The Rast Camphor method was used to determine the molecular weights. Conductivity Bridge 305 was used to evaluate conductivity in dry DMF (dimethylformamide). The CHNS Analyzer was used to determine the percentage of the various components (C, H, and N) present: ELEMENTAR Vario EL III at STIC Kerala, the FT-IR was recorded on FT-IR; Perkin Elmer Spectrum IR Version 10.6.2 using as KBr disc India. NMR spectra were recorded in DMSO-d6 using a JEOL400 ECZS NMR Spectrometer, and A SCIEX Triple TOF 5600 mass spectrometer was used to certify the mass spectra. The complexes in DMSO had their electronic spectra (10-3 M, 200–800 nm) measured at room temperature using a Perkin Elmer -25 spectrophotometer. Co(II) complexes ESR spectra were captured at liquid nitrogen temperature (LNT) using a JEOL JES - FA200 ESR Spectrometer with the X and Q bands. The powder X-ray diffraction was recorded on Bruker D8 Advance Twin- Twin at STIC Kerala, India. The morphological study was examined using a JEOL JSM6510 scanning electron microscope (SEM). TGA study has determined the stability and decomposition kinetic characteristics. Thermogravimetric analyzer (Hitachi STA 7200) TGA/DTA study was carried out with N2 flow (20 mL min-1) and heating rate of 10 °C/min.
Jes fa200 esr spectrometer
Manufactured by JEOL
Sourced in Japan
The JES-FA200 ESR spectrometer is a compact and versatile electron spin resonance (ESR) instrument designed for research and analytical applications. It provides high-performance ESR measurements with a frequency range of 8-9.5 GHz and a magnetic field range of 0-0.5 T. The spectrometer features a user-friendly interface and advanced data analysis capabilities to support a wide range of ESR studies.
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Lab products found in correlation
Escalab 250, by Thermo Fisher Scientific (3 mentions)
Chns analyzer, by PerkinElmer (1 mentions)
Spectrum ir version 10, by PerkinElmer (1 mentions)
D8 advance twin twin, by Bruker (1 mentions)
Sta7200, by Hitachi (1 mentions)
Tripletof 5600 mass spectrometer, by AB Sciex (1 mentions)
Uv 3600 plus, by Shimadzu (1 mentions)
Jem arm200finstrument, by JEOL (1 mentions)
Phi 1600 esca system, by PerkinElmer (1 mentions)
D8 advanced diffractometer system, by Bruker (1 mentions)
S 4800, by Hitachi (1 mentions)
Vertex 70, by Bruker (1 mentions)
Uv 2550 uv vis spectrophotometer, by Shimadzu (1 mentions)
Prism 7, by GraphPad (1 mentions)
Uv 3010, by Shimadzu (1 mentions)
Ht7700 tem, by Hitachi (1 mentions)
Regulus 8100, by Hitachi (1 mentions)
Q exactive hybrid quadrupole orbitrap mass spectrometer, by Thermo Fisher Scientific (1 mentions)
Model 2400 series 2 chns o analyzer, by PerkinElmer (1 mentions)
V 570 uv vis nir spectrophotometer, by Jasco (1 mentions)
12 protocols using jes fa200 esr spectrometer
1
Comprehensive Characterization of Complexes
2
Quantifying Hydroxyl Radical Levels in Bacterial Cells
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The amounts of hydroxyl radical (·OH) in Ec-PprM and Ec-pASK cells were detected using electron paramagnetic resonance (EPR) spectroscopy with the specific probe ethanol/a-(4-pyridyl-1-oxide)-N-tert-butylnitrone (4-POBN) as previously described (Lee et al., 2009 (link)). Following 2 h incubation with AHT (200 ng/ml), the cells were washed twice with ice-cold Chelex-treated Hank's balanced salt solution (HBSS) and resuspended in ice-cold HBSS. The cell suspension was added to a mixture containing 100 mM diethylenetriaminepentaacetic acid (DTPA), 10 mM 4-POBN, 170 mM ethanol, 1 mM H2O2, and HBSS. The final cell densities were equivalent in all samples (OD600 of ~20). The EPR spectra were measured on a JES-FA200 ESR spectrometer (JEOL, Japan). The spectra were recorded at room temperature with a 9.4 GHz microwave frequency, 10 mW microwave power, 0.2 mT modulation amplitude, 100 kHz modulation frequency, and 3.0 × 10 amplification.
