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 Congress, Kyoto, 2004, A 04 A review on flue-cured tobacco cultivar development in South Africa - Lowveld Tobacco Growers Association SCHOLTZ A. Lowveld Tobacco Growers Association, Nelspruit, South Africa Flue-cured tobacco is grown in South Africa in four diverse areas ranging from fast growing high rainfall areas to a very slow ripening area with high heat intensity and low rainfall. All flue-cured tobacco is grown under irrigation. The main disease...
CORESTA Congress, Kyoto, 2004, APSSPT 02 The implementation of integrated pest management on flue-cured tobacco cultivation in South Africa LUTTIG M.; GELDENHUIJS D.M.; VAN JAARSVELD E.; SCHOLTZ A. Lowveld Tobacco Growers Association, Nelspruit, South Africa The Lowveld Tobacco Growers Association (LTGA) has developed an Integrated Pest Management (IPM) program as an alternative approach to chemical crop protection. The IPM program includes seedbed implementation as well as field applications. During...
CORESTA Meeting, Agronomy/Phytopathology, Cape Town, 2001, A 03 The influence of soil compaction and calcium on the uptake of phosphate for flue-cured tobacco DREYER J.G.; CLAASSENS A.S.; SCHOLTZ A. Lowveld Tobacco Growers Association, Nelspruit, South Africa The following problem have lead to this research project: The high application rate of phosphate by the tobacco farmer in the Lowveld and the low phosphorus content that where obtained in the leaves. Phosphates in the leaf correlate with leaf...