A Sensitive Single Particle-ICP-MS Method for CeO₂ Nanoparticles Analysis in Soil during Aging Process.

ABSTRACT: The increasing prevalence of products that incorporate engineered nanoparticles (ENPs) has prompted efforts to investigate the potential release, environmental fate, and exposure of the ENPs. However, the investigation of cerium dioxide nanoparticles (CeO₂ NPs) in soil has remained limited, owing to the analytical challenge from the soil's complex nature. In this study, this challenge was overcome by applying a novel single particle-inductively coupled plasma-mass spectrometry (SP-ICP-MS) methodology to detect CeO₂ NPs extracted from soil, utilizing tetrasodium pyrophosphate (TSPP) aqueous solution as an extractant. This method is highly sensitive for determining CeO₂ NPs in soil, with detection limits of size and concentration of 15 nm and 194 NPs mL^-

SUBMITTER: Liu W 

PROVIDER: S-EPMC7931143 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature