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Mingliang Bao, Peter J. Joza, Andrew Masters and William S. Rickert

References 1. Health Canada: Tobacco Reporting Regulations; The Canada Gazette Part II, June 29, 2005, available at: (accessed August 2014). 2. Liu, C., K.G. McAdam, and T.A. Perfetti: Some Recent Topics in Cigarette Smoke Science; Mini Rev. Org. Chem. 8 (2011) 349-359. 3. Food and Drug Administration: Harmful and Potentially Harmful Constituents in Tobacco Products and Tobacco Smoke; Established List, Federal Register Vol. 77, No. 64

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Ezzat Abdel-Lateef, Faten Mahmoud, Olfat Hammam, Eman El-Ahwany, Eman El-Wakil, Sherihan Kandil, Hoda Abu Taleb, Mortada El-Sayed and Hanaa Hassenein

.ajbas.2012.4.1.61106. 16. A. Neha and P. Shashi, GC-MS analysis of the essential oil of Celastrus paniculatus Willd. seeds and antioxidant, anti-inflammatory study of its various solvent extract, Ind. Crop. Prod. 61 (2014) 345-351; DOI: 10.1016/j.indcrop.2014.07.025. 17. M. M. Bradford, A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein dye binding, Anal. Biochem. 72 (1976) 248-254; DOI: 10.1016/0003-2697(76)90527-3. 18. G. Repetto, A. del Peso and J. L

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N Higashi, H Shikata, M Shimoda and I Hayakawa

for the clarification of malodorous com-pounds by GC-Olfactometry; J. Odor Control. 9 (44) (1980) 20–27. 13. Guth, H. and W. Grosch: Identification of potent odourants in static headspace samples of green and black tea powders on the basis of aroma extract dilution analysis (AEDA); Flavour Fragrance J. 8 (1993) 173–178. 14. Grosch, W.: Detection of potent odorants in food by aroma extract dilution analysis; Trends Food Sci. Technol. 4 (1993) 68-73. 15. Grosch, W.: Determination of potent

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S Liu, LT Taylor, MF Borgerding, WM Coleman and BR Bombick

, T.A., J.M. Wilkins, J.B. Forehand, and S.C. Moldoveanu: Analysis of Heterocyclic Amines in Mainstream Smoke Using a New GC-MS Technique; Anal. Lett. 34 (2001) 1749-1761. 16. Smith, C.J., G.L. Dooly, and S.C. Moldoveanu: New Technique Using Solid-Phase Extraction for the Analysis of Aromatic Amines in Mainstream Cigarette Smoke; J. Chromatogr. A 991 (2003) 99-107. 17. Smith, C.J., X. Qian, Q. Zha, and S.C. Moldoveanu: Analysis of a - and ß- Carbolines in Mainstream Smoke of Reference Cigarettes by Gas

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A. Bobrowski, S. Żymankowska-Kumon, D. Drożyński, B. Grabowska and K. Kaczmarska

References [1] McKinley, M.D., Lytle, C.A. & Bertsch, W. (1999). Pyrolysis of core resins used in Metalcasting. AFS Transactions. 107, 407-412. [2] Liang, J.J. & Tsay, G.S. (2010). Composition and yield of the pernicious and stench gases in furan sand model founding process. Sustainable Environment Research. 20(2), 115-125. [3] Grabowska, B., Kaczmarska, K., Bobrowski, A., Żymankowska-Kumon, S. & Kurleto-Kozioł, Ż. (2017). TGDTG- DSC, FTIR, DRIFT and Py-GC-MS studies of thermal decomposition for poly

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Z. Šustere, J. Millers and V. Kampars

GC Analysis of Biodiesel Synthesis Reaction Mixtures Formed in Rapeseed Oil Reaction with Ethyl Acetate

There are publications concerning the studies on interesterification of oils with methyl and ethyl acetate using immobilized lipase as a catalyst. With this approach, triacetin (TA) could be produced instead of glycerol as the main by-product, possessing a much higher commercial value. In this study, the synthesis of biodiesel (BD) by interesterification of triglycerides (TG) and ethyl acetate in the presence of sodium methoxide catalyst has been investigated. Apart from the BD and TA, the reaction mixture may contain intermediates, such as diacyl monoacetyl glycerols (DiGlAc) and monoacyl diacetyl glycerols (MonoGlAc2). Sodium methoxide solution in methanol as a catalyst may yield also such products as monoglyceride, diglyceride and glycerol in low concentrations. The reaction mixture may also contain unreacted TG and undistilled ethyl acetate. In the case of interesterification with ethyl acetate, the degree of conversion may be low, so that the known method (EN 14105) cannot be applied because the TG concentration falls outside the conventional calibration range. In order to obtain the information concerning the composition of interesterification reaction mixtures, a new calibration procedure for the determination of TG in the range from 0.5% to 80% (wt %) was developed in the present study, and the peaks of DiGlAc and MonoGlAc2 were identified.

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Anna Jesionek, Adam Kokotkiewicz, Paulina Wlodarska, Natalia Filipowicz, Adam Bogdan, Renata Ochocka, Aleksandra Szreniawa-Sztajnert, Bozena Zabiegala, Adam Bucinski and Maria Luczkiewicz

Abbreviations: AR – Anderson’s Rhododendron (medium) DMRT – Duncan’s multiple range test FW – fresh weight GC/MS – gas chromatography-mass spectrometry Gi – growth index IAA – indole-3-acetic acid IBA – indole-3-butyric acid 2iP – 2-isopentenyladenine NAA – 1-naphthaleneacetic acid PGR – plant growth regulator RAPD – Random Amplified Polymorphic DNA SH – Schenk and Hildebrandt (medium) TDZ – thidiazuron WP – Woody Plant (medium) ½WP – half-strength Woody Plant (medium) REFERENCES A nderson WC. 1978. Tissue culture

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Elka Kraleva, Milena Pavlova, Elisa Mazo Bedia, Petya Borisova and Luchezar Pehlivanov

from the River Danube in Russe and Lake Srebarna (Bulgaria). Environment Geol. 1999;37(1-2):40-46. [15] Clarke KR, Warwick RM. Change in Marine Communities: An Approach to Statistical Analysis and Interpretation. Plymouth, UK: Plymouth Marine Laboratory; 2001;144-172. [16] Clarke KR, Gorley RN. PRIMER v6: User Manual/Tutorial. Plymouth: PRIMER-E; 2006;192-200. [17] Varadinova ED, Pechlivanov LZ, Stoichev SA, Uzunov YI. Recovering and succession of the species diversity of macrozoobenthos in Srebarna Biosphere Reserve

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CL Rainey, JR Shifflett, JV Goodpaster and DZ Bezabeh

GC); CRM 61 (Deter-mination of 1,2-Propylene Glycol and Glycerol in Tobacco Products by HPLC); Centre for Scientific Research Relative to Tobacco, 2010. 10.CORESTA Recommended Method No. 60: Determination of 1,2-Propylene Glycol and Glycerol in Tobacco and Tobacco Products by Gas Chro-matography; Cooperation Centre for Scientific Research Relative to Tobacco, 2011. 11. Health Canada: Determination of Humectants in Whole Tobacco; Health Canada -Official Method T-304, 1999. 12. Schubert, J., J. Hahn, G. Dettbarn, A

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