Characterization of Historic Silk by Polarized Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy for Informed Conservation

When assessing historic textiles and considering appropriate conservation, display, and storage strategies, characterizing the physical condition of the textiles is essential. Our work has concentrated on developing nondestructive or micro-destructive methodologies that will permit this. Previously, we have demonstrated a correlation between the physical deterioration of unweighted and “pink” tin (IV) chloride weighted silk and certain measurable spectroscopic and chromatographic signatures, derived from polarized Fourier transform infrared attenuated total reflectance (FTIR-ATR) spectroscopy (Pol-ATR) and high-performance liquid chromatography (HPLC) microsampling analyses. The application of the Pol-ATR technique to aged silk characterization has now been extended to include a more comprehensive range of weighting methods and aging regimes. This was intended to replicate the full spectrum of states of deterioration observed in silk textiles, from pristine to heavily degraded. Breaking strength was employed as a measure of the physical integrity of the fibers, and, as expected, decreased with aging. An orientational crystallinity parameter, reflecting the microstructural ordering of the fibroin polymer within the fibers, was derived from the Pol-ATR spectra. A good correlation was observed between the breaking strength of the variety of fibers and this parameter. This suggests that the physical state of historic silk fabrics might be adequately characterized for conservation purposes by such indirect micromethodology.

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Rapid estimation and quantification of sucrose content in fruit juices using Fourier transform infrared–attenuated total reflectance (FTIR–ATR) spectroscopy

Journal of Food Measurement & Characterization ◽

10.1007/s11694-015-9272-1 ◽

2015 ◽

Vol 10 (1) ◽

pp. 24-31 ◽

Cited By ~ 4

Author(s):

Reshma Nair ◽

S. Venkatesh ◽

K. A. Athmaselvi ◽

Smridhi Thakur

Keyword(s):

Fourier Transform ◽

Fourier Transform Infrared ◽

Fruit Juices ◽

Attenuated Total Reflectance ◽

Sucrose Content ◽

Rapid Estimation ◽

Total Reflectance ◽

Reflectance Ftir ◽

Atr Spectroscopy

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The Use of Fourier Transform Infrared-Attenuated Total Reflectance (FTIR-ATR) Spectroscopy to Characterise the Diffusion of Fuel Components in Polymers Used in Multilayer Fuel Line Tubing

10.4271/1999-01-0374 ◽

1999 ◽

Author(s):

Tony McNally ◽

John J. McGarvey ◽

Andrew Dennis ◽

Paul McShane ◽

Gerald M. McNally ◽

...

Keyword(s):

Fourier Transform ◽

Fourier Transform Infrared ◽

Attenuated Total Reflectance ◽

Total Reflectance ◽

Reflectance Ftir ◽

Atr Spectroscopy ◽

Fuel Components

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Use of Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy To Identify Microbial Metabolic Products on Carbonate Mineral Surfaces

Applied and Environmental Microbiology ◽

10.1128/aem.02936-07 ◽

2008 ◽

Vol 74 (14) ◽

pp. 4553-4559 ◽

Cited By ~ 26

Author(s):

Heather A. Bullen ◽

Stuart A. Oehrle ◽

Ariel F. Bennett ◽

Nicholas M. Taylor ◽

Hazel A. Barton

Keyword(s):

Fourier Transform ◽

Ftir Spectroscopy ◽

High Performance ◽

Fourier Transform Infrared ◽

Attenuated Total Reflectance ◽

Carbonate Mineral ◽

Mineral Surfaces ◽

Total Reflectance ◽

E Coli ◽

Metabolic Products

ABSTRACT This paper demonstrates the use of attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy to detect microbial metabolic products on carbonate mineral surfaces. By creating an ATR-FTIR spectral database for specific organic acids using ATR-FTIR spectroscopy we were able to distinguish metabolic acids on calcite surfaces following Escherichia coli growth. The production of these acids by E. coli was verified using high-performance liquid chromatography with refractive index detection. The development of this technique has allowed us to identify microbial metabolic products on carbonate surfaces in nutrient-limited cave environments.

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Fourier transform infrared-attenuated total reflectance (FTIR-ATR) spectroscopy and chemometric techniques for the determination of adulteration in petrodiesel/biodiesel blends

Química Nova ◽

10.5935/0100-4042.20140071 ◽

2014 ◽

Vol 37 (3) ◽

Cited By ~ 6

Author(s):

Armando Guerrero Peña ◽

Francisco Anguebes Franseschi ◽

Mepivoseth Castelán Estrada ◽

Victorino Morales Ramos ◽

Reyes García Zarracino ◽

...

