sample="quota" bates="515089782" isource="rjr" decade="1990" class="ui" date="19931027" CAMELEX.DOC Page 1 AUTHORS: Mary S. Uhrig DATE: October 27, 1993 Larry Stafford Chandra K Banerjee DEPARTMENT: Technical Support NOTEBOOK PAGES: DIVISION: Analytic Chemistry NO.OF PAGES: ARD 1993, NO. PREVIOUS REPORTS: PROGRAM: Exploratory Products IDENTIFICATION AND SEMI-QUANTIFICATION OF MAINSTEAM VAPOR PHASE COMPONENETS FROM CAMEL LIGHTS 85 AND CAMEL LIGHTS 85 WITH A THREE COMPONENT EXPERIMENTAL FILTER OBJECTIVE: To identify, and quantify the components from the mainstream vapor phase (MSVP) of CAMEL Lights 85 and CAMEL Lights 85 equipped with an experimental filter. SUMMARY: The MSVP components from CAMEL Lights and CAMEL Lights containing a three component experimental filter were identifired and quantified using dynamic headspace gas chromatography/mass spectrometry (GC/MS) analysis. The MSVP was trapped using three different trapping methods. The results from all three experiments show that the MSVP components are reduced by approximately 50% for CAMEL Lights equipped with the experimental filter. KEYWORDS: Mainstream vapor phase, purge and trap,dynamic headspace, gas chromatorgraphy, HV filter. INTRODUCTION: Main stream vapor phase components can be collected in a number of ways. A Tenax trap or an impinger containing chilled water placed after or before the Cambridge pad have been successfully used to trap low molecular weight volatile components. Initial work on collecting the MSVP for this type of product was performed by William.M. Coleman and is foind in ARD:WMC93005,1. These results showed that a charcoal filter significantly alters the composition of MSVP for CAMEL Lights cigarettes. Three differn trapping methods for MSVP were employed in this work. The collection of MSVP was accomplished by trapping in chilled water in the impinger placed after of before the Cambridge pad, and on Tenax traps placed after the Cambridge pad. The components trapped were analyzed by dynamic headspace GC/MS. The cigarettes analyzed were CAMEL Lights 85 and CAMEL Lights 85 tobacco rod equipped with a three component experimental filter. The three componenets are a 7-mm gathered web carbon filter, a 7-mm plastic filter with a flow restricting aperture placed in the center and a 13-mm low efficiency cellulose acetate filter (10/3500) forming the mouth piece. The cigarette is air diluted approximately 50% at 12mm from the mouth end. The control CAMEL Lights has the standard 3.3/3900 dpf cellulose acetate and is air-diluted to approximately 18% at 16 mm. Average deliveries fromt hese cigarettes using FTC smoking conditions are as follows: METHODS AND MATERIALS: Trapping Methods: The cigarettes are smoked under FTC smoking conditions on a 6 port smoking machine. An impinger containing water and cooled by and ice bath is placed either before or after the Cambridge pad. An internal standard of cyclohexanol in 10 ml of water. The Tenax trap is placed after the cambridge pad and 1.54 µg of d6-Benzene gas used as a standard is purged onto the Tenax trap before smoking. The smoking procedure was one cigarette smoked per impinger or Tenax trap and each sample was smoked six times. Dynamic Headspace: A Tecmar LCS 2000 Dynamic Head Space multiport system was used to analyze MAVP trapped in water. One ml of the water from the impinger is transferred to U-shaped spurge tubes and heated to 70ºC while being purged with Helium for 20 minutes. This sample is trapped onto a Tenax trap which is then purged for 5 minutes onto a GC column. Tenax traps: A Perkin Elmer (ATD 400) Automatic Thermal Desorption System was used to analyze MSVP trapped on to Tenax traps.