FTIR spectroscopy is for the structural analysis of polysaccharides on the position and anomeric configuration of glycosidic linkages in β-glucan (24 (link), 25 (link)). FTIR spectra were obtained with a Bruker alpha FTIR spectrophotometer instrument using 16 scans from 4,000 to 500 cm−1.
Alpha ftir spectrophotometer
Manufactured by Bruker
Sourced in Germany, United States
The Alpha FTIR spectrophotometer is a Fourier Transform Infrared (FTIR) spectrometer designed for routine laboratory analysis. It provides high-quality infrared spectra for the identification and characterization of a wide range of materials.
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Lab products found in correlation
Opus software, by Bruker (4 mentions)
Cary eclipse fluorescence spectrophotometer, by Agilent Technologies (3 mentions)
Avance av 300, by Bruker (2 mentions)
Opus graph plotter, by Bruker (2 mentions)
Afcend germany spectrophotometer, by Bruker (2 mentions)
Rf 5301pc spectrofluorophotometer, by Shimadzu (2 mentions)
Jsm 6701f field emission scanning electron microscope, by JEOL (1 mentions)
Vario micro cube instrument, by Elementar (1 mentions)
Zetasizer nano zs90, by Malvern Panalytical (1 mentions)
Advance 300 spectrometer, by Bruker (1 mentions)
D8 advance x ray diffractometer, by Bruker (1 mentions)
1601 pc spectrophotometer, by Shimadzu (1 mentions)
Jsm 6701f, by JEOL (1 mentions)
Spectrophotometer uv 1601pc, by Shimadzu (1 mentions)
Excalibur 3100, by Agilent Technologies (1 mentions)
Lambda 45 spectrophotometer, by PerkinElmer (1 mentions)
Opus version 7, by Bruker (1 mentions)
E500 spectrometer, by Bruker (1 mentions)
Cary 300 uv vis spectrophotometer, by Agilent Technologies (1 mentions)
Drx 400 spectrometer, by Bruker (1 mentions)
39 protocols using alpha ftir spectrophotometer
1
Structural Analysis of β-Glucan by FTIR
2
Coffee Cellulose Functionalization Analysis
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FTIR spectra of the coffee cellulose before and after functionalization were recorded within the range of450~4000 cm−1 using a Bruker ALPHA FT-IR spectrophotometer using KBr as matrix. Scanning Electron Microscope (SEM, JEOL JSM-6701F field emission scanning electron microscope) was used to observe the changes in morphology of spent coffee powder before and after modification. Concentrations of As, Cu, P, and Fe ions in solution were determined using Inductively Coupled Plasma-Optical Emission Spectroscopy (Dual-view Optima5300 DV). Elemental analyses were done using an Elementar Vario Micro Cube instrument. Zeta potential measurements were done using Malvern Zetasizer Nano-ZS90 instrument.
3
Characterization of Nanoparticle Crystalline Phase
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The crystalline phase of the prepared nanoparticles was characterized using a Rőntgen PW3040/60 X’Pert Pro XRD diffractometer equipped with nickel filtered Cu Kα radiation (k = 1.5418 Å) at room temperature and a scanning rate of 0.0018° min−1. The morphological properties were characterized using a TECNAI G2 (ACI) in both the scanning and transmission electron microscopy with an accelerating voltage of 200 kV. The available functional group in the plant extract, which acted as stabilizing and reducing agents, was studied using Bruker Alpha (FTIR) spectrophotometer. The elemental composition and the morphology of the as-prepared nanomaterials were studied using FEI Quanta FEG 250 field emission gun microscope operating at 15 kV with the Energy dispersive X-ray (EDX) spectra obtained using Oxford Inca software.
4
Characterization of Novel Nanomaterials
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All chemical reagents were purchased and used without further purification. H2O was boiled for 3 h to remove oxygen. DMF was distilled under reduced pressure over CaH2. All reactions were carried out under an N2 atmosphere by using standard Schlenk techniques. The powder XRD patterns were recorded by using a Bruker D8 Advance X‐ray diffractometer. The DTA analyses were recorded by using a thermogravimetric analysis instrument (SDTQ 600). The TEM images were obtained by using TEM apparatus (JEM‐2100). FTIR spectra were recorded by using a Bruker Alpha FT‐IR spectrophotometer. The ICP‐MS data were recorded by using an IRIS Advantage Radial instrument under standard conditions. 1H and 13C NMR spectra were recorded by using a BRUKER ADVANCE 300 spectrometer. Mass spectrometric data were collected by using a maXis UHR‐TOF mass spectrometer. Melting points were measured by using a Yanaco MP‐500 micro melting point apparatus and are uncorrected.
5
Spectroscopic Characterization of Particles
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1H Nuclear magnetic resonance (NMR) spectra were recorded on Bruker Avance AV300 (300 MHz) NMR instrument using CDCl3 as the solvent. The IR spectra were recorded in the range of 4000–400 cm−1 using a Bruker ALPHA FT-IR Spectrophotometer with a resolution of 4.0 cm−1. Particle morphology was examined using scanning electron microscopy (JEOL JSM-6701F). The UV/Vis absorption studies were performed on a Shimadzu-1601 PC spectrophotometer. The steady state fluorescence studies were carried out on an Agilent Cary Eclipse Fluorescence Spectrophotometer.
