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Release of Plastic Additives and Microplastic Particles from Different Consumer Products into Water under Accelerated UV Weathering Conditions – by Dr. Lars Hildebrandt, Hereon
Photodegradation of plastic products is known to accelerate weathering and the resulting release of chemical additives and particles to the environment, however these processes are complex. Here, eight different plastic consumer products were leached in double-distilled water under exposure to strong ultraviolet (UV) light for ten days, and the chemical composition of the leachates was compared to their respective dark controls. The leachates and plastic particles were investigated with a wide battery of chemical-analytical tools to broadly characterize the underlying processes and possible hazards. These covered (a) metal(loid) analysis, (b) microplastic analysis, (c) analysis of >70 organic target analytes and (d) nontargeted screening of the extracts.
NanoPak-C All Carbon Solid Phase Extraction (SPE) of Organochlorine Pesticide from Trace Amounts of Environmental Samples
We present a reliable NanoPak-C All Carbon SPE method for extracting and detecting 15 OCPs from small quantities of soil (100 mg) and river water (200 µL) samples.
Therapeutic Proteins Analysis Using Size Exclusion Chromatography
This application note demonstrates the performance of BioCore SEC columns for determining aggregation and fragmentation associated with antibody-based biotherapeutics.
Microlute® CSi: Evaluation of a Novel Composite Silica Technology for Solid Phase Extraction
This application note demonstrates a novel composite technology that enhances reproducibility of solid phase extraction compared to a traditional loose packed format.
Draft Method 1634: Determination of 6PPD-Quinone in Aqueous Matrices Using SPE & LC/MS/MS
This app note outlines SPE extraction of water samples following EPA Draft Method 1634, comparing polymeric HLD SPE cartridges and polymeric HLB SPE cartridges.
Merck KGaA, Darmstadt, Germany: Greener Sampling of Terpenes in Cannabis
This application note demonstrates the use of Thermal Desorption as greener approach for sampling of terpenes in air for workplace exposure or terpene profiling