3
ESR Characterization of Ion-Irradiated HSA Film
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For the ESR measurements, an HSA drop-cast film irradiated with a 490 MeV 192Os30+-ion beam at a fluence of 5.0 × 109 ions cm−2 was placed in a quartz-glass sample tube. The ESR spectra were obtained with a JEOL JES-FA200 ESR spectrometer coupled with a computer for data acquisition and instrument control. The signal intensity was corrected using a Mn2+ marker.
4
UV-vis-NIR and ESR Spectroscopic Analysis
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The ultraviolet–visible–near‐infrared (UV–vis–NIR) absorption spectra of solution samples were carried out with UV‐3600PLUS (SHIMADZU). For ESR measurements, the prepared sample solutions were dropped onto glass substrates and dried in an Ar‐filled glove box to remove the solvent, and then placed into paramagnetic tubes. After sealing the paramagnetic tubes, the ESR was measured on a JEOL JES‐FA200 ESR spectrometer at room temperature.
5
Catalyst Characterization by Advanced Techniques
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To analyze the bulk phase composition and crystallite structure of the catalysts, XRD patterns were obtained using a Bruker D8 Advance diffractometer (40 kV, 40 mA) with a Cu Kα radiation source (λ=1.5406 Å) and 2θ values between 10°∼80°. Raman spectra of the ZnO catalysts were collected in a range of 100 to 800 cm−1 using Renishaw with an excitation wavelength of 532 nm. TEM images were obtained on a JEOL-2010 electron microscope at an acceleration voltage of 200 kV. The HRTEM images were obtained with a JEOL JEM-ARM200F instrument using a spherical aberration corrector. Room-temperature ESR spectra were obtained using a JEOL JES-FA200 ESR spectrometer (300 K, 9.062 GHz). Room temperature photoluminescence (PL) spectra were obtained by using a Jobin Yvon Fluorolog 3-TAU luminescence spectrometer (Jobin Yvon Instruments Co., Ltd., France). XPS spectra were obtained using a PerkinElmer PHI 1600 ESCA system with an Al Kα radiation source at 1486.7 eV as the excitation source. The spectra were collected at ambient temperature under an ultrahigh vacuum. The binding energy (BE) scale was measured based on the standard C 1s peak of graphite at 284.6 eV.
6
Evaluating HM ESR Spectra at pH 3 and 11
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A JES-FA200 ESR spectrometer (JEOL Co., Ltd., Tokyo, Japan) was used to measure the ESR spectra of HM. HMs were placed in quart glass tubes (JEOL Co. Ltd., Parts No. 422000281, inner diameter of 4 mm) until it filled up to 40 mm from the bottom. Each HM was examined at pH 3 (adjusted using 0.1 M HCl) and pH 11 (adjusted using 0.1 M NaOH) to evaluate the effect of the pH of the HM on the ESR signal intensity. The spectrometer was operated at room temperature with these measurement conditions: frequency 9440 MHz with modulation of the steady magnetic field being 100 kHz, time constant 0.03 s, and modulation width of 0.2 mT.
