Molecules, Vol. 25, Pages 3114: Method Validation and Investigation of the Levels of Pharmaceuticals and Personal Care Products in Sludge of Wastewater Treatment Plants and Soils of Irrigated Golf Course

In this study, the variation of the sonication temperature, type of organic solvent for extraction, and types of cartridge were used to optimize the extraction procedure. A good repeatability (within day) and reproducibility (between days) with a relative standard deviation (RSD) that was equal or less than 13% for all the PPCPs were achieved with the developed extraction procedures for the irrigated soil and sewage sludge samples. The limits of detection (LODs) of the tested compounds varied from 0.1 ng·g−1 (aspirin) to 1.4 ng·g−1 (doxycycline) and from 0.1 ng·g−1 (codiene) to 1.7 ng·g−1 (doxycycline) for soils and sewage sludge samples, respectively. The method was successfully applied to the sludge of wastewater treatment plants and soils of an irrigated golf course. Among the tested emerging pollutants, paracetamol showed the highest concentration value of 98.9 ng·g−1 in the sludge, and for the irrigated soil (0 to 10 cm), the concentration ranged from 1.16 ng·g−1 (aspirin) to 8.57 ng·g−1 (ibuprofen).
Source: Molecules - Category: Chemistry Authors: Tags: Article Source Type: research