International Journal of Chemical Studies
  • Printed Journal
  • Indexed Journal
  • Refereed Journal
  • Peer Reviewed Journal
P-ISSN: 2349-8528, E-ISSN: 2321-4902   |   

Vol. 8, Issue 2 (2020)

Method standardization of selected PAHs, PCBs and surfactants in sewage water


Author(s): Siddhartha and VT Gajbhiye

Abstract: Water is the vital component of any living entity. Due to increasing urbanisation and industrialisation its quality is deteriorating. Sewage water includes waste generated from toilet, baths, showers, sinks, dishwashers, toilets and washing machines etc. untreated sewage water contains different organic as well as inorganic impurities. Among organic impurities PAH, PCB and surfactant are major concerns due to growing industrialisation. There is a need for simple and reliable methods for monitoring of these contaminants. Compounds selected for study were PAH-Naphthalene, Phenanthrene and Benzo(a)anthracene; PCBs-PCB 52 and PCB 44; surfactants - SDS and SDBS. Method was standardised for analysis of these selected compounds using GC-MS (PAH and PCB) and LC-MS-MS (surfactants). Retention time of PAHs Naphthalene, Phenanthrene, Pyrene and Benzo(a)anthracene was 7.72, 15.34, 18.54 and 21.54 min and PCBs code 52 and 44 was 16.87 and 17.24 min. The retention time of SDS and SDBS was 4.51 and 4.96 min. Limit of instrument detection for surfactants were 0.1 µg/mL while for limit of instrument detection for PAH and PCB were 0.001 µg/mL. Estimated value of LOQ for PAH and PCB were 0.0025 µg/mL while for surfactant it was 0.01 µg/mL. Recovery experiments were conducted using 2 different solvents ethyl acetate and Hexane: DCM (85:15) Highest recovery was observed in Hexane: DCM (85:15) for PAH and PCB. Average recovery for PAH and PCB were 72.8 and 75%. For surfactants, ethyl acetate gave the highest recovery (average 86.2%). Among PAHs, highest recovery was recorded for benzo(a)anthracene (73.6-84.8%) and among PCBs, PCB 52 recorded the highest recovery (68.8-73.6). Among the two surfactants, highest recovery was recorded for SDBS. Method was found to be selective and accurate and can be used for sewage water.

DOI: 10.22271/chemi.2020.v8.i2ad.9047

Pages: 1999-2003  |  522 Views  41 Downloads

download (4117KB)

International Journal of Chemical Studies International Journal of Chemical Studies
How to cite this article:
Siddhartha, VT Gajbhiye. Method standardization of selected PAHs, PCBs and surfactants in sewage water. Int J Chem Stud 2020;8(2):1999-2003. DOI: 10.22271/chemi.2020.v8.i2ad.9047
 

Call for book chapter
International Journal of Chemical Studies