Rapid fluorescence spectroscopic screening method for the sensitive detection of thiabendazole in red wine

2014 ◽  
Vol 6 (18) ◽  
pp. 7260-7267 ◽  
Author(s):  
Xiu-Di Zhong ◽  
Dong-Sai Fu ◽  
Ping-Ping Wu ◽  
Qian Liu ◽  
Guo-Chun Lin ◽  
...  
Keyword(s):  
Fluorescence Spectroscopy ◽  
Absorption Spectroscopy ◽  
Spectral Resolution ◽  
Red Wine ◽  
Screening Method ◽  
Sensitive Detection ◽  
Measurement Sensitivity

This method (d) has the advantage of improving spectral resolution and measurement sensitivity, as well as eliminating the interference of spectral background from red wine, compared with UV-Vis absorption spectroscopy (a) and conventional fluorescence spectroscopy (b).

Surfactant-assisted electroless deposition of silver nanoparticles on Ge crystal for ultra-sensitive detection by surface-enhanced infrared absorption spectroscopy

RSC Advances ◽  
2015 ◽  
Vol 5 (26) ◽  
pp. 20390-20395 ◽  
Author(s):  
Gadupudi Purna Chandra Rao ◽  
Vairaperumal Tharmaraj ◽  
Jyisy Yang
Keyword(s):  
Silver Nanoparticles ◽  
Absorption Spectroscopy ◽  
Infrared Absorption ◽  
Electroless Deposition ◽  
Sensitive Detection ◽  
Infrared Absorption Spectroscopy ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surfactant Assisted

Fabrication of highly sensitive substrates for SEIRA measurements via assistance of surfactant to electrolessly deposit silver nanoparticles on Ge crystal.

Effect of Spectral Resolution on Measurement of Trace Gases in Atmosphere by Differential Optical Absorption Spectroscopy

2008 ◽  
Vol 28 (9) ◽  
pp. 1643-1648
Author(s):  
彭夫敏 彭夫敏 ◽  
谢品华 谢品华 ◽  
张英华 张英华 ◽  
李海洋 李海洋 ◽  
司福祺 司福祺 ◽  
...  
Keyword(s):  
Optical Absorption ◽  
Absorption Spectroscopy ◽  
Spectral Resolution ◽  
Trace Gases ◽  
Differential Optical Absorption Spectroscopy ◽  
Optical Absorption Spectroscopy

Sensitive Detection of Ambient Formaldehyde by Incoherent Broadband Cavity Enhanced Absorption Spectroscopy

2020 ◽  
Vol 92 (3) ◽  
pp. 2697-2705 ◽  
Author(s):  
Jingwei Liu ◽  
Xin Li ◽  
Yiming Yang ◽  
Haichao Wang ◽  
Cailing Kuang ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Sensitive Detection ◽  
Enhanced Absorption ◽  
Cavity Enhanced Absorption Spectroscopy

Spectroscopic Studies on the Interaction between 2-Chlorophenol and Catalase

2011 ◽  
Vol 183-185 ◽  
pp. 206-210
Author(s):  
Qiong Yu Liu
Keyword(s):  
Fluorescence Spectroscopy ◽  
Thermodynamic Parameters ◽  
Absorption Spectroscopy ◽  
Binding Constant ◽  
Spectroscopic Studies ◽  
Critical Distance ◽  
Quenching Mechanism ◽  
Binding Reaction ◽  
Hydrophobic Force ◽  
Binding Distance

The interaction characteristics of 2-chlorophenol (2-CP) with catalase (CAT) were investigated by employing fluorescence spectroscopy and UV-Vis absorption spectroscopy. The intrinsic fluorescence of CAT was quenched distinctly by 2-CP. The quenching mechanism of fluorescence of CAT by 2-CP was observed to be a static quenching procedure. The thermodynamic parameters indicated that the binding reaction was spontaneous and the hydrophobic force played the major role in stabilizing the 2-CP-CAT complex. The binding constant was 1.18×10-4L/mol. The binding distance r and critical distance R0was 1.90 nm and 1.64 nm, respectively.

scholarly journals A self-assembled cyclodextrin nanocarrier for photoreactive squaraine

2016 ◽  
Vol 12 ◽  
pp. 2535-2542 ◽  
Author(s):  
Ulrike Kauscher ◽  
Bart Jan Ravoo
Keyword(s):  
Photodynamic Therapy ◽  
Fluorescence Spectroscopy ◽  
Absorption Spectroscopy ◽  
Photochemical Activity ◽  
Oxygen Species ◽  
Significant Potential ◽  
Self Assembled

Photoreactive squaraines produce cytotoxic oxygen species under irradiation and have significant potential for photodynamic therapy. Herein we report that squaraines can be immobilized on a self-assembled nanocarrier composed of amphiphilic cyclodextrins to enhance their photochemical activity. To this end, a squaraine was equipped with two adamantane moieties that act as anchors for the cyclodextrin vesicle surface. The supramolecular immobilization was monitored by using fluorescence spectroscopy and microscopy and the photochemistry of the squaraine was investigated by using absorption spectroscopy.

Fast and sensitive detection of ochratoxin A in red wine by nanoparticle-enhanced SPR

2016 ◽  
Vol 937 ◽  
pp. 143-150 ◽  
Author(s):  
Aleksandra Karczmarczyk ◽  
Ciril Reiner-Rozman ◽  
Simone Hageneder ◽  
Monika Dubiak-Szepietowska ◽  
Jakub Dostálek ◽  
...  
Keyword(s):  
Ochratoxin A ◽  
Red Wine ◽  
Sensitive Detection
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