The samples used in this experiment were the same as those described in Section “RS and RS/QBG paste preparation”. After overnight storage at −80 °C, the samples were freeze-dried in a vacuum freeze-drier and passed through a 100-mesh sieve. The ratio of samples to KBr was approximately 1:120, and the samples were compressed into slices. A Nicolet IS50 Fourier transform infrared (FT-IR) spectrometer (Thermo Scientific, USA) was used to acquire FT-IR spectra. The test wavelengths ranged from 400 cm−1 to 4000 cm−1.
Nicolet is50 fourier transform infrared ft ir spectrometer
Manufactured by Thermo Fisher Scientific
Sourced in United States
The Nicolet IS50 Fourier transform infrared (FT-IR) spectrometer is a laboratory instrument designed for spectroscopic analysis. It uses Fourier transform technology to analyze the interaction between infrared radiation and a sample, producing an infrared spectrum that can be used to identify and characterize the chemical composition of the sample.
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Lab products found in correlation
4 protocols using nicolet is50 fourier transform infrared ft ir spectrometer
1
Freeze-Dried Sample Preparation for FT-IR Analysis
2
FTIR Analysis of β-TCP/Mg Compounds
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A Nicolet iS50 Fourier Transform Infrared (FTIR) spectrometer (Thermo Fisher Scientific, Waltham, MA, USA) was used in conjunction with an attenuated total reflection system to identify the components of the β-TCP/Mg specimens and the β-TCP controls. Note that FTIR spectra were obtained under the following parameters: wavelength range (4000 cm−1–400 cm−1), resolution (4 cm−1), temperature (25 °C), and humidity (65% ± 5%). A background spectrum was used to normalize the spectra. In addition, a dry system was employed to eradicate atmospheric moistness [47 (link)].
3
Comprehensive Material Characterization Protocol
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Powder X-ray diffraction (XRD) spectra were measured using Bruker D8 Advance, Germany. Strength tests were measured on a DR-507 universal testing machine using sheet parameters with sample strip parameters of 2 mm × 3 mm × 22 mm. A Nicolet iS50 Fourier Transform Infrared (FT-IR) spectrometer from Thermo-Fisher, Horsham, UK, was used. Nitrogen adsorption and desorption tests were performed using a Mack ASAP 2460 model. The surface morphology and particle size of the samples were observed by scanning electron microscopy (SEM) using a Hitachi S4800 model (HITACHI, Tokyo, Japan). We performed comprehensive thermal (TG-DSC) analysis with a simultaneous thermal analyzer model STA449 F5 from NETZSCH Manufacturing GmbH, Frankfurt, Germany, with a heating rate of 10 • C/min in the range of 50 • C-800 • C. The main instruments used in the experiment were a planetary ball mill (Qidong Honghong Instrument Equipment Factory, Qidong, China, KE-0.4L), precision diamond wire cutting machine (Shenyang Kejing Automation Equipment Co., Ltd., SXT-202AQ, Shenyang, China), density meter (Dongguan Dongri Instrument Co., Ltd., DR-200A, Dongguan, China), and an ultraviolet spectrophotometer (Shanghai Jinghua Technology Instrument Co., Ltd., 754PC, Shanghai, China).
4
Crocodile Stomach Flushing and Microplastic Analysis
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Animal Management and Stomach Flushing
Rope
Stainless steel cable snares attached to an aluminium pole
Measuring tape
Spring scale
Insulating tape (vinyl, red)
PVC pipe (according to crocodile size)
Silicone Hose (according to crocodile size)
Copper spoon (according to crocodile size)
10 L bucket
Water (purified and de-ionized)
Mineral oil
Glass vials
Petri dish
Deionized water
Stainless Steel Test Sieve (4.75 mm, 2.36 mm, 1 mm)
10 L bucket
Stainless steel tweezers (precision and 30 cm)
Aluminium tray
Stainless steel dissecting forceps No. 5
Petri dish
Deionized water
Dissecting microscope
Nicolet iS50 Fourier Transform Infrared (FTIR) Spectrometer Thermo-Fisher Scientific
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