Natural Resources Canada 4 articles published in JoVE Chemistry Minimum Burning Pressures of Water-based Emulsion Explosives Richard Turcotte1, Christopher M. Badeen1, Sandra Goldthorp1 1Canmet Canadian Explosives Research Laboratory, Natural Resources Canada We present an apparatus based on hot-wire ignition in a pressurized enclosure and an associated methodology to measure the minimum pressure required to induce sustained combustion in water-based emulsion explosives. This method improves product characterization to allow one to use them more safely during pumping and mixing operations. Chemistry Laboratory Production of Biofuels and Biochemicals from a Rapeseed Oil through Catalytic Cracking Conversion Siauw H. Ng1, Yu Shi1, Nicole E. Heshka1, Yi Zhang1, Edward Little1 1CanmetENERGY, Natural Resources Canada This paper presents an experimental method to produce biofuels and biochemicals from canola oil mixed with a fossil-based feed in the presence of a catalyst at mild temperatures. Gaseous, liquid, and solid products from a reaction unit are quantified and characterized. Conversion and individual product yields are calculated and reported. Environment Extraction and Analysis of Microbial Phospholipid Fatty Acids in Soils Sylvie A. Quideau1, Anne C.S. McIntosh2, Charlotte E. Norris1, Emily Lloret3, Mathew J.B. Swallow4, Kirsten Hannam5 1Department of Renewable Resources, University of Alberta, 2Department of Science, Augustana Faculty, University of Alberta, 3Laboratoire Génie Civil et géo-Environnement, Université de Lille, 4Department of Earth and Environmental Sciences, Mount Royal University, 5Forest Ecology & Production, Great Lakes Forestry Centre, Natural Resources Canada Phospholipid fatty acids provide information about the structure of soil microbial communities. We present methods for extraction from soil samples with a single-phase chloroform mixture, fractionation of extracted lipids using solid phase extraction columns, and methanolysis to produce fatty acid methyl esters, which are analyzed by capillary gas chromatography. Environment Measurement of H2S in Crude Oil and Crude Oil Headspace Using Multidimensional Gas Chromatography, Deans Switching and Sulfur-selective Detection Nicole E. Heshka1, Darcy B. Hager1 1CanmetENERGY, Natural Resources Canada A multidimensional gas chromatography method for the analysis of dissolved hydrogen sulfide in liquid crude oil samples is presented. A Deans switch is used to heart-cut light sulfur gases for separation on a secondary column and detection on a sulfur chemiluminescence detector.
