Spectrum one fourier transform
Manufactured by PerkinElmer
The Spectrum One Fourier transform is a laboratory instrument that uses Fourier transform infrared (FTIR) spectroscopy to analyze the chemical composition of samples. It measures the absorption of infrared light by molecules, which provides information about their molecular structure and identity.
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5 protocols using spectrum one fourier transform
1
FTIR Analysis of Dry Polymer Powders
2
Characterization of Novel Compounds
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All of the reagents and solvents were purchased
as reagent grade and used without further purification. Nuclear magnetic
resonance (NMR) spectra were recorded on a Varian Unity INOVA 500
FT-NMR. Chemical shifts for the samples were measured in DMSO-d6 and calibrated against the sodium salt of
3-(trimethylsilyl)propionic-2,2,3,3-d4 acid (TSP) as an external reference in a sealed capillary tube.
NMR data were processed and analyzed with MestReNova version 6.1.1-6384.
The IR spectra were recorded on a Perkin Elmer-Spectrum One Fourier
transform infrared spectrometer with KBr disks in the range of 4000–400
cm–1. The melting point was determined on a Mel-Temp
(Electrothermal 120 VAC 50/60 Hz) melting point apparatus and was
uncorrected. Mass spectral data were obtained at electrospray ionization
mass spectrometry (ESI-MS) positive mode on a TSQ Quantum GC (Thermo
Scientific). Elemental analysis was carried out using an ECS 4010
Analytical Platform (Costech Instrument) at Jackson State University.
as reagent grade and used without further purification. Nuclear magnetic
resonance (NMR) spectra were recorded on a Varian Unity INOVA 500
FT-NMR. Chemical shifts for the samples were measured in DMSO-d6 and calibrated against the sodium salt of
3-(trimethylsilyl)propionic-2,2,3,3-d4 acid (TSP) as an external reference in a sealed capillary tube.
NMR data were processed and analyzed with MestReNova version 6.1.1-6384.
The IR spectra were recorded on a Perkin Elmer-Spectrum One Fourier
transform infrared spectrometer with KBr disks in the range of 4000–400
cm–1. The melting point was determined on a Mel-Temp
(Electrothermal 120 VAC 50/60 Hz) melting point apparatus and was
uncorrected. Mass spectral data were obtained at electrospray ionization
mass spectrometry (ESI-MS) positive mode on a TSQ Quantum GC (Thermo
Scientific). Elemental analysis was carried out using an ECS 4010
Analytical Platform (Costech Instrument) at Jackson State University.
3
Synthesis and Characterization of Allylruthenium Carbonyl Chloride
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Synthesis was carried out under an inert atmosphere (N2) using standard Schlenk techniques. Reagents were purchased from Acros Organics, Oakwood Chemical, and Fisher Scientific and used without further purification. 1H NMR spectra (Supplementary Information, Fig. S9 ) were obtained on a 400 MHz Bruker spectrometer and signals were referenced to the residual protons of CDCl3. IR Spectroscopy (Supplementary Information, Fig. S10 ) was performed on a Perkin Elmer Spectrum One Fourier transform infrared spectrometer using a solution cell equipped with NaCl windows and a path length of 1.0 mm. Synthesis and purification of (η3-C3H5)Ru(CO)3Cl was carried out using a literature procedure35 (link). The compound was characterized by comparison to literature data35 (link). 1H NMR (300 MHz, CDCl3) δ 5.29 (tt, 1H, J = 8.7, 13.2 Hz), 4.20 (dd, 2H, J = 8.7, 1.0 Hz), 2.98 (dd, 2H, J = 13.2, 1.0 Hz). IR (heptane) 2,111, 2,062, 2,016 cm−1.
The integrity of the compound after shipping to Bremen was checked up to a sublimation temperature of 200 °C by EI-MS which shows the parent ion as well as the characteristic series of ligand losses (Supplementary Information, Fig.S11 ).
The integrity of the compound after shipping to Bremen was checked up to a sublimation temperature of 200 °C by EI-MS which shows the parent ion as well as the characteristic series of ligand losses (Supplementary Information, Fig.
4
Multimodal Characterization of Novel Materials
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Solid-state cross polarization magic angle spinning (CP/MAS) NMR spectrum was obtained on a Bruker Avance III 400 NMR spectrometer. The infrared (IR) spectra were obtained from a PerkinElmer Spectrum One Fourier transform infrared (FTIR) spectrometer. Thermogravimetric analysis (TGA) was carried out on a Pyris Diamond thermogravimetric/differential thermal analyzer by heating (10 °C min−1) the samples to 900 °C under the nitrogen or air atmosphere. Scanning electron microscopy (SEM) observation was performed using a Hitachi S-4800 microscope without sputter coating. Transmission electron microscopy (TEM) observation was carried out with a FEI Tecnai G2 20S-TWIN microscope at an accelerating voltage of 200 kV. The SEM and TEM samples were prepared by placing a drop of the sonicated suspension of the as-prepared material in ethanol on a silica wafer and lacey support film, respectively, followed by drying under ambient condition.
5
Distinguishing Amorphous and Crystalline Calcium Phosphates
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Infrared spectroscopy is a useful method of discriminating between amorphous and crystalline calcium phosphates because the crystalline order alters the shape of the vibrational and bending absorption features of the phosphate group (Holt et al., 1988 (link)(Holt et al., , 1989)) (link). Infrared spectra were measured using a Perkin-Elmer Spectrum One Fourier transform spectrometer at 4 cm -1 resolution, averaging over 32 scans. Samples were in the form of a KBr disc containing 1% freeze-dried pelleted casein micelles. A pure KBr disc was used for baseline correction, and the intensities were normalized using the instrument's Omnic software.
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