For quantum yield measurement, following Equation (4 ) was used to measure relative quantum yield of particles. where, ΦR, IR, AR and ηR refers to quantum yield, integrated area under emission spectra, absorbance and refractive index of reference, Rhodamine B (ΦR = 0.7 and η = 1.36) in ethanol45 (link) solvent, I, A and η refers to integrated area under emission spectra, absorbance and refractive index of sample in THF solvent.
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1H Nuclear magnetic resonance (NMR) spectra were recorded on Bruker Avance AV300 (300 MHz) NMR instrument using CDCl3 as the solvent. The IR spectra were recorded in the range of 4000–400 cm−1 using a Bruker ALPHA FT-IR Spectrophotometer with a resolution of 4.0 cm−1. Particle morphology was examined using scanning electron microscopy (JEOL JSM-6701F). The UV/Vis absorption studies were performed on a Shimadzu-1601 PC spectrophotometer. The steady state fluorescence studies were carried out on an Agilent Cary Eclipse Fluorescence Spectrophotometer.
For quantum yield measurement, following Equation (
6
Non-invasive FTIR Analysis of Samples
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For FTIR non-invasive analysis in reflection mode, a Bruker Alpha FTIR spectrophotometer was used. The instrument is provided with a reflection module for contactless measurements and a deuterated triglycine sulfate (DTGS) detector, operating at room temperature and ensuring a linear response in the spectral range between 7500 and 375 cm−1. Spectra were collected as a sum of 200 scans, after the acquisition of a background spectrum on a gold mirror. The area of the sample investigated had a diameter of approximately 6 mm and the instrumental resolution was 4 cm−1. An integrated camera allows the operator to select the area to be measured. The reflection spectra in the MIR region, if necessary, were processed by the Kramers–Kronig transform (KKT) using the Bruker OPUS software (Version 6.5). Alternatively, they were transformed into pseudo-absorbance Log(1/R).
7
Characterization of Novel Organic Compounds
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Nuclear magnetic resonance (1H NMR) spectra were recorded on Bruker Avance AV300 (300 MHz) NMR instrument using CDCl3 as the solvent. Absorption and emission spectra were measured on a UV-1601PC Shimadzu spectrophotometer and RF-5301PC Shimadzu spectrofluorophotometer. Bruker ALPHA FT-IR spectrophotometer was used for records Fourier transform infrared (FT-IR) spectroscopy analysis. Thermogravimetric analyses (TGA) were conducted using a SDT 2960 TA instrument. All samples were heated under nitrogen atmosphere from 25 °C to 800 °C using a heating rate of 10 °C/min. FT-IR spectra were recorded in the range of 3800–400 cm−1 using a Varian Excalibur 3100. Samples were mixed with KBr powder and grounded in an agate mortar before being pressed into a disk for recording the spectrum.
8
Non-invasive FTIR Spectroscopic Analysis
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A Bruker Alpha FTIR spectrophotometer was used for non-invasive analyses in reflection mode. The instrument is equipped with a reflection module for contactless measurements and a deuterated triglycine sulfate (DTGS) detector, operating at room temperature and ensuring a linear response in the spectral range between 7500 and 375 cm−1. The FTIR spectrophotometer collects spectra from a sample area with a diameter of approximately 6 mm and with a resolution of 4 cm−1. An integrated camera allows the operator to select the area to be measured. FTIR spectra were acquired as sum of 200 scans after the background spectrum acquisition on a gold mirror. The reflection spectra in the MIR region were processed by the Kramers–Kronig transform using the Bruker OPUS software. In the NIR range, on the other hand, they were transformed into pseudo-absorbance Log(1/R).
9
FTIR Analysis of Regenerated Cellulose Fibers
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The FTIR spectra of the regenerated cellulose fibers were recorded by using an ALPHA FTIR spectrophotometer with an attenuated total reflectance (ATR) (Bruker Corporation, Billerica, MA, USA). All of the spectra were obtained from 32 scans with a resolution of 4 cm−1 and absorption mode, using a wavelength range from 500 to 4000 cm−1. At least three repetitions per sample were conducted.
10
Characterization of Complexes by Analytical Techniques
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Carlo Erba model 1106 elemental analyzer was used to perform a micro-analysis (% C, H, and N). FT-IR spectra were recorded using KBr pellets in the range 4000–400 cm−1 on a Bruker ALPHA FT-IR spectrophotometer. Electronic spectra in the range of 200–1100 nm were acquired using 1 cm quartz micro cuvettes on a Perkin Elmer Lambda–45 spectrophotometer. The mass spectra were recorded on Q-TOF 6000 ESI mass spectrometer. The concentration of complexes was taken at around 0.1 mM and the supporting electrolyte (TBAP) was at 0.1 M.
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