There is growing concern that VOC emissions from materials used indoors in buildings should be monitored to ensure that building occupants are not exposed to potentially harmful chemicals. Monitoring can be absolute (determining, for example, emission rates in micrograms per square meter-hour),

Plastics have become a major source of pollution due to their ubiquitous use in a wide array of products. Most plastics are not readily biodegradable and can wind up as litter or are simply disposed of in landfi lls. It is estimated that only 9% of the plastic in the US is recycled [1]. Plastics discarded into the environment can be ingested by animals, break down into smaller particles which can also be ingested, or leach other compounds into the environment which can potentially cause damage. Leachates can include plasticizers, fl ame retardants, blowing agents, UV stabilizers, dyes and a host of other compounds added to the polymers.

Bisphenol A (BPA) is a widely produced chemical used as a precursor in the formation of plastics (polycarbonate) and coatings for food and beverage containers

Micro- and nanoplastics pollution in oceans, lakes and other water sources is an on-going and well-documented issue. Sources and entry ways of these plastics include grey water, surface runoff, and litter. Grey water is defi ned as the relatively clean wastewater from sources such as baths, sinks, washing machines and dishwashers. The very small plastic particle size precludes effi cient removal during the wastewater treatment process. As a result, fi sh and other aquatic life ingest the plastics, which introduces them into the food chain and causes possible adverse effects.

The global golf ball market was estimated to be over one billion dollars in 2017. It is estimated that each year, over 300 million golf balls are lost in the United States, alone. Golf balls are not recyclable or biodegradable, so if not recovered, the balls are left in waterways and woodlands.
Stir Bar Sorptive Extraction (SBSE) and Solvent Assisted Stir Bar Sorptive Extraction (SA-SBSE) are firmly established techniques for extraction of compounds from various matrices, with the latter technique offering significant increased capacity for concentration of hydrophilic/polar compounds. In this application note this difference is explored by applying both SBSE and SA-SBSE to a berry-flavored yogurt followed by GC-MS after liquid desorption of the stir bars.
In the work presented here, the perfluorinated carbonic and sulfonic acids listed in the EU Drinking Water Directive (EU 2020/2184) were determined by an automated method based on solid phase extraction with weak anion exchange sorbent combined with LCMS/MS.
This paper describes an automated pyrolysis system for gas chromatography (GC) based on a filament type pyrolyzer combined with a commercially available thermal ...

The US Consumer Product Safety Commission’s (CPSC) Test Method CPSC-CH-C1001-09.3 [1], is used by testing laboratories for the determination of phthalate content in children’s toys and child care articles covered by the standard set forth in the Consumer Product Safety Improvement Act Section 108. The CPSC determined that an appropriate combination of methods of extraction and analysis is sufficient to determine the concentration of the six regulated phthalates in most consumer products.

In metabolomics studies, large sample sets have to be analyzed to allow statistical differentiation of sample types. Obviously, repeatability of the whole analytical workflow, including sample preparation, sample introduction, separation and detection, is hereby of the utmost importance. In this respect, automation of the sample preparation is very useful in order to reduce the analytical variability.