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23 Newest Publications about the topic fluorescence spectrometers

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Calcium and Phosphorus Detection Using Benchtop Versus Handheld X‐ray Fluorescence Spectrometers

16-Sep-2015 | Aaron R. Kuzel, Angi M. Christensen, Susan M. Marvin, Journal of Forensic Sciences, 2015

Abstract Elemental analysis of calcium (Ca) and phosphorus (P) has been shown to be useful in differentiating skeletal and nonskeletal material. X‐ray fluorescence spectrometry (XRF) is an attractive, nondestructive technique for forensic anthropologists, and the development of portable XRF ...

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Tyrosine/tyrosinate fluorescence at 700MPa: A pressure unfolding study of chicken ovomucoid at pH12

04-Aug-2013 | Author(s): Akihiro Maeno , Hiroshi Matsuo , Kazuyuki Akasaka, Biophysical Chemistry, 2013

Publication date: Available online 29 July 2013 Source:Biophysical Chemistry Author(s): Akihiro Maeno , Hiroshi Matsuo , Kazuyuki Akasaka The utility of tyrosine/tyrosinate fluorescence for pressure-unfolding studies of Trp-lacking proteins has been explored for the first time, with ...

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Application of a portable XRF analyzer to investigate the medieval wall paintings of Yemrehanna Krestos Church, Ethiopia

09-Jul-2013 | Kidane Fanta Gebremariam, Lise Kvittingen, Florinel‐Gabriel Banica, X-Ray Spectrometry, 2013

Despite the large body of ancient Ethiopian works of art in the form of murals, icons, and illuminated manuscripts, the physicochemical examinations carried out on them are few. This study is an in situ investigation of the wall paintings in the early 12th century Yemrehanna Krestos Church, ...

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Measurement of K x-ray fluorescence parameters in elements with 24≤Z≤65 in an external magnetic field

18-Mar-2013 | Radiation Physics and Chemistry, 2013

April 2013 Publication year: 2013Source:Radiation Physics and Chemistry, Volume 85 The effect of the external magnetic field has been investigated on the K x-ray fluorescence parameters (Kα, Kβ and total K x-rays fluorescence cross sections, fluorescence yields, I Kβ /I Kα ...

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One-Step Sensitive Detection of Salmonella typhimurium by Coupling Magnetic Capture and Fluorescence Identification with Functional Nanospheres

04-Jan-2013 | Cong-Ying Wen; Jun Hu; Zhi-Ling Zhang; Zhi-Quan Tian; Guo-Ping Ou; Ya-Long Liao; Yong Li; Min Xie; Zi-Yong Sun; Dai- ..., Analytical Chemistry, 2013

Sensitive, rapid, and reliable detection of bacteria has always been pursued due to the great threat of the bacteria to human health. In this study, a convenient one-step strategy for detecting Salmonella typhimurium was developed. Immunomagnetic nanospheres (IMNS) and immunofluorescent ...

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Optimization of the Single-Phased White Phosphor of Li2SrSiO4: Eu2+, Ce3+ for Light-Emitting Diodes by Using the Combinatorial Approach Assisted with the Taguchi Method

20-Nov-2012 | Lei Chen; Anqi Luo; Yao Zhang; Fayong Liu; Yang Jiang; Qingsheng Xu; Xinhui Chen; Qingzhuo Hu; Shi-Fu Chen; Kuo-Ju C ..., Journal of Combinatorial Chemistry, 2012

The best performance of the phosphor Li2SrSiO4: Eu2+, Ce3+ in terms of luminescence efficiency (LE), color rendering index (CRI) and color temperature (Tc) for light-emitting diode application was optimized with combinatorial approach. The combinatorial libraries were synthesized with ...

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Electrospinning preparation and properties of Fe3O4/Eu(BA)3phen/PVP magnetic-photoluminescent bifunctional composite nanofibers

21-Sep-2012 | Qianli Ma, Wensheng Yu, Xiangting Dong, Jinxian Wang, Guixia Liu, Jia Xu, Journal of Nanoparticle Research, 2012

Europium complex Eu(BA)3phen (BA = benzoic acid, phen = 1,10-phenanthroline) and ferroferric oxide nanoparticles were incorporated into polyvinyl pyrrolidone (PVP) and electrospun into composite fibers. The average diameter of the composite fibers was about 265 ± 26 nm. The morphology and ...

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Novel Microwave Dielectric Response of Ni/Co-doped Manganese Dioxides and Their Microwave Absorbing Properties

18-Jul-2012 | Yuping Duan; Zhuo Liu; Hui Jing; Yahong Zhang; Shuqing Li, Journal of Materials Chemistry, 2012

A facile redox reaction between KMnO4 and MnSO4 was carried out to investigate the dielectric response and microwave absorbing properties of Ni/Co-doped MnO2. The samples were characterized by X-ray powder diffraction (XRD), X-ray fluorescence spectrometer (XRF), scanning electron microscopy ...

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Formation of the background component of the analytical signal in the long-wavelength region of X-ray fluorescence spectrum

24-Feb-2012 | G. V. Pavlinskii, M. S. Gorbunov, L. I. Vladimirova, Journal of Analytical Chemistry, 2012

Components of X-ray background in the long-wavelength spectral region of a crystal diffraction X-ray fluorescence spectrometer were calculated. The calculations took into account the bremsstrahlung radiation of free electrons, diffuse scattering and fluorescence of the crystal analyzer, and ...

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Study of uranium contamination of ground water in Punjab state in India using X-ray fluorescence technique

31-Jan-2012 | M. Alrakabi, G. Singh, A. Bhalla, S. Kumar, S. Kumar, A. Srivastava, B. Rai, N. Singh, J. S. Shahi, D. Mehta, Journal of Radioanalytical and Nuclear Chemistry, 2012

The elemental concentration of uranium in the samples collected from the ground water and the canal water in the Bathinda district of Punjab state, India, have been investigated using X-ray fluorescence technique. The residues obtained after drying the water samples were analysed using the energy ...

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