METHOD DEVELOPMENT FOR ANALYSIS PENTACHLOROBENZENE AND HEXACHLOROBUTADIENE IN WASTEWATER BY GC/MS

Tóm tắt

This research presents the optimization of Pentachlorobenzene (PeCB) and Hexachlorobutadiene (HCBD) analysis in surface water. The study investigates the operating parameters of the GC/MS system and the clean-up, enrichment procedures based on liquid-liquid extraction using surrogate standard (Phenanthrene-D10). The calibration curve demonstrated a strong linear correlation (~0.994) within the concentration range of 25 - 600µg/L. The method detection limits were 0.008µg/L for PeCB and 0.004µg/L for HCBD. The recovery of the analytical procedure ranged from 85% to 114%. The method was applied to waste water samples showed good repeatability.