The FTIR spectra of the demineralized samples were recorded on a Thermo-Nicolet iS5 FTIR spectrometer (Thermo Fisher Scientific, MMAS, Waltham, MA, USA). All samples for the FTIR measurement were prepared by mixing the investigated sample with dried KBr powder, and the mixture was pressed to form a pellet under 12 MPa for 2 min. All spectra were obtained within the 400–4000 cm−1 wave number range at a resolution of 4 cm−1, and 32 scans per spectrum were performed.
Thermo nicolet is5 ftir spectrometer
Manufactured by Thermo Fisher Scientific
Sourced in United States
The Thermo-Nicolet iS5 FTIR spectrometer is a compact and versatile instrument designed for infrared spectroscopy analysis. It utilizes Fourier transform infrared (FTIR) technology to measure the absorption or transmission of infrared light by a sample, providing information about the chemical composition and structure of the material.
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Lab products found in correlation
3 protocols using thermo nicolet is5 ftir spectrometer
1
FTIR Analysis of Demineralized Samples
2
ATR-FTIR Spectroscopy Protocol
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The attenuated total reflection (ATR) FTIR spectra were recorded using a ThermoNicolet iS5 FTIR spectrometer (Thermo Fisher Scientific, Madison, USA) with single bounce diamond ATR accessory. The spectral range is between 4000 and 650 cm−1, resolution 2 cm−1 and 50 scans were collected.
3
FTIR Characterization of Demineralized Coals
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The FTIR spectrometer
was often used to characterize the chemical structures of coals and
the functional groups in coals. In this study, a ThermoNicolet iS5
FTIR spectrometer (Thermo Fisher Scientific, MMAS, Waltham, MA, USA)
was used for FTIR analysis of demineralized samples. The preparation
method of the test sample was to mix 1 mg of the demineralized sample
with 200 mg of KBr evenly, then to press it under a 10 MPa pressure
for 2 min to make it turn into a small ball. The scanning wave number
was in the range of 400–4000 cm–1, the resolution
was 4 cm–1, and 32 scans per spectrum were performed.
was often used to characterize the chemical structures of coals and
the functional groups in coals. In this study, a ThermoNicolet iS5
FTIR spectrometer (Thermo Fisher Scientific, MMAS, Waltham, MA, USA)
was used for FTIR analysis of demineralized samples. The preparation
method of the test sample was to mix 1 mg of the demineralized sample
with 200 mg of KBr evenly, then to press it under a 10 MPa pressure
for 2 min to make it turn into a small ball. The scanning wave number
was in the range of 400–4000 cm–1, the resolution
was 4 cm–1, and 32 scans per spectrum were performed.
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