Lambda 20 uv vis spectrophotometer
The Lambda 20 UV VIS Spectrophotometer is a dual-beam instrument designed for ultraviolet and visible spectroscopy. It measures the absorption or transmission of light through a sample across a specified wavelength range. The instrument features a monochromator, photodetectors, and a data processing system to analyze the spectral data.
Lab products found in correlation
25 protocols using lambda 20 uv vis spectrophotometer
Magnolol Quantification in MAG-SMOF
Antioxidant Activity of Propolis Extract
Optical and Electrochemical Characterization of Polymers
Example 2
Film UV-Vis absorption spectra of polymers from Example 2 were acquired on a Perkin Elmer Lambda 20 UV/VIS Spectrophotometer. All film samples were spin-cast on ITO/ZnO substrates. Solution UV-Vis absorption spectra at elevated temperatures were collected on a Perkin Elmer Lambda 950 UV/VIS/NIR Spectrophotometer. The temperature of the cuvette was controlled with a Perkin Elmer PTP 6+6 Peltier System, which is supplied by a Perkin Elmer PCB 1500 Water Peltier System. Before each measurement, the system was held for at least 10 min at the target temperature to reach thermal equilibrium. A cuvette with a stopper (Sigma Z600628) was used to avoid volatilization during the measurement. The onset of the absorption is used to estimate the polymer bandgap.
Cyclic voltammetry was carried out on a CHI760E electrochemical workstation with three electrodes configuration, using Ag/AgCl as the reference electrode, a Pt plate as the counter electrode, and a glassy carbon as the working electrode. Polymers were drop-cast onto the electrode from DCB solutions to form thin films. 0.1 mol L−1 tetrabutylammonium hexafluorophosphate in anhydrous acetonitrile was used as the supporting electrolyte. Potentials were referenced to the ferrocenium/ferrocene couple by using ferrocene as external standards in acetonitrile solutions. The scan rate is 0.1 V s−1.
Extraction of Total RNA from Rat Brain Tissue
Nanodisc Formation from DMPC/DMTAP Lipids
Quantifying Propolis Phenolics via Folin-Ciocalteu
Determination of HMF in Honey
Dbp5 ATPase Kinetics and Stimulation
Quantifying Brain Lipid Peroxidation
Characterization of Novel Compounds
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