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61 Newest Publications about the topic uv lamps

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Azo Monomers Exhibiting Low Layer Shrinkage at the SmA–SmC Transition and trans–cis Light‐Induced Isomerization

25-Sep-2012 | Tonatiuh García, Leticia Larios‐López, Rosa Julia Rodríguez‐González, José Román Torres‐Lubián, Dámaso Navarro‐Rodríguez, ChemPhysChem, 2012

Abstract Methacrylic monomers containing a (phenylene)azobenzene unit substituted with a lateral cyano group and alkyl chains of different length are synthesized and characterized by NMR techniques. Their liquid‐crystalline properties are studied by differential scanning calorimetry, ...

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Pteridine-based fluorescent pH sensors designed for physiological applications

17-Sep-2012 | Na’il Saleh, John Graham, Akef Afaneh, Yaseen A. Al-Soud, Georg Schreckenbach, Fatima T. Esmadi, Journal of Photochemistry and Photobiology A: Chemistry, 2012

New derivatives of pteridine, namely 6,7-diphenyl-2-morpholinylpterin (DMPT) and 6-thienyllumazine (TLM) were designed and easily synthesized in a rational way for pH-fluorescence sensing near physiological pH. The dual-excitation ratiometric sensing was based on the distinct spectral properties ...

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UV-initiated crosslinking of photoreactive acrylic pressure-sensitive adhesives using excimer-laser

13-Aug-2012 | Z. Czech, A. Kowalczyk, J. Kabatc, L. Shao, Y. Bai, J. Świderska, Polymer Bulletin, 2012

UV-initiated crosslinking technology is well established in the market and allows the production of a wide range of ultraviolet (UV)-crosslinkable pressure-sensitive adhesives (PSA) with interesting features. The balance between such properties as adhesive and cohesive strengths within the ...

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Preparation of visible-light-excited luminescence enhancement solutions for time-resolved luminescence detection of europium biolabel

01-Aug-2012 | Jingli Yuan, Analyst, 2012

Dissociation enhanced lanthanide fluoroimmunoassay (DELFIA) system using EDTA-Eu3+ complex derivatives as biolabels is the most widely used time-resolved luminescence bioassay system for clinical diagnostics, but it requires a UV lamp ...

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One-pot synthesis of ferromagnetic Fe2.25W0.75O4 nanoparticles as a magnetically recyclable photocatalyst

02-Jul-2012 | Jinxue Guo, Xiaoyu Zhou, Lei Chen, Yibin Lu, Xiao Zhang, Wanguo Hou, Journal of Nanoparticle Research, 2012

To pursue the novel magnetically recyclable photocatalyst, W has been successfully doped in Fe3O4 host matrix for the fabrication of Fe2.25W0.75O4 nanoparticles through a one-pot hydrothermal progress with the addition of sodium dodecyl benzene sulfonate. The size range of the obtained ...

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Automated system for on-line determination of dimethylarsinic and inorganic arsenic by hydride generation–atomic fluorescence spectrometry

25-Jun-2012 | L. L. Chaparro, L. Ferrer, V. Cerdà, L. O. Leal, Analytical and Bioanalytical Chemistry, 2012

A multisyringe flow-injection approach has been coupled to hydride generation–atomic fluorescence spectrometry (HG-AFS) with UV photo-oxidation for dimethylarsinic (DMA), inorganic As and total As determination, depending on the pre-treatment given to the sample (extraction or digestion). The ...

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Influence of temperature and UV intensity on photo-polymerization reaction studied by photo-DSC

30-May-2012 | Marius Ciprian Rusu, Christophe Block, Guy Van Assche, Bruno Van Mele, Journal of Thermal Analysis and Calorimetry, 2012

Photo-DSC was used to investigate the cure kinetics of a photo-initiated resin. The exothermal photo-polymerization reactions were performed in isothermal mode. The irradiation of photo-initiated resin was studied under different conditions of temperature, UV lamp intensity, and reaction ...

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Influence of natural and accelerated weathering on performances of photoselective greenhouse films

11-May-2012 | Russo, Pietro; Acierno, Domenico; Marinucci, Luca; Greco, Antonio; Frigione, Mariaenrica, Journal of Applied Polymer Science, 2012

Abstract The research aims to investigate the effects of natural and accelerated weathering on polyethylene‐based films. At this regard, monolayer films of low density/linear low density polyethylene blends, containing commercially available organic pigments and an UV absorber of the ...

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Salen-Based Chiral Fluorescence Polymer Sensor for Enantioselective Recognition of α-Hydroxyl Carboxylic Acids

03-May-2012 | Fengyan Song; Guo Wei; Lu Wang; Jiemin Jiao; Yixiang Cheng; Chengjian Zhu, The Journal of Organic Chemistry, 2012

(R,R)-Salen-based chiral polymer P-1 was synthesized by the polymerization of 5,5′-((2,5-dibutoxy-1,4-phenylene)bis(ethyne-2,1-diyl))bis(2-hydroxy-3-(piperidin-1-ylmethyl) benzaldehyde (M-1) with (1R,2R)-cyclohexane-1,2-diamine (M-2) via nucleophilic addition– elimination reaction, and ...

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Ultra-trace determination of mercury in river waters after online UV digestion of humic matter

25-Apr-2012 | Kerstin Leopold, Anja Zierhut, Jessica Huber, Analytical and Bioanalytical Chemistry, 2012

A fully automated online ultraviolet (UV) digestion method for subsequent mercury (Hg) quantification in humic matter containing river waters is reported. The new developed flow injection analysis system (FIAS) consists basically of a UV lamp, a meander-form quartz glass reaction tube for online ...

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