Melting points of compounds (1–3 ) were determined on a Bicote melting point apparatus and are uncorrected. UV-visible spectra were recorded on a Hitachi-U-3200 spectrometer, IR spectra on an FT-IR instrument (Nicolet 380), UV-visible spectra on a Shimadzu spectrometer, and 1H-NMR (500 MHz), 13C-NMR (600 MHz), HMBC (600 MHz) and HSQC (600 MHz spectra on an AVANCE AV-600 Cryoprob NMR instrument in CDCl3. HR-EI-MS spectra were measured on a JEOL JMS 600H mass spectrometer; EI source 70 eV. Normal-phase column chromatography (CC) was performed by using silica gel (Merck). TLC was run on pre-coated aluminum plates with silica gel 60 (F254; Merck).
U 3200 spectrometer
Manufactured by Hitachi
The U-3200 spectrometer is a compact and versatile laboratory instrument designed for high-performance spectroscopic analysis. It features a dual-beam optical system and a high-resolution monochromator, allowing for accurate and reliable measurement of absorption, transmission, and reflectance spectra across a wide range of wavelengths.
Automatically generated - may contain errors
Lab products found in correlation
Jms 600h mass spectrometer, by JEOL (2 mentions)
Silica gel 60, by Merck Group (2 mentions)
Silica gel, by Merck Group (1 mentions)
Nicolet 380, by Thermo Fisher Scientific (1 mentions)
Acetic acid, by Merck Group (1 mentions)
Uv 240, by Hitachi (1 mentions)
Silver nitrate, by Merck Group (1 mentions)
3 protocols using u 3200 spectrometer
1
Characterization of Novel Compounds
2
Characterization of Diclofenac Sodium Derivative
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Melting points were determined using a Bicote (Biby Scientific Limited) apparatus. UV–visible spectra were recorded on a Hitachi-U-3200 spectrometer, and FT-IR spectra were obtained using a Nicolet 380 instrument from Thermo Scientific. UV–visible spectra were also recorded on a Shimadzu spectrometer. NMR spectra (1H at 600 MHz, 13C at 150 MHz) and HMBC spectra were recorded on an Avance AV-600 Cryoprob NMR instrument in CDCl3. EI-MS measurements were conducted on a JEOL JMS 600H mass spectrometer with an EI source set at 70 eV. Diclofenac sodium was purchased from Suzhou Ausun Chemical Co., Ltd., China. Acetic acid and silica gel 60 (0.063–0.200 mm, 5 × 60 cm) were purchased from Merck (Germany). Normal saline was used as a control in all experiments.
3
Synthesis and Characterization of Silver Nanoparticles
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Silver nitrate (AgNO3), sodium borohydride (NaBH4), sodium hydroxide (NaOH), sodium chloride (NaCl), methanol (MeOH), dimethylformamide (DMF) and hydrochloric acid (HCl) were purchased from Merck. Deionized water was used for synthesis of AgNPs. A digital pH meter model 510 (Oakton, Eutech) equipped with a glass working electrode and a reference Ag/AgCl electrode was used. UV¿vis spectra were recorded with a Shimadzu UV-240, Hitachi U-3200 spectrometer with a path length of 1 cm. The FTIR spectra were recorded using Shimadzu IR. Microscopic image of synthesized AgNPs was taken with a Zeiss Libra transmission electron microscope (TEM) operated at 120 keV.
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