TSRC, Tob. Sci. Res. Conf., 2022, 75, abstr. 00 (Symposium) Changes in the tobacco industry: 75 years of TSRC WILLIAMSON F. Global Laboratory Services, Wilson, NC, USA Abstract not available....
TSRC, Tob. Sci. Res. Conf., 2019, 73, abstr. 058 USP elemental impurities: limit test for metals in nicotine by ICP-MS LOTFI H.; ARROYO M. Global Laboratory Services, Wilson, NC, USA Nicotine included in e-cigarette formulations usually originates as a 90%+ solution, which is purified further prior to use. While the FDA oversees the tobacco industry, there is currently little regulation regarding the quality of raw materials or...
TSRC, Tob. Sci. Res. Conf., 2018, 72, abstr. 109 An improved method for the determination of sodium propionate in tobacco products WILLIAMSON F.; BAILEY J. Global Laboratory Services, Wilson, NC, USA Sodium propionate is a preservative with fungicidal properties that is often added to tobacco, primarily smokeless tobacco products, to prolong shelf life. Several regulatory agencies, including Health Canada and ANVISA, require the testing of sodium...
CORESTA Meeting, Agronomy/Phytopathology, 2015, Izmir, Turkey, AP 32 CPA residue levels in consecutive C48 cases of Oriental tobacco WESTBERG H.; SPENCER A. Global Laboratory Services, Wilson, NC, U.S.A. Crop protection agents (CPA) can be applied to tobacco at various stages of the production cycle and if CPA residues are present in the product, they can be topic of concern. After tobacco is processed it is normally packed into cases or bales for...
TSRC, Tob. Sci. Res. Conf., 2015, 69, abstr. 48 Method development and validation of selected metals in e-liquid samples BROWN J. Global Laboratory Services, Inc., Wilson, NC USA Over the past several years, the use of electronic cigarettes and devices has increased. Analysis of Harmful and Potentially Harmful Constituents is at a forefront in both the conventional and electronic cigarette industries. The analysis of various...
TSRC, Tob. Sci. Res. Conf., 2013, 67, abstr. 08 Comparison of auto analyzer methods: discrete vs continuous flow. THURSTON D. Global Laboratory Services, Inc., Wilson, NC, USA Chloride, Sugar, Alkaloids, and Nitrate results were compared using a discrete analyzer and a continuous flow auto analyzer. The new generation discrete analyzers are more automated than the continuous flow auto analyzers. In our initial assessment,...
Tobacco Science & Technology, 2011, 10, p. 78-80., ISSN.1002-0861 Biological control effects of Fusarium sp. against orobanche in tobacco field WU YUAN-HUA(1); NING FAN-HUA(1); LIU XIAO-LIN(1); ZHANG RUI(2); LAN YAN-FENG(2) 1. Shenyang Agricultural University, Shenyang 110866, P.R. China; 2. Chaoyang Branch of Liaoning Province Tobacco Corporation, Chaoyang 122000, Liaoning, P.R. China In order to reduce the damage by orobanche in tobacco field, a novel Fusarium sp. separated and bred in lab was tested to study its biological control effects against orobanche in tobacco field. The results showed that the treatment involving tobacco...
Tobacco Science & Technology, 2011, 11, p. 71-75., ISSN.1002-0861 Extraction of genome DNA and optimization of RAPD reaction system of Rhizoctonia solani FU YING; WU YUAN-HUA; MU LING-XIAO; ZHAO XIU-XIANG College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, P.R. China The genome DNAs of 16 strains of Rhizoctonia solani isolated from tobacco target spot were extracted by the improved CTAB method. The OD260/OD280 values of the obtained DNAs ranged from 1.76 to 1.89, the electrophoretic bands were clear and free of...
Tobacco Science & Technology, 2010, 9, p. 61-64., ISSN.1002-0861 Screening of tobacco mutant plant SN02 against PVYN from K326 and physiological and biochemical properties of the same YANG LI-YE; WU YUAN-HUA; ZHAO XIU-XIANG College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, P.R. China A naturally mutant plant highly resistant to Potato virus Y-vein necrosis strain (PVYN) has been screened from cv. K326 with virus sap rub inoculation and numbered as SN02. The contents of defensive enzymes in tobacco seedlings and chlorophyll a and...
Tobacco Science & Technology, 2009, 3, p. 49-52, ISSN.1002-0861 Spatial variation and distribution of available microelements in tobacco soil LOU YI-LAI; YAN LI; HAO CHANG-HONG Shenyang Agricultural University, College of Land and Environment, Shenyang, China The regional spatial variation and distribution of available microelements in tobacco growing soil at a county level were studied with GIS and geostatistics by taking Changtu County in Liaoning Province as an example. The results showed that the...