & Baer 1977, Bitossi et al 2005. FTIR is an analytical tool that, when used in examining hard biological tissues, stands out for its robustness, ease of sample preparation, its simplicity of operation and the ability to make structural elucidations (Rintoul et al 1998, Lyman et al 2001. The resolving power of FTIR has been applied in such diverse fields as forensic fiber identification (Kirkbride & Tungol 1999) and bacterial species identification (Timmins et al 1998).…”

Section: Infrared Spectroscopymentioning

confidence: 99%

Forensic identification of elephant and giraffe hair artifacts using HATR FTIR spectroscopy and discriminant analysis

Espinoza

Baker²,

Moores³

et al. 2008

Endang. Species. Res.

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“…All these advantages make that ATR-FTIR spectroscopy to be used for: analysis of processes at surfaces (Freger and Ben-David, 2005), surface modification (Lehocký et al 2003;Janorkar et al, 2004), surface degradation (Bokria et al, 2002), study of enzymatic degradation of a substrate film attached to a solid surface (Snabe et al 2002), study of sunscreens on human skin (Rintoul et al, 1998), research of cereal, food and wood systems (D'Amico et al 2012), detection of microbial metabolic products on carbonate mineral surfaces (Bullen et al, 2008), self-assembled thin films (Gershevitz et al 2004), grafted polymer layers (Granville et al 2004), adsorption processes ( (Jiang et al 2005;Mangoni et al 2004) and synthetic (Freger et al 2002) materials.…”

Section: Attenuated Total Reflection -Fourier Transform Infrared (Atrmentioning

confidence: 99%

Application of FTIR Spectroscopy in Environmental Studies

Simonescu¹

2012

Advanced Aspects of Spectroscopy

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Figure 1. Schematic representation of the electromagnetic spectrum (adapted from http://www2.chemistry.msu.edu/faculty/reusch/VirtTxtJml/Spectrpy/UV-Vis/spectrum)? Advanced Aspects of Spectroscopy 50Infrared radiation is divided into:near (NIR, ν = 10,000 -4,000 cm -1 ); -middle (MIR, ν = 4,000 -200 cm -1 ) and -far (FIR, ν = 200 -10 cm -1 ).Because all compounds show characteristic absorption/emission in the IR spectral region and based on this property they can be analyzed both quantitatively and qualitatively using FT-IR spectroscopy.Today FT-IR instruments are digitalized and are faster and more sensitive than the older ones. FT-IR spectrometers can detect over a hundred volatile organic compounds (VOC) emitted from industrial and biogenic sources. Gas concentrations in stratosphere and troposphere were determined using FT-IR spectrometers (Puckrin et al., 1996).In case of environmental studies FTIR Spectroscopy is used to analyze relevant amount of compositional and structural information concerning environmental samples (Grube et al., 2008). The analysis can be performed also to determine the nature of pollutants, but also to determine the bonding mechanism in case of pollutants removal by sorption processes. Techniques for measuring gas pollutants such as continuous air pollutants analyzer (SO2, NO2, O3, NH3), on-line gas chromatography (GC) used simple real-time instruments to quantify gas pollutants. They need to use several sensors in order to analyze multiple gas pollutants simultaneously.FT-IR spectroscopy coupled with other spectroscopic techniques such as AAS (atomic absorption spectroscopy) have been used to assess the impact of industrial and natural activities on air quality (Kumar et al., 2005;Childers et al., 2001).In addition to the traditional transmission FTIR (T-FTIR) methods (e.g. KBr-pellet or mull techniques), modern reflectance techniques are widely used today in environmental, agricultural, pharmaceuticals, and food studies. These modern techniques are attenuated total reflection FTIR (ATR-FTIR), and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). The choice of the method to be used depends on many factors such as: the information needed (bulk versus surface analysis), the physical form of the sample, the time required for sample preparation (Majedová et al., 2003).In the following there will be presented some of the most important research studies related to the involvement of FTIR spectroscopy in environmental studies. Traditional transmission FT-IR (T-FTIR) spectroscopy in environmental studiesTransmission spectroscopy is the oldest and most commonly used method for identifying either organic or inorganic chemicals providing specific information on molecular structure, chemical bonding and molecular environment. It can be applied to study solids, liquids or gaseous samples being a powerful tool for qualitative and quantitative studies. Application of FTIR Spectroscopy in Environmental Studies 51FTIR instrument's principle of function is the following: IR radi...

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Fourier transform infrared spectrometry: a versatile technique for real world samples†

Cited by 44 publications

References 20 publications

Baseline Studies of the Clay Minerals Society Source Clays: Infrared Methods

Baseline Studies of the Clay Minerals Society Source Clays: Infrared Methods

Forensic identification of elephant and giraffe hair artifacts using HATR FTIR spectroscopy and discriminant analysis

Application of FTIR Spectroscopy in Environmental Studies

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