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,...
TSRC, Tob. Sci. Res. Conf., 2009, 63, abstr. 10 TSNA method comparison using UHPLC-MS/MS MATHIS J.A.; PO YING YEUNG Global Laboratory Services, Wilson, NC, USA. Method development and optimization was performed for the quantification of tobacco specific nitrosoamines (TSNAs) in tobacco leaf. The objective was to shorten run time and compare the new method to the previous method. The evaluation of method...
Tob. Sci., 1972, 16-19, p. 75-77, ISSN.0082-4523 Greenhouse studies on insecticidal control of the dark-sided cutworm on tobacco seedlings CHENG H.H. Research Station, Canada Department of Agriculture, Delhi Ontario, Canada Five insecticides were applied to tobacco seedlings in the greenhouse for control of the dark-sided cutworm, Euxoa Messoria (Harris), in Ontario. Each insecticide significantly reduced cutworm damage compared to the untreated check. Dursban®...
Tob. Sci., 1972, 16-20, p. 78-81, ISSN.0082-4523 Comparison of sample preparation and mechanical measurement techniques for determination of the filling value of cut tobacco WALKER E.K.; VOISEY P.W. Research Branch, Canada Department of Agriculture, Ottawa, Ontario, Canada Force of compression (kg/g) for cut samples of flue-cured tobacco was obtained by the Delhi method, which utilizes research and quality control equipment for compression to a selected volume. Readings obtained at different compressed volumes were...
Tob. Sci., 1972, 16-54, p. 169-171, ISSN.0082-4523 The effect of deep fumigation on yield of flue-cured tobacco in Ontario GAYED S.K. Plant Pathologist, Canada Department of Agriculture Research Station, Delhi, Ontario Canada Chlorinated hydrocarbon fumigants and chloropicrin were applied in 1968 and 1969 in Fox loamy sand at 18 in. depth and at the traditional 6 in. depth. Yield of tobacco (Nicotiana tabacum L.) cultivar Hicks Broadleaf was about 15% higher in plots...