Keyword(s):

Fourier Transform ◽

Fourier Transform Infrared ◽

Attenuated Total Reflectance ◽

Total Reflectance ◽

Biodiesel Blends ◽

Chemometric Techniques ◽

Reflectance Ftir ◽

Atr Spectroscopy

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The Utilization of Ftir (Fourier Transform Infra-Red) Method Combined with Chemometrics For Authentication of Indonesian Coffee Powder

International Journal of Pharmaceutical and Clinical Research ◽

10.25258/ijpcr.v9i3.8320 ◽

2017 ◽

Vol 9 (3) ◽

Author(s):

Firmansyah A. ◽

Winingsih W. ◽

Soebara Y S

Keyword(s):

Fourier Transform ◽

Natural Product ◽

High Performance ◽

Principal Component ◽

Raw Material ◽

Attenuated Total Reflectance ◽

Coffee Bean ◽

Product Analysis ◽

Total Reflectance ◽

And Cluster Analysis

Analysis of natural product remain challenging issues for analytical chemist, since natural products are complicated system of mixture. The most popular methods of choice used for quality control of raw material and finished product are high performance liquid chromatography (HPLC), gas chromatography (GC) and mass spectrometry (MS). The utilization of FTIR-ATR (Fourier Transform Infrared-Attenuated Total Reflectance) method in natural product analysis is still limited. This study attempts to expand the use of FTIR spectroscopy in authenticating Indonesian coffee powder.The coffee samples studied were taken from nine regions in Indonesia, namely Aceh Gayo, Flores, Kintamani, Mandheling, Papua, Sidikalang, Toraja, Kerinci and Lampung.The samples in the form of coffee bean from various regions were powdered . The next step conducted was to determine the spectrum using the FTIR-ATR (Attenuated Total Reflectance) using ZnSe crystal of 8000 resolution. Spectrum samples, then, were analyzed using chemometrics. The utilized chemometric model was the principal component analysis (PCA) and cluster analysis (CA). Based on the chemometric analysis, there are similarities between Aceh Gayo coffee with Toraja coffee, Mandailing coffee, Kintamani coffee and Flores coffee. Sidikalang coffee has a similarity to Flores coffee; Papua coffee has a similarity to Sidikalang coffee; Lampung coffee has a similarity to Sidikalang coffee, while Kerinci coffee has a similarity to Papua coffee.

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Detection of bloodstains using attenuated total reflectance-Fourier transform infrared spectroscopy supported with PCA and PCA–LDA

Medicine Science and the Law ◽

10.1177/00258024211010926 ◽

2021 ◽

pp. 002580242110109

Author(s):

Sweety Sharma ◽

Rito Chophi ◽

Jaskirandeep Kaur Jossan ◽

Rajinder Singh

Keyword(s):

Fourier Transform ◽

Ftir Spectroscopy ◽

Body Fluid ◽

Due Process ◽

Dna Analysis ◽

Fourier Transform Infrared ◽

Body Fluids ◽

Attenuated Total Reflectance ◽

Total Reflectance ◽

Non Destructive

The most important task in a criminal investigation is to detect and identify the recovered biological stains beyond reasonable scientific doubt and preserve the sample for further DNA analysis. In the light of this fact, many presumptive and confirmatory tests are routinely employed in the forensic laboratories to determine the type of body fluid. However, the currently used techniques are specific to one type of body fluid and hence it cannot be utilized to differentiate multiple body fluids. Moreover, these tests consume the samples in due process, and thus it becomes a great limitation especially considering the fact that samples are recovered in minute quantity in forensic cases. Therefore, such limitations necessitate the use of non-destructive techniques that can be applied simultaneously to all types of bodily fluids and allow sample preservation for further analysis. In the current work, attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy has been used to circumvent the aforementioned limitations. The important factors which could influence the detection of blood such as the effect of substrates, washing/chemical treatment, ageing, and dilution limits on the analysis of blood have been analysed. In addition, blood discrimination from non-blood substance (biological and non-biological in nature) has also been studied. Chemometric technique that is PCA–LDA has been used to discriminate blood from other body fluids and it resulted in 100% accurate classification. Furthermore, blood and non-blood substances including fake blood have also been classified into separate clusters with a 100% accuracy, sensitivity, and specificity. All-inclusive, this preliminary study substantiates the potential application of ATR-FTIR spectroscopy for the non-destructive identification of blood traces in simulated forensic casework conditions with 0% rate of false classification.

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