FTIR analyses of raw materials, freeze-dried polymeric nanocapsules, and physical mixture were carried out from 4000 to 400 cm−1 using a Prestige-21 IR spectrophotometer (Shimadzu, Kyoto, Japan) in KBr pellets with 32 scans and a resolution of 4 cm−1.
Ir prestige 21 spectrophotometer
Manufactured by Shimadzu
Sourced in Japan, United States
The IR Prestige-21 is a Fourier Transform Infrared (FTIR) spectrophotometer manufactured by Shimadzu. It is designed to analyze the infrared absorption spectrum of a sample, providing information about the molecular structure and composition of the material.
Automatically generated - may contain errors
Lab products found in correlation
Silica gel 60 f254, by Merck Group (2 mentions)
Axima series maldi tof ms, by Shimadzu (2 mentions)
Jem 2100, by JEOL (2 mentions)
Uv 2550 spectrophotometer, by Shimadzu (2 mentions)
Jem 2100f microscope, by JEOL (2 mentions)
Zetasizer nano zs90, by Malvern Panalytical (2 mentions)
2400 chn elemental analyzer, by PerkinElmer (2 mentions)
Jem 2100f, by JEOL (2 mentions)
Nova 2000, by Anton Paar (1 mentions)
Ssx 550 superscan scanning electron microscope, by Shimadzu (1 mentions)
Xrd 7000, by Shimadzu (1 mentions)
Pe300bfm, by Excelitas (1 mentions)
Mfp 3d, by Oxford Instruments (1 mentions)
Jem 2010f microscope, by JEOL (1 mentions)
Uv 3600 uv vis near infrared spectrophotometer, by Shimadzu (1 mentions)
D4 x ray diffractometer, by Bruker (1 mentions)
Bx53m microscope, by Olympus (1 mentions)
Mp90 digital melting point apparatus, by Mettler Toledo (1 mentions)
Digital ft nmr spectrometer, by Bruker (1 mentions)
Triethylamine, by Merck Group (1 mentions)
36 protocols using ir prestige 21 spectrophotometer
1
FTIR Analysis of Polymeric Nanocapsules
2
Comprehensive Characterization of Zeolite Catalysts
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The catalysts calcination temperature was determined by thermogravimetric analysis (TGA), performed in a TA Instruments SDT Q600 balance, from room temperature to 900 °C, at 10 °C min À1 , under 100 mL min À1 of N 2 , using approximately 10 mg of the sample. The zeolite crystalline phases were identified by X-ray diffraction using Shimadzu XRD-7000 with Cu-K a radiation source (k = 1.5409 Å), voltage of 30 kV, current of 30 mA, step of 0.02°a nd speed of 0.01°/s. The data were collected in the range of 2h from 0.5 to 10°. Rietveld refining was performed to confirm the zeolite structure and to obtain the network parameters. The morphology of the zeolite was identified by a Shimadzu SSX 550 SuperScan scanning electron microscope, equipped with the tungsten filament operating at 15 kV. The samples were previously covered with a thin layer of gold of approximately 70 nm to guarantee the electrical conductivity necessary for the analysis. Infrared absorption spectra were obtained from 4000 to 400 cm À1 using the Prestige-21 IR spectrophotometer from Shimadzu. The specific area and pore diameter of the calcined catalysts were calculated by the BET and BJH methods, respectively. The samples were degassed at 200 °C for 2 h and then analyzed in a Nova 2000 from Quanta Chrome Instruments.
3
Characterization of I3-SMARS using Multi-Modal Techniques
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The optical images were monitored with an Olympus BX53M microscope in bright-field mode, equipped with a homemade temperature/magnetic dual-controlled microscope stage. Field emission SEM and elemental analysis were performed on a JEOL FEG JSM-7001F microscope equipped with an Oxford/INCA EDS. Transmission electron microscopy (TEM) images were obtained using a JEOL JEM-2010F microscope. Fourier transform infrared spectroscopy spectrum was collected on a Shimadzu IR Prestige-21 spectrophotometer. Ultraviolet-visible (UV-vis) absorption spectra were recorded on a Shimadzu UV-3600 UV-vis near-infrared spectrophotometer. X-ray diffraction was carried out on a Bruker D4 X-ray diffractometer. AFM images were collected on a commercial scanning probe microscope (SPM) instrument (MFP-3D, Asylum Research, CA, USA). The temperature and open-circuit voltage of I3−-SMARS were recorded on a nanovoltmeter (Keithley 2182A). The infrared camera was used to capture infrared image and surface temperature. Simulated sunlight with a radiation intensity of 5 kW m−2 was provided by a 300-W Xenon lamp (Excelitas, PE300BFM).
4
Synthesis and Characterization of Novel Compounds
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
All chemicals were purchased either from Sigma-Aldrich (Sigma-Aldrich Corp., St. Louis, MO, USA) or Merck (Merck KGaA, Darmstadt, Germany) and used without further chemical purification. Melting points of the synthesized compounds were determined by a MP90 digital melting point apparatus (Mettler Toledo, Columbus, OH, USA) and were uncorrected. 1H- and 13C-NMR spectra were recorded in DMSO-d6 by a Bruker digital FT-NMR spectrometer (Bruker Bioscience, Billerica, MA, USA) at 300/75 MHz. The IR spectra were obtained on an IR Prestige-21 spectrophotometer (Shimadzu, Tokyo, Japan). LC-MS-MS studies were performed on a Shimadzu IT-TOF-LC-MS-MS system. The purities of compounds were checked by TLC on silica gel 60 F254 (Merck KGaA).
