China Tobacco Guangdong Industrial Co. and China Tobacco Guangdong Industrial Corporation | Date: 2003-02-25
Cigarettes; cigarillos; cigars; tobacco; tobacco pipes; matches; cigarette filters; cigarette lighters not made of precious metal; cigarette lighters not for land vehicles.
China Tobacco Guangdong Industrial Co., China Tobacco Guangdong Industrial Corporation and Guangzhou No. 1 Cigarette Factory | Date: 2004-06-29
CTBAT INTERNATIONAL CO. Ltd, China Tobacco Guangdong Industrial Co. and China Tobacco Guangdong Industrial Corporation | Date: 2003-02-11
Cigarettes; cigarillos; cigars; tobacco; tobacco pipes; matches; cigarette lighters not of precious metal; cigarette filters.
Kong H.,China Tobacco Guangdong Industrial Corporation |
Chen C.,China Tobacco Guangdong Industrial Corporation |
Peng L.,Sun Yat Sen University |
Gan F.,Sun Yat Sen University
Journal of Chromatography A | Year: 2011
Stepwise key spectrum selection (SKSS) was introduced to resolve batch overlapping peaks from gas chromatography-mass spectrometry (GC-MS) analysis of ten batch tobacco flavoring samples in different storage times. Resolution was implemented on a software platform that embedded the SKSS method. The data from GC-MS analysis of the samples were saved and prepared in ASCII files and then were inputted into the software platform for visual inspections. The data segment with overlapping peaks was precut for subsequent analysis. Spectral background in the data was removed using a linear fitting of the baseline. Four components in the overlapping peaks were automatically detected by the SKSS method. The resolution of the concentration profiles and spectra of the four components was conducted by setting only one parameter, the negative area ratio, as 0.01. The fixed size moving window evolving factor analysis and evolving factor analysis were applied to validate the resolved concentration profiles. The resolved mass spectra were validated by the searched standard through library search at the pure component regions revealed by the resolved concentration profiles. The results showed that the SKSS method could be a simple but powerful tool in resolving batch chromatographic overlapping peaks. © 2011 Elsevier B.V. Source
Chen S.-L.,China Tobacco Guangdong Industrial Corporation |
Shen G.-L.,China Tobacco Guangdong Industrial Corporation |
Zhuo H.-L.,China Tobacco Guangdong Industrial Corporation |
Lu J.-H.,South China University of Technology |
And 2 more authors.
Modern Food Science and Technology | Year: 2013
Polysaccharides from different algae species (Laminaria japonica, Porphyra, Sargassum fusiform, Eucheuma) were obtained by citric acid extraction. The best algae specie was determined by analysis of the extraction yield of polysaccharides and cigarette quality. The results showed that polysaccharides from Laminaria japonica could obviously improve the cigarette quality, especially sample I and IV. By the sensory evaluation of the cigarette, the best dosage of polysaccharides was determined as 0.1%. Moreover, sample Iand IV had some promotion effect on the smoothness, irritation and finish of smoking, but showed little effect on miscellaneous gases. Source