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, Suzhou, 1999, AP25 Characteristics of F1 hybrids of Oriental tobaccos regarding physiology, biochemistry, product quality and resistance to black shank CHEN Xueping; YANG Jianquin; JIANG Tong; HUANG Jiangru; SUN Deguo; YU Xinzhen Hefei Institute of Economics and Technology, STMA, Hefei, Anhui, China The experiments were conducted in 1996-1998 at Hefei Institute of Economics and Technology and Oriental Experiment Station of Zhejiang Province. Eight F1 hybrids and four parental varieties of Oriental tobacco were investigated for the...
CORESTA Meeting, Agronomy/Phytopathology, Suzhou, 1999, AP01 The progress of tobacco research in China FANG Yucheng Hefei Institute of Economics and Technology, STMA, Hefei, Anhui, China 1. Study on the national regionalization of tobacco production (1982-1985)The whole country was divided into 7 districts and 27 subdistricts. 4 types of production regions were defined: most suitable, suitable, less suitable and unsuitable. Different...
CORESTA Meeting, Agronomy/Phytopathology, Suzhou, 1999, AP02 The perspectives of China tobacco production: Impediments and recommendations ZHU Xianling Hefei Institute of Economics and Technology, STMA, Hefei, Anhui, China In the past twenty years, China tobacco production has made considerable progress. Not only did the total output and per unit yield increase, but also the leaf quality improved. The average yield is 1500 kilograms per hectare and upper grade leaf is...