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Comparison of Tandem Quadrupole Mass Spectrometry and Orbitrap High Resolution Mass Spectrometry for Analysis of Pharmaceutical Residues in Biota Samples

.trac.2010.07.012 [3] E. Van der Heeft, Y. J. C. Bolck, B. Beumer, A. W. J. M. Nijrolder, A. A. M. Stolker, M. W. F. Nielen, “Full-Scan Accurate Mass Selectivity of Ultra-Performance Liquid Chromatography combined with Time-Of- Flight and Orbitrap Mass Spectrometry in Hormone and Veterinary Drug Residue Analysis”, Journal of the American Society for Mass Spectrometry, 2009, vol. 20, N3, pp. 451-463. http://dx.doi.org/10.1016/j.jasms.2008.11.002 [4] EU Commission, “Commission Regulation (EU) No 37/2010 of 22 December 2009 on Pharmacologically

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Reversed-Phase High-Performance Liquid Chromatography Analysis of β-Lactoglobulin and α-Lactalbumin in Different Types of Milk

References [1] L. Ruprichová, M. Králová, I. Borkovcová, L. et. al. “Determination of whey proteins in different types of milk,” Acta Veterinaria BRNO, vol. 83, pp. 67-72, Mar. 2014. http://dx.doi.org/10.2754/avb201483010067 [2] L. I. Boitz, G. Fiechter, R. K. Seifried, et. al. “A novel ultra-high performance liquid chromatography method for the rapid determination of β-lactoglobulin as heat load indicator in commercial milk samples,” Journal of Chromatography A, vol. 1386, pp. 98-102, Mar. 2015. http://dx.doi.org/10.1016/j

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Facile Synthesis of Spinel Nanocrystalline ZnFe2O4: Enhanced Photocatalytic and Microbial Applications

Abstract

Spinel ZnFe2O4 was developed successfully as a heterogeneous-Fenton catalyst for the degradation of Reactive Yellow 86 (RY 86) under UV light. The ZnFe2O4 was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FE-SEM) and UV-diffuse reflectance spectroscopy (UV-DRS). FE-SEM reveals that the some of the particles sizes are in the range from 10 nm to 50 nm. The photocatalytic performance of ZnFe2O4 was evaluated by degradation of RY 86 dye solution under UV light. The degradation rate was highly influenced by pH, initial concentrations of H2O2 and catalyst concentration. The results indicated that ZnFe2O4 could be used as a photocatalyst for treatment of industrial coloured wastewater. The catalyst was reused for five consecutive runs without significant change in its activity. Moreover, the antibacterial effects were investigated.

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Use of Differential Treatment of Illite to Modify Their Structure and Properties / Diferencētas apstrādes pielietojums illītu struktūras un īpašību modificēšanai

of thermal pretreatment conditions of common clays on the performance of clay-based geopolymers binders. Applied Clay Science, 2013, vol. 73, pp. 35-41. http://dx.doi.org/10.1016/j.clay.2012.09.010 9. Stinkule, A., Stinkulis, G. Latvian mineral raw materials, Latvian University Publishing House, 2013 (In Latvian). 10. Latvijas universitāte. Method for separation of submicron particles of illite mineral from illite clay. Kostjukovs, J., Truba-Boginska, A., Actins, A. int. Cl.: C01B 33/40, EP 2840063A1, 25.02.2015 Bulletin 2015

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Clay Ceramic Filter for Water Treatment

, “Development of Ceramic Filter Candle from NSU (Kaolinite Clay) for Household Water Treatment,” International Journal of Multidisciplinary Sciences and Engineering , vol. 6, no. 10, pp. 18–23, Oct. 2015. [8] S. Lamichhane and B. R. Kansakar, “Comparison of the Performance of Ceramic Filters in Drinking Water Treatment,” International Journal of Engineering and Innovative Technology , vol. 3, no. 1, pp. 481–485, Jul. 2013. [9] I. Etikan, S. A. Musa and R. S. Alkassim, “Comparison of Convenience Sampling and Purposive Sampling,” American Journal of Theoretical

