Forum pracy nad projektem wskrzeszenia The Forge

[02fdd68lv]

,[link widoczny dla zalogowanych]
Conference 2000 Abstracts CORESTA


Pre-VOC concentrator / GO-O side-stream smoke smell technical analysis of technical characteristics, that is headspace sampling, cold solvent trap, trap or adsorbent tube solid phase micro extraction (SPME), has been applied to tobacco smoke volatile organic compounds in (voc) analysis. However, due to the complex processing operations, the system is not stability, low sensitivity and reproducibility is poor, so. These technologies not enough to accurately analyze gas VOC. To solve these problems, we introduced a VOC concentrator, gas chromatography and smell test spectrometer. We evaluated a new instrument that sets the performance analysis of tobacco smoke VOC, and applies it to study the past did not analyze the characteristics of sidestream smoke odor analysis. The gas sampling bag of the pre-concentrator VOC samples injected by gas chromatography, in the pre-concentrator is concentrated in the VOC gas samples, dehydration and low concentration. To separate the respective shunt device through the introduction of VOC mass spectrometer (for the qualitative and quantitative analysis) and olfactory air intake (for gas ignorant of the description) in the. Based on sample dilution ratio (aroma dilution analysis: ADA) evaluated the odor intensity. In order to assess the entire side of the stream of each VOC contribution to smell smoke, we prepared two kinds of samples of recombinant sidestream smoke smell: ① samples contain all the elution from the smell out of air intake VOC; ② containing the active ingredient and does not contain an odor a VOC. We use a second election forced choice method (a test method is omitted) to compare samples of these two kinds of odor intensity and quality. The results show that the system shows the excellent performance of VOC Analysis: Quantitative analysis of good reproducibility, cv value is less than 5% (n = 5), the detection limit was lOng / cigarettes: The Gc-O method we get 30 kinds of features, including side-stream smoke odor smell illustrated. ADA results show that the characteristics of 7 is sufficient to describe the smell the smell of sidestream smoke. In addition. Omit the test method suggested that three kinds of odor characteristics (metal gas,[link widoczny dla zalogowanych], potatoes and nuts gas gas) is to describe the smell of sidestream smoke the most important feature. l8 Kinetics of pyrolysis of cellulose: I. Competitive non-isothermal kinetics of two years ago, held in Brighton CORESTA of Congress presented a paper entitled \Since then, this study has been expanded to include 3 other gases: hydroxy acetaldehyde,[link widoczny dla zalogowanych], CO and CO kinetics data. Has been to produce the amount of tar condensate changes with the heating rate data, and developed a solution temperature curve with the competitive index of non-isothermal reaction rate equation. Therefore, this study has significantly expanded the scope: This paper describes the expansion of research in 2 parts: Part 1 Determination of the rate constant, Part 2 for the mechanism of inference. Formaldehyde, CO and the production of hydroxy acetaldehyde volume increases with the heating rate increases. This article will respond with a description of the competitive dynamics of formaldehyde and CO produced. Need the first 3-hydroxy acetaldehyde rate constants, that reaction involves intermediate, CO formation increased with the increase of heating rate slightly less alkaline, however, because of this reduction is too small, it is difficult to distinguish, therefore, will be the generation of CO dynamics as from the heating rate. Although the kinetic data have not been tar,[link widoczny dla zalogowanych], but according to the amount of tar produced changes in assessment rate constants is possible. Describes the rate law. The comparison shows that the rate constant, competitive reaction mechanism involving a reaction: high-temperature reaction of formaldehyde, acetaldehyde and hydroxyl CO, tar and low-temperature reaction of CO!. l9 from the tobacco smoke of ammonium into ammonia purpose is to study the mechanism of the ammonia from the tobacco smoke into the mechanism of ammonia in the transition to other smoke components (especially nicotine) effect. A study of 54 kinds of commodities cigarettes EU study shows that tobacco smoke ammonia with the increase in the amount of ammonium increased slightly. However, if there is quantitative by the ammonium in tobacco smoke into the case of ammonia, which increases the amount of change is far less than predicted. In order to study changes in the mechanism of nitrogen gas and ammonia hydrate and carbon compounds Derivatives Desk potential role of a pilot scheme designed: the different amounts of diammonium phosphate (DAP) and sucrose was added to a standard American blended cigarettes formula, and cigarette smoke measured this formula the following parameters: ammonia, compounds, pyrazine,[link widoczny dla zalogowanych], nicotine, nicotine vapor and \Calculated from these data the parameters and tobacco sucrose content in the relationship between DAP and the statistical model, and use these models to discuss the transfer of ammonia in flue gas and its possible mechanism of transfer of nicotine. (Liu Full Quoted lnfomlationBulletinofCORESTACongress2000 ,177-187 ,197-203, may be Sin Fu stems) 45
More articles related to topics：


wholesale mac cosmetics 1997-1999 Annual rolled ci

http://www.wholesale-maccosmetics.org 1 - (2 - pyr

[link widoczny dla zalogowanych]

[link widoczny dla zalogowanych]

[link widoczny dla zalogowanych]