5
FT-IR Analysis of Freeze-Dried Powder
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
BC was freeze-dried and crushed into powder form, mixed with potassium bromide, and pressed into small tablets that were subjected to Fourier transform infrared spectroscopy (FT-IR) using an IRPrestige-21 spectrophotometer (Shimadzu, Japan) in absorption mode. For each sample, 32 scans at 4 cm−1 resolution at wave numbers ranging from 4000 to 400 cm−1 were collected.
6
Synthesis and Characterization of JMPR-01
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
To obtain the JMPR-01, the following products were used in equimolar (1 mmol): 2-cyano-N-phenylacetamide (JM-01), previously synthesized; and 2-carboxyaldehyde (Sigma-Aldrich, St. Louis, MO, USA). Toluene (10 mL) (Vetec, Rio de Janeiro, Brazil) was used as reaction medium, added with 5–10 drops of the catalyst, triethylamine (Sigma-Aldrich, St. Louis, MO, USA) (Scheme 1 ). The reaction was kept under magnetic stirring, for 24 h at a temperature between 105–110 °C, and its end was observed by Analytical Thin Chromatography (CCDA). The reaction was filtered and the obtained crystals were washed with ice-cold distilled water, and then recrystallized in ethanol–water 1:1. The product was then analyzed by 1H and 13C NMR (Agilent NMR spectrometer, model Mercury Plus 500 MHz, OXFORD 300 magneto-NMR), infrared spectroscopy (IRPrestige-21 Spectrophotometer) and mass spectrometry (Shimadzu® AXIMA series MALDI-TOF/MS).
7
FTIR Analysis of Polymeric Microparticles
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The Fourier-transformed infrared (FTIR) spectra of ADAP, PCL, polymeric microparticles, and PM were recorded on a Shimadzu IR Prestige-21 spectrophotometer. (Kyoto, Japan). 4 mg of each sample were mixed with 100 mg of KBr, and the pellets were prepared under a pressure gauge of 80 kN. The spectra were obtained from 4000 to 400 cm–1, with 32 scans and a resolution of 4 cm–1 in absorbance mode.
8
Infrared Spectroscopy of CD Suspensions
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The infrared spectra of the CDs suspension were obtained using an IRPrestige-21 spectrophotometer (Shimadzu, Kyoto, Japan) coupled with an attenuated total reflectance (ATR) accessory with ZnSe crystal. The spectral range was 4000–800 cm−1, 4 cm−1 resolution and 120 scans. The bands intensities were expressed in transmittance (%) with a diffuse reflectance accessory (DRS-8000).
9
FTIR-ATR Analysis of Polymer Coated Stents
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Commercial CS, CS-FA derivatives, CS and CS-FA derivatives-coated PU stents were analyzed by FTIR-ATR spectroscopy. FTIR-ATR measurements were performed employing an IR-Prestige-21 spectrophotometer (Shimadzu Scientific Instruments, Columbia, MD, USA) by averaging 32 individual scans over the spectral range from 4000–500 cm−1 with a resolution of 4 cm−1.
10
Comprehensive Materials Characterization Protocol
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
X-ray diffraction (XRD) patterns were obtained using a Bruker D8 Advance X-ray diffractometer. Fourier-transform infrared reflectance (FT-IR) spectra were measured using a Shimadzu irprestige-21 spectrophotometer. The morphology of the prepared samples was evaluated using a TESCAN MIRA4 field emission scanning electron microscopy (SEM) instrument, Tecnai G2 F20 S-TWIN (FEI) transmission electron microscopy (TEM) apparatus. The X-ray photoelectron spectroscopy (XPS) profiles of the samples were obtained using a Thermo Scientific K-Alpha instrument equipped with a monochromatic Al Lα X-ray source. The UV-Vis diffuse reflectance spectra (DRS) of the samples were obtained using a Shimadzu UV-2700 ultraviolet-visible-near-infrared spectrophotometer over the wavelength range of 250–800 nm. High-performance liquid chromatography-mass spectrometry (HPLC-MS) experiments were performed using an Agilent 1200 series system, equipped with an Agilent Zorbax Eclipse XDB-C18 column (2.1 mm × 100 mm × 3.5 m). Photocurrent measurements were conducted using a BAS Epsilon workstation. Electrochemical impedance spectroscopy (EIS) experiments were conducted using a Precision PARC workstation.
About PubCompare
Our mission is to provide scientists with the largest repository of trustworthy protocols and intelligent analytical tools, thereby offering them extensive information to design robust protocols aimed at minimizing the risk of failures.
We believe that the most crucial aspect is to grant scientists access to a wide range of reliable sources and new useful tools that surpass human capabilities.
However, we trust in allowing scientists to determine how to construct their own protocols based on this information, as they are the experts in their field.
Ready to get started?
Sign up for free.
Registration takes 20 seconds.
Available from any computer
No download required
Revolutionizing how scientists
search and build protocols!