Climatology of the stratospheric BrO vertical distribution by balloon-borne UV–visible spectrometry

2002 ◽  
Vol 107 (D24) ◽  
Author(s):  
I. Pundt
Keyword(s):  
Vertical Distribution ◽  
Uv Visible ◽  
Visible Spectrometry

Use of TLC and UV–Visible Spectrometry for Fingerprinting of Dietary Supplements

2015 ◽  
Vol 78 (13-14) ◽  
pp. 929-935 ◽  
Author(s):  
Ioana A. Sima ◽  
Costel Sârbu ◽  
Rodica D. Naşcu-Briciu
Keyword(s):  
Dietary Supplements ◽  
Uv Visible ◽  
Visible Spectrometry

Screening and quantification of the enzymatic deglycosylation of the plant flavonoid rutin by UV–visible spectrometry

2017 ◽  
Vol 229 ◽  
pp. 44-49 ◽  
Author(s):  
Gisela Weiz ◽  
Javier D. Breccia ◽  
Laura S. Mazzaferro
Keyword(s):  
Uv Visible ◽  
Visible Spectrometry

Determination of Total Phenolic Content in Olive Oil Samples by UV–visible Spectrometry and Multivariate Calibration

2012 ◽  
Vol 5 (6) ◽  
pp. 1311-1319 ◽  
Author(s):  
Edwar Fuentes ◽  
María E. Báez ◽  
Manuel Bravo ◽  
Camila Cid ◽  
Fabián Labra
Keyword(s):  
Olive Oil ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Multivariate Calibration ◽  
Total Phenolic ◽  
Uv Visible ◽  
Visible Spectrometry

scholarly journals Synthesis, Characterization, Thermochromism, and Photochromism of Aromatic Aldehyde Hydrazone Derivatives

2016 ◽  
Vol 2016 ◽  
pp. 1-8
Author(s):  
ShaoPing Zhu ◽  
Yuan Chen ◽  
Jun Sun ◽  
YuTing Yang ◽  
ChuanJun Yue
Keyword(s):  
Uv Light ◽  
Time Variable ◽  
Scanning Calorimetry ◽  
H Nmr ◽  
Thermochromic Properties ◽  
Temperature Variable ◽  
Uv Visible ◽  
The Relationship ◽  
C Nmr ◽  
Visible Spectrometry

The Schiff bases N-(5-phenylthiazole-2-yl)-2-hydroxylnaphthaldehydehydrazone (1), N-(4′-chloro-5-phenylthiazole-2-yl)-2-hydroxylnaphthaldehydehydrazone (2), and N-(4′-nitro-5-phenylthiazole-2-yl)-2-hydroxylnaphthaldehydehydrazone (3) were synthesized. These compounds were characterized by using IR,1H NMR,13C NMR, and MS. The photochromism of the compounds was investigated by IR and UV-visible spectrometry which is time variable under irradiation of 254 nm UV light. The thermochromism of the compounds was studied using temperature-variable IR, UV-visible spectrometry, TG, and differential scanning calorimetry (DSC). The results suggested that compound2showed thermochromism properties and compounds2and3displayed photochromism properties. The relationship between the substituents species and photochromic or thermochromic properties of these compounds was revealed as well.

Electrochemical Oxidation of 2,4,6-Trinitrophenol on Ti/SnO2-Sb2O5/PbO2 Anode for Waste Water Treatment

2013 ◽  
Vol 864-867 ◽  
pp. 1564-1568 ◽  
Author(s):  
Bin Xue ◽  
Jing Han Zhai ◽  
Jian Ya Wang ◽  
Jian Sun ◽  
Ning Hao ◽  
...  
Keyword(s):  
Waste Water ◽  
Cyclic Voltammetry ◽  
Electrochemical Oxidation ◽  
Sodium Sulfate ◽  
Potassium Dichromate ◽  
Electrochemical Behaviour ◽  
Waste Water Treatment ◽  
Electrolysis Process ◽  
Uv Visible ◽  
Visible Spectrometry

The electrochemical oxidation of 2,4,6-trinitrophenol on Ti/SnO2-Sb2O5/PbO2electrode was studied by cyclic voltammetry in this paper. The electrochemical behaviour of the electrode in sodium sulfate solution and in the mixture solution of sodium sulfate and 2,4,6-trinitrophenol has been studied. The experimental results of cyclic voltammetry showed that acidic media was suitable for efficient electrochemical oxidation of 2,4,6-trinitrophenol. Some electro-generated reagent formed in the electrolysis process and 2,4,6-trinitrophenol could be oxidized by the electro-generated reagent. The Ti/SnO2-Sb2O5/PbO2electrode was used as the anode and the electrolysis experiment was carried out under the optimized conditions. The electrolysis process was monitored by UV-visible spectrometry and high performance liquid chromatography (HPLC), and the chemical oxygen demand (COD) was determined by the potassium dichromate method. The mechanism of 2,4,6-trinitrophenol be oxided was studied primarily by the cyclic voltammetry and UV-visible spectrometry. The results of electrolysis experiment demonstrated the possibility that the electrode was used as an anode for electrochemical treatment of 2,4,6-trinitrophenol contained in the waste water.

Construction of Biodegradable Multilayer Films via Layer-by-Layer Self-Assembly as Gene Delivery System

2005 ◽  
Vol 288-289 ◽  
pp. 101-104 ◽  
Author(s):  
Ke Feng Ren ◽  
Jian Ji ◽  
Jia Cong Shen
Keyword(s):  
Self Assembly ◽  
Multilayer Films ◽  
Layer By Layer ◽  
The Novel ◽  
Gene Delivery System ◽  
Layer Method ◽  
Uv Visible ◽  
Spectrometry Measurement ◽  
Visible Spectrometry

Films composed of alternating layers of protamine and DNA were constructed using the layer-by-layer method on quartz and subsequently studied the enzymic degradation in vitro. UV-visible spectrometry measurement indicated the uniform assembly of Protamine/DNA multilayer films. UV-visible spectrometry and fluorescence spectrometry results revealed that the Protamine/DNA multilayer films were in vitro enzymic biodegradable. The novel biodegradable multilayer of Protamine/DNA may have great potential for gene therapy applications in tissue engineering, medical implant etc.

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