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...
Bull. Spec. CORESTA Congress, Yokohama, 1996, p. 120, A13 Effect of urea on yield and quality of flue-cured tobacco grown on sandy soil in Malaysia WAN AZMAN W.I.; AZIZ B.; SALBIAH H. Tobacco Research Division, Mardi, Kota Bharu, Kelantan, Malaysia. The effects of different sources of nitrogen are well documented for temperate regions but there is little comparable information for tropical conditions, where nitrification is likely to be more rapid and leaching more prevalent. The objective of...
CORESTA Meeting, Agronomy/Phytopathology, Oxford, 1995 Tobacco leaf handling using trolley barn DAHAM M.D.M. Tobacco Research Division, Mardi, Kota Bharu, Kelantan, Malaysia. An experiment was conducted to determine the advantage of leaf handling using trolley barn compared to conventional barn. A newly constructed trolley barn and a conventional barn which could load about 600 sticks (3,600 kg) of tobacco respectively...
Bull. Spec. CORESTA Congress, Harare 1994, p. 84, APOST 25 Effect of variety and plant population on the yield and quality of Malaysian flue-cured tobacco WAN ZAKI W.M.; ZULKIFLY M.Z.; AZMI M.R. Tobacco Research Division, Mardi, Kota Bharu, Kelantan, Malaysia. Field experiments were conducted during the 1991 and 1992 growing seasons to determine suitable varieties and the optimum plant population for flue-cured tobacco ( Nicotiana tabacum L.) grown on bris sandy soil under sprinkler irrigation system....