Application Notes: Environmental

Microwave extraction becomes faster and easier with the new Milestone ETHOS X with its FastEX-24. This application note shows the use of Milestone technology for extraction of dioxins from environmental matrices, with emphasis on one of the most common challenge of this application: the carryover effect. The unique design of the FastEX-24 rotor with disposable glass vials allows easy and efficient dioxin extraction, and other organic pollutants, to be performed, avoiding any memory effect. The FastEX-24 simplifies the routine pollutants extraction process and provides superior productivity at lower costs.

This application note will present the data collected as part of the demonstration of disk solid phase extraction validation for US EPA method 625.1.

By switching to a Raptor C18 column, labs can process more samples per hour while still meeting fluorochemical method requirements.

Drinking water is an important part of environmental exposure, especially for small children. Countries around the world have put regulations in place to monitor drinking water quality for a wide range of hazardous compounds.

By switching to a Raptor C18 column, labs can process more samples per hour while still meeting fluorochemical method requirements.

Determination of PBDE congeners can be performed at high sensitivity with good accuracy using the GCMS-TQ8050.

Disinfection by-products (DBP) are an ever-present nuisance in the efforts to purify drinking water, wastewater, and municipal waters from various sources.

Initial precision was demonstrated by spiking four 1-L volumes with one Snip and Pour pre-measured standard, each (40 mg). The data for four replicates was collected for 47 mm Disks and 100 mm Disks. The average percent recovery is excellent and meets the criterion specified of 83–101% HEM recovery for both size disks. The standard deviation is better than the criterion specified of 11% for HEM.

Hamilton PRP-X100 and PRP-X110 are the perfect solution for anion analysis in water or environmental samples. The robust design and covalent surface modification of the packing material lead to a highly increased lifetime as compared to the competition. The production process is compliant to ISO 9001 ensuring an outstanding column-to-column and lot-to-lot reproducibility.

This automated SPE methodology is a solution that will reduce analyst labor, solