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Target, Suspect and Non-Target Screening of Silylated Derivatives of Polar Compounds Based on Single Ion Monitoring GC-MS

1
School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4000, South Africa
2
Department of Chemistry, Mbarara University of Science and Technology, Mbarara 1410, Uganda
3
Department of Chemical Sciences, University of Johannesburg, Johannesburg 2028, South Africa
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2019, 16(20), 4022; https://doi.org/10.3390/ijerph16204022
Received: 26 June 2019 / Revised: 30 August 2019 / Accepted: 11 September 2019 / Published: 21 October 2019
There is growing interest in determining the unidentified peaks within a sample spectra besides the analytes of interest. Availability of reference standards and hyphenated instruments has been a key and limiting factor in the rapid determination of emerging pollutants in the environment. In this work, polar compounds were silylated and analyzed with gas chromatography mass spectrometry (GC-MS) to determine the abundant fragments within the single ion monitoring (SIM) mode and methodology. Detection limits and recoveries of the compounds were established in river water, wastewater, biosolid and sediment matrices. Then, specific types of polar compounds that are classified as emerging contaminants, pharmaceuticals and personal care products, in the environment were targeted in the Mgeni and Msunduzi Rivers. We also performed suspect and non-target analysis screening to identify several other polar compounds in these rivers. A total of 12 compounds were quantified out of approximately 50 detected emerging contaminants in the Mgeni and Msunduzi Rivers. This study is significant for Africa, where the studies of emerging contaminants are limited and not usually prioritized. View Full-Text
Keywords: suspect and non-target analysis; GC-MS; emerging pollutants; pharmaceutical and personal care products suspect and non-target analysis; GC-MS; emerging pollutants; pharmaceutical and personal care products
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Gumbi, B.P.; Moodley, B.; Birungi, G.; Ndungu, P.G. Target, Suspect and Non-Target Screening of Silylated Derivatives of Polar Compounds Based on Single Ion Monitoring GC-MS. Int. J. Environ. Res. Public Health 2019, 16, 4022.

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