Dersleri yüzünden oldukça stresli bir ruh haline sikiş hikayeleri bürünüp özel matematik dersinden önce rahatlayabilmek için amatör pornolar kendisini yatak odasına kapatan genç adam telefonundan porno resimleri açtığı porno filmini keyifle seyir ederek yatağını mobil porno okşar ruh dinlendirici olduğunu iddia ettikleri özel sex resim bir masaj salonunda çalışan genç masör hem sağlık hem de huzur sikiş için gelip masaj yaptıracak olan kadını gördüğünde porn nutku tutulur tüm gün boyu seksi lezbiyenleri sikiş dikizleyerek onları en savunmasız anlarında fotoğraflayan azılı erkek lavaboya geçerek fotoğraflara bakıp koca yarağını keyifle okşamaya başlar


Stability and Concentrations of Humectants in Tobacco | OMICS International| Abstract
ISSN: 2155-9872

Journal of Analytical & Bioanalytical Techniques
Open Access

Like us on:

Our Group organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations
700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)
  • Research Article   
  • J Anal Bioanal Tech 2017, Vol 8(5): 380
  • DOI: 10.4172/2155-9872.1000380

Stability and Concentrations of Humectants in Tobacco

Eugène Jansen, Ramon Ramlal, Hans Cremers and Reinskje Talhout*
Centre of Health Protection, National Institute for Public Health and the Environment, , PO Box 1, 3720 BA Bilthoven, The Netherlands
*Corresponding Author : Reinskje Talhout, Centre of Health Protection, National Institute for Public Health and the Environment, PO Box 1, 3720 BA Bilthoven, The Netherlands, Tel: +31302742940, Email:

Received Date: Sep 19, 2017 / Accepted Date: Oct 14, 2017 / Published Date: Oct 19, 2017


Humectants, especially glycerol and propylene glycol, are tobacco additives that are used to facilitate several processes in the production of tobacco products and to maintain the moisture content. Humectants in tobacco are usually detected by gas chromatography with flame ionization detection after a pre-analytical conditioning procedure. During this conditioning step, significant decreases of especially propylene glycol levels were observed.

The goal of the present study is to find out the reason for this decrease, and to propose a method that minimizes this loss. Therefore, detailed studies were performed directed to this problem, which revealed that evaporation is the most likely source of this loss.

Based on our findings, we propose a method without a pre-analytical conditioning step. Using the present method, in 10 different brands of commercially available cigarettes it was checked whether the measured concentrations of the humectants correspond with the declared concentrations as supplied by the manufacturers. The analysis showed that the measured levels were in general much lower than the specified amounts, possibly due to evaporation during processing tobacco to cigarettes. Therefore, it was suggested that the manufacturers should also specify the final amounts of humectants in cigarettes after the manufacturing process.

Keywords: GC-FID; Humectants; Glycerol; Propylene glycol; Tobacco; Cigarettes

Citation: Jansen E, Ramlal R, Cremers H, Talhout R (2017) Stability and Concentrations of Humectants in Tobacco. J Anal Bioanal Tech 8: 380. Doi: 10.4172/2155-9872.1000380

Copyright: © 2017 Jansen E, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.