7
Characterization of Novel Materials
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The UV-visible absorption spectra was collected by UV-2550 UV-vis spectrophotometer (Shimadzu, Japan). An S-4800 (Hitachi, Japan) was used to carry the field emission scanning electron microscopy (SEM) images. A transmission electron microscope (TEM) (JEM 1230, Japan) was used to take pictures of the materials. Using a Cu Kα (1.5418 Å) source produced powder X-ray diffraction (XRD) patterns (Bruker D8 Advanced Diffractometer System, Germany). X-ray photoelectron spectroscopy (XPS) data were recorded on a Thermo Scientific ESCALAB 250 equipped with an Al Kα source (1486.6 eV). Fourier transform infrared (FTIR) spectroscopy was used to examine the functional groups by Bruker Vertex 70 (Germany). Electron spin resonance (ESR) was measured using a JES-FA200 ESR spectrometer (JEOL, Japan). Large Stackable Shaker Incubator (ZDZY-BF8/BS8) was purchased from Shanghai Zhichu Instrument Co., Ltd.
8
Comparative Analysis of Coal Types
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The materials used in the experiment include
Hailar lignite, Panjiang
bituminous coal, and Yangquan anthracite.
The instruments used
in the experiment include a GF-A6 type automatic industrial analyzer,
a JEOL JES-FA200 ESR spectrometer (made in 2009) with a signal amplifier,
a jaw crusher, 80 mesh standard sieves, 120 mesh standard sieves,
Ziplock bags, 5 × 250 quartz test tubes, 0.1 × 100 capillaries,
and so forth.
Hailar lignite, Panjiang
bituminous coal, and Yangquan anthracite.
The instruments used
in the experiment include a GF-A6 type automatic industrial analyzer,
a JEOL JES-FA200 ESR spectrometer (made in 2009) with a signal amplifier,
a jaw crusher, 80 mesh standard sieves, 120 mesh standard sieves,
Ziplock bags, 5 × 250 quartz test tubes, 0.1 × 100 capillaries,
and so forth.
9
Alkyl Radical Scavenging Assay of Natural Extracts
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Prior to analysis, reaction mixtures were prepared by mixing 20 µL of distilled water, 20 µL of extract, 20 µL of 40 mM (-(4-pyridyl-1-oxide)-N-tert -butylnitrone (4-POBN), and 20 µL of 40 mM 2,2’-Azobis(2-amidinopropane) dihydrochloride (AAPH). Then, the reaction mixtures were incubated at 37 °C for 30 min and transferred to Teflon™ capillary tubes using a syringe. A JES-FA200 ESR spectrometer (JEOL, Tokyo, Japan) was utilized to measure alkyl radical scavenging activity at the Bio-Health Materials Core-Facility in Jeju National University. The following parameter settings were used to record ESR spectra: frequency, 9.43 GHz; power, 7 mW; sweep width, 10 mT; sweep time, 30 s; time constant, 0.03 s; amplitude, 500; and modulation width, 0.2 mT. A magnetic ESR standard (Mn2+ marker) was used for comparison of signal intensities and results were expressed as relative height ratios. Catechin was used as the positive control in this experiment. The percentage radical scavenging activity of each extract was calculated using the following formula: (Absorbance of the control group − absorbance treated group) ÷ Absorbance control group) × 100%. Following percentage radical scavenging activity calculations, EC50 values for each extract were generated using GraphPad Prism 7.0 software.
10
Comprehensive Characterization of Product Morphology and Spectral Properties
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An HT7700 TEM transmission electron microscope, HITACHI Regulus8100 scanning electron microscope and JEM-2011F high-resolution electron microscope (HRTEM) were used to characterize the product morphology. UV-3010 (Shimadzu) UV-visible solid diffuse reflection (DRS) was used to characterize the spectral properties of the products. The XPS data of the product were characterized by the PHI Quantera SXMTM system. The fluorescence spectra were measured with a Varian Cary Eclipse500 fluorescence photometer, and the excitation wavelength was 320 nm. The photocurrents were measured on the CHI 660B electrochemical system. The active species of phenol degradation can be detected by ESR (JEOL JES-FA200 ESR Spectrometer) using dimethyl sulfoxide (DMSO) as a free radical trapping agent.
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