Presentation Title

Nicotine contamination of the soil from discarded cigarette butts- Analysis using a modified QuEChERS procedure followed by GC-MS determination

Faculty Mentor

Errol V Mathias

Start Date

23-11-2019 8:00 AM

End Date

23-11-2019 8:45 AM

Location

221

Session

poster 1

Type of Presentation

Poster

Subject Area

physical_mathematical_sciences

Abstract

This study aims at analyzing the degree of nicotine contamination in the soil through discarded cigarette butts. East Los Angeles College is a smoke-free campus; however, several locations on campus display the presence of cigarette butts. Nicotine was extracted from the soil by a modified QuEChERS technique. The choice of the QuEChERS (Quick Easy Cheap Effective Rugged Safe) technique in the extraction of pesticides and alkaloids from soil is gaining importance over the traditional SPE (Solid Phase Extraction) techniques. The soil samples were treated with various adsorbents from previously published protocols and methanol was used as the primary solvent. Methanol sterilizes the soil and prevents the breakdown of nicotine into its metabolites. Following extraction, the determination and quantitation of nicotine was carried out using Gas Chromatography- Mass Spectrometry with quinoline as an internal standard. Selective Ion Monitoring (SIM) of the mass spectrum peaks from quinoline and nicotine were used to detect and quantify the nicotine present in the soil. The results indicate the existence of soil contamination by nicotine on various parts of the campus. In addition to matrix effects and percentage recovery, limits of detection and quantitation of our methods are further discussed.

This document is currently not available here.

Share

COinS
 
Nov 23rd, 8:00 AM Nov 23rd, 8:45 AM

Nicotine contamination of the soil from discarded cigarette butts- Analysis using a modified QuEChERS procedure followed by GC-MS determination

221

This study aims at analyzing the degree of nicotine contamination in the soil through discarded cigarette butts. East Los Angeles College is a smoke-free campus; however, several locations on campus display the presence of cigarette butts. Nicotine was extracted from the soil by a modified QuEChERS technique. The choice of the QuEChERS (Quick Easy Cheap Effective Rugged Safe) technique in the extraction of pesticides and alkaloids from soil is gaining importance over the traditional SPE (Solid Phase Extraction) techniques. The soil samples were treated with various adsorbents from previously published protocols and methanol was used as the primary solvent. Methanol sterilizes the soil and prevents the breakdown of nicotine into its metabolites. Following extraction, the determination and quantitation of nicotine was carried out using Gas Chromatography- Mass Spectrometry with quinoline as an internal standard. Selective Ion Monitoring (SIM) of the mass spectrum peaks from quinoline and nicotine were used to detect and quantify the nicotine present in the soil. The results indicate the existence of soil contamination by nicotine on various parts of the campus. In addition to matrix effects and percentage recovery, limits of detection and quantitation of our methods are further discussed.