Automated Analysis of Pollutants in Wastewater Using Atmospheric Pressure Gas Chromatography-Tandem Quadrupole Mass Spectrometer With Robotic Autosampler and Solid Phase Micro Extraction.

ABSTRACT: The analysis of organic pollutants using gas chromatography coupled to mass spectrometer (GC-MS) with electron impact (EI) ionization and liquid-liquid or solid-phase extraction (LLE or SPE) often suffer from a limited selectivity and arduous sample preparation. Therefore, atmospheric pressure GC-MS/MS coupled with Dual Head-Robotic Tool Change (DH-RTC) Prep and Load (PAL), and solid-phase micro extraction (SPME) arrow was investigated for its suitability. Evaluation of the SPME arrow coated with divinylbenzene-polydimethylsiloxane (DVB-PDMS) using 2-nitrotoluene and nitrobenzene showed acceptable intra-day precision (%relative standard deviation [RSD]) of less than 10% and inter-day precision (n = 35) of 10.54% and 12.45% respectively. Initial trials were conducted to assess the suitabili

SUBMITTER: Shinde D 

PROVIDER: S-EPMC12645424 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature