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...
CORESTA Meeting, Agronomy/Phytopathology, Santa Cruz do Sul, 2005, PPOST 08 Focus WP (clothianidin), new neonicotinoid insecticide for tobacco crop PERETTO A.J.; FERREIRA A.; MULLER A.L. Hokko do Brasil, Dept. of R&D, São Paulo - SP - Brazil. Clothianidin is a new insecticide belonging to neonicotinoid class, developed by Hokko do Brasil, as Focus WP, for tobacco and other crops. Focus WP is a systemic insecticide with very good translocation from root to the shoot through xylem. It can...
Tob. Sci., 1985, 29-11, p. 36-39, ISSN. 0082-4523 Nitrate reductase activity and its relationship to accumulation of reduced nitrogen and dry weight in tobacco PAPAKOSTA D.; GAGIANAC A.A.; SFICAS A.G. Agronomy Department, University of Thessaloniki, Greece Ten diverse tobacco genotypes were compared for nitrate reductase activity (NRA), reduced nitrogen accumulation, and dry weight. They differed significantly in all these parameters. The differences in reduced nitrogen accumulation were higher because...
Tob. Sci., 1980, 24-29, p. 97-101, ISSN. 0082-4523 Performance of Oriental and burley tobacco hybrids in greece SFlCAS A.G.; IOANNIDIS N.M. University of Thessaloniki, Greece; Tobacco Institute of Greece, Greece Male-sterile hybrids with sufficient field resistance to blue mold (Peronospora tabacina Adam) have been developed for Oriental and burley tobacco at the Tobacco Institute of Greece. Commercial cultivars with cytoplasmic male sterility were crossed...