Environmental Resources – NexION 2000
Toxic cyanobacterial blooms were reported worldwide in various aquatic systems, including freshwater rivers, lakes, reservoirs, and eutrophied coastal marine habitats. Cyanobacterial blooms might be caused by a combination of multiple factors, including eutrophication, solar radiation, temperature, current patterns and other associated factors.
This work demonstrates a robust method using SP-ICP-MS technology to detect CeO2 NPs which were extracted from soil samples with tetrasodium pyrophosphate (TSPP). Over the past few decades, engineered nanoparticles (ENPs) have been increasingly used in many commercial products.
This work has demonstrated the ability of the NexION 2000 ICP-MS to analyze both natural and drinking water samples in Standard (i.e. non-cell) mode, in accordance with U.S. EPA Method 200.8. Accuracy has been demonstrated through the analysis of several reference materials and spike recoveries, with stability of at least nine hours.
Through the years, both industry and analytical instrumentation have advanced. With the development of new chemicals and processes, new pollutants may enter the environment. However, the capabilities of analytical instruments have also increased, allowing the measurement of ever lower levels of environmental contaminants, as well as new pollutants.
The continued application of engineered nanoparticles (ENPs) raises concerns for their introduction into natural water bodies via wastewater discharge, incorrect disposal of products containing ENPs, and leaching from outdoor applications.
Gold nanoparticles (AuNPs) are widely used in industrial and medical applications. They are known to form naturally during the weathering of Au-bearing mineral deposits, as well as the transformation of gold nuggets and particles. In freshwater systems, they bioaccumulate in aquatic organisms, as shown on test fish species such as zebrafish and guppy.
Single Particle (SP) ICP-MS is an analytical technique that has demonstrated tremendous potential for the measurement and characterization of metal-containing nanoparticles (NPs) in a wide range of sample types, including environmental. One of the most challenging matrices is seawater due to its high salt content, which causes severe difficulties when analyzed for NPs due to matrix suppression and cone clogging.
Concern about air pollution has been growing rapidly, with most of the focus on gaseous pollutants. Airborne particulates, especially small ones, are rapidly gaining attention due to their impact on human health, as smaller particles can be carried over long distances by wind and penetrate deep into the lungs, where contaminants can have direct interaction with lung tissue and the associated blood vessels.
Due to rising concerns over the carcinogenic properties of hexavalent chromium (Cr6+) in drinking water, many national and regional water standards are looking to lower the maximum allowable levels of total chromium and hexavalent chromium in potable waters.
Single particle ICP-MS (SP-ICP-MS) has become an essential tool for the analysis of nanoparticles (NPs) in various environmental matrices. It enables fast and accurate analysis of particle size, particle concentration, and ionic (dissolved) concentration in a single analysis, making it the technique of choice for tracking nanoparticle transformations (dissolution and aggregation) in natural systems.
Increased use of Engineer nanoparticles in consumer products and thus a possible effect in the environment has been growing. The Nanoecotoxicologists have been striving to analyze the toxic effect of these nanoparticles in aquatic ecosystems, it becomes more imperative to understand, the detailed understanding of uptake of the Ionic/ dissolved toxic nanomaterial by aquatic flora and fauna.