Adsorption of N-nitrosodiethylamine and N-nitrosodimethylamine on activated carbon: A pre-concentration procedure for gas chromatographic analysis

Aygun S., Uyanik A., Bati B.

MICROCHIMICA ACTA, vol.146, no.3-4, pp.279-283, 2004 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 146 Issue: 3-4
  • Publication Date: 2004
  • Doi Number: 10.1007/s00604-004-0225-3
  • Journal Name: MICROCHIMICA ACTA
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.279-283
  • Keywords: activated carbon, N-nitrosodimethylamine, N-nitrosodiethylamine, gas chromatography, THERMAL-ENERGY ANALYSIS, FLUORESCENCE DETECTION, NITROSAMINES, FOOD, NITROSODIBENZYLAMINE, HAMS
  • Ondokuz Mayıs University Affiliated: No

Abstract

In this study, a rapid pre-concentration procedure, which employs powdered activated carbon as a clean-up and pre-concentration material, is described for the gas chromatographic analysis of N-nitrosodiethylamine (NDEA) and N-nitrosodimethylamine (NDMA) in aqueous solutions. It was found that powdered activated carbon is suitable for the adsorption of volatile N-nitrosamine compounds from aqueous solutions. Adsorption efficiency with spiked beer samples (alcohol content approximate to5% v/v) was found to be 80.5% (NDMA) and 89.4% (NDEA) and recovery of extraction from activated carbon was calculated as 82.1% (NDMA) and 89.7% (NDEA), respectively. The effect of 100 mug mL(-1) of tannic acid on the adsorption was also studied, and no significant effect on the adsorption and extraction of volatile N-nitrosamine compounds was found.