The Beckman DU spectrophotometer met those requirements. The second advance introduced the use of membrane filters for microfiltration of particles from seawater. Prior to the use of membrane filters, one had to resort to fine mesh netting or centrifugation....
6) fluorescence spectrophotometer 荧光分光光度计 1. A new test method for wavelength accuracy and repeatability of model 960fluorescence spectrophotometerare introduced. 介绍一种检定960型荧光分光光度计波长准确度及重复性的新方法。 2. It was studied that Apolipoproteins AⅠand B were determined by sca...
12.atomic absorption spectrophotometer原子吸收分光光度计 13.flame atomic fluorescence spectrometry火焰原子荧光光谱法 14.DETERMINATION OF SELENIUM IN GRAINS BY MICROWAVE DIGESTION-HYDRIDE GENERATION ATOMIC FLUORESCENCE SPECTROMETRY;微波消解原子荧光光度法测定粮谷中的硒 15.Determination of lead in aquatic products...
This quantity can be measured on a conventional spectrophotometer in either monochromatic or polychromatic illumination mode. However, for a fluorescent sample, a simple ratio measurement of the total flux leaving the specimen to the incident flux as a function of the incident wavelength can provide ...
The major difference between this detector and a double-beam spectrophotometer is that this detector employs only one flow cell rather than a simultaneous sample and reference flow cell pair. The detector obtains a fluorescence spectrum by performing the following types of scan on the flow cell: ...
Fluorescence analysis is a fast and sensitive method, and has great potential application in trace detection of environmental toxins. However, many important environmental toxins are non-fluorescent substances, and it is still a challenge to construct a
The photoluminescence behavior was recorded using a Hitachi F-7000 fluorescence spectrophotometer with an external 0- to 2-W adjustable diode laser integrated with an optical fiber (Beijing Hi-Tech Optoelectronic Co., China). Cytotoxicity assay. HeLa cells provided by the Institute of Sports Medicine...
UV Absorption Spectroscopy—High resolution absorbance spectra were collected on a Hewlett Packard 8453 UV-visible diode-array spectrophotometer (Agilent, Palo Alto, CA) equipped with a Peltier temperature controller. A protein concentration of 0.055 mg/ml was used. Spectra were analyzed between 200 ...
UV-Vis spectra and the optical transmittance are recorded in a quartz cell (light path 10 mm) on a Shimadzu UV-2700 spectrophotometer equipped with a temperature controller. The UV-Vis spectra of film are recorded with film holder, and the thickness of film was measured as 0.5 mm. ...
Protein-induced fluorescence enhancement (PIFE) is a popular tool for characterizing protein-DNA interactions. PIFE has been explained by an increase in local viscosity due to the presence of the protein residues. This explanation, however, denies the op