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, A 20 Genetic relationships among the newly discovered Nicotiana wuttkei and other Nicotiana species of section Suaveolentes using ISSR polymorphism DEL PIANO L.; SORRENTINO C.; ABET M.; DI MURO A.; BARBATO L.; SICIGNANO M.; CUCINIELLO A.; COZZOLINO E. Agricultural Research Council (C.R.A.), Scafati, Italy Nicotiana wuttkei i s the last discovered species of the Nicotiana genus and described for the first time in 1991 by Clarkson and Symon, as a member of section Suaveolentes . At present there is little and disagreeing information about morphology and...
CORESTA Meeting, Agronomy/Phytopathology, Santa Cruz do Sul, 2005, APOST 06 Evaluation of the effect of soil nitrate variability on nitrate distribution among leaf positions in "Burley" tobacco plants CONTILLO R.; GARGIULO N.R.; PUNZO G.; NAPOLITANO A. Agricultural Research Council (C.R.A.), Scafati, Italy Mineral nitrogen content in cultivated soils is highly variable in time and space. Dynamics of mineral nitrogen content in soils of temperate regions, during tobacco crop season, is characterized by the presence of fluctuations reaching often very...
CORESTA Meeting, Agronomy/Phytopathology, Santa Cruz do Sul, 2005, P 08 Preliminary study on the control of Rhizoctonia solani in tobacco float system using reduced rate of iprodione associated with iprodione resistant isolates of Gliocladium roseum LAHOZ E.; TARANTINO P.; CAIAZZO R.; CARELLA A.; PORRONE F. Agricultural Research Council (C.R.A.), Scafati, Italy Rhizoctonia solani Kühn (Teleomorph: Thanatephorus cucumeris (Frank) Donk) is a widespread soil-borne pathogen of tobacco, where it is known as the etiological agent of damping-off, sore shin and leaf target spot. Rhizoctonia solani has been reported...