uv/vis Articles

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752S UV-VIS Spectrophotometer

Display Model: 4 digital LED Lamp: Patent assembled Hamamatsu L2D2 long life Deuterium Lamp and RoYal long life Halogen-Tungsten Lamp ...

L Series Split Beam UV-VIS Spectrophotometer

The L series of spectrophotometers adopt proportion double beam survey optical system, and blazed holographic gratings. They have outstanding test precision and very competitive prices. ...

Glod S54 UV-Visible Spectrophotometer

MODEL: Gold S54 Product Standard: Enterprise Standard Q/SEEK3 DISPLAY STYLE: 4 LED DEMENSION: 450*435*305 ...

Heterogeneous photocatalytic degradation of 4-nitrophenol by visible light responsive TiO2-polyaniline nanocomposites

by IWA Publishing  (Jan. 23, 2015)

Different compositions of TiO2-polyaniline composites were prepared via chemical oxidative polymerisation of aniline over TiO2 nanoparticles followed by hydrothermal treatment. The prepared composites were characterised by various physicochemical techniques. From UV-VIS digital replay system (DRS) analysis, the shifts of the absorption maximum ...

Combined SAXS/UV−vis/Raman as a diagnostic and structure resolving tool in materials and life sciences applications

by B&W Tek, Inc  (Jan. 31, 2014)

Abstract: In order to diagnose and fully correlate structural, chemical, and functional features of macromolecules and particles in solution, we propose the integration of spectroscopy and scattering on the same measuring volume and at the same time in a dedicated sample environment with multiple probes. Combined SAXS/UV−vis and SAXS/Raman ...

Influence of local calibration on the quality of online wet weather discharge monitoring: feedback from five international case studies

by IWA Publishing  (Jan. 21, 2015)

This paper reports about experiences gathered from five online monitoring campaigns in the sewer systems of Berlin (Germany), Graz (Austria), Lyon (France) and Bogota (Colombia) using ultraviolet–visible (UV–VIS) spectrometers and turbidimeters. Online probes are useful for the measurement of highly dynamic processes, e.g. combined ...

Quantification of polymer concentration in water using UV-Vis spectroscopy

by IWA Publishing  (Jun. 25, 2013)

The goal of this study was to develop a method that uses UV-Vis spectroscopy for the determination of residual polymer concentration water and environmental samples. UV-Vis absorbance measurements are quick and simple and can be usefully applied in research and practice. Five different polymers exhibiting a wide range of polymer characteristics ...

Feed-forward coagulant control using online UV/Vis monitoring

by IWA Publishing  (Apr. 3, 2013)

Water quality from the Murray River, Australia, can vary considerably and is expected to become more challenging to treat due to recent drought followed by widespread flooding and future climate change impacts. Better tools are required to help plant operators maintain water quality. Morgan water treatment plant (WTP) operates overnight to take ...

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