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Synthesis, Characterization and Synthetic Applications of Fly-ash:H3PO4 Nanocatalyst

-materials: Opportunities for enhanced performances,” Journal of Physics and Chemistry of Solids , vol. 71, no. 2, pp. 100–108, Feb. 2010. https://doi.org/10.1016/j.jpcs.2009.09.010 [14] D. R. Koenig, E. M. Weig, and J. P. Kotthaus, “Ultrasonically driven nanomechanical single-electron shuttle,” Nature Nanotechnology , vol. 3, no. 8, pp. 482–485, Jul. 2008. https://doi.org/10.1038/nnano.2008.178 [15] P. Moroz, N. Kholmicheva, B. Mellott, G. Liyanage, U. Rijal, E. Bastola, K. Huband, E. Khon, K. McBride, and M. Zamkov, “Suppressed Carrier Scattering in CdS-Encapsulated PbS

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Chemically and Thermally Activated Illite Clay from Latvia / Ķīmiski un termiski aktivēts Latvijas illīta māls.

11. Zibouche, F., Kerdjoudj, H., d’Espinose de Lacaillerie, J. B., Van Damme, H. Geopolymers from algerian metakaolin. Influence of secondary minerals. Applied Clay Science, 2009, vol. 43, issue 3−4, pp. 453−458. http://dx.doi.org/10.1016/j.clay.2008.11.001 12. Dombrowski, K., Buchwald, A., Weil, M. The influence of calcium content on the structure and thermal performance of fly ash based geopolymers. Journal of Materials Science, 2007, vol. 42, issue 9, pp. 3033−3043. http://dx.doi.org/10.1007/s10853-006-0532-7 13. Yip, C. K., Lukey

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Experimental studies on equilibrium adsorption isosteres and determination of the thermodynamic quantities of polar media on alumina Al2O3

Abstract

The present work is a revieif of theoretical and experimental study on the adsorption performance of the adsorbent Alumina (Al2O3) used in the adsorption system. An experimental investigation on the equilibrium adsorption isosteres at low pressure (< 1 atm) of working pairs Al2O3/H2O and Al2O3/C2H6O2 is carried out. The isovolume measurement method is adopted in the test setup to directly measure the saturated vapor pressures of working pairs at vapor-liquid equilibrium (dG=0 and dμi=0). Quantity adsorbed is determined from pressure, volume and temperature using gas law. The isosteric heat of adsorption is calculated from the slope of the plot of lnP versus 1/T different amounts of adsorbate onto adsorbent as follows: 0,01 vol% Al2O3/H2O; 0,03 vol% Al2O3/H2O; 0,1 vol% Al2O3/H2O; 0,01 vol% Al2O3/C2H6O2; 0,03 vol% Al2O3/C2H6O2; 0,1 vol% Al2O3/C2H6O2. This study shows that adsorption working pair Al2O3 C2H6O2 has better adsorption performances than those of the A2O3/H2O. Surface acidity! is a most important property! far both adsorption and catalysis and therefore is examined structure of active sites of alumina surface. Thermodynamic parameters such as isosteric heat of adsorption, isosteric enthalpy and entropy of adsorption are critical design variables in estimating the performance and predicting the mechanism of an adsorption process and are also one of the basic requirements for the characterization and optimization of an adsorption process

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Design of Dye-Sensitized Solar triphenodioxazine using TiO2 as a semiconductor

References [1] Selopal, G.S.; Wu, H.P.; Lu, J.; Chang, Y.C.; Wang, M.; Vomiero, A.; Concina, I.; Diau, E.W., Metal-free organic dyes for TiO2 and ZnO dye-sensitized solar cells, Sci Rep., 2016 , 6 , 18756. doi: 10.1038/srep18756. [2] Wu, Y.; Zhu W., Organic sensitizers from D–π–A to D–A–π–A: effect of the internal electron-withdrawing units on molecular absorption, energy levels and photovoltaic performances, Chem. Soc. Rev ., 2013 , 42 , 2039-2058. [3] Gratzel, M., Photovoltaic and photoelectrochemical conversion of solar energy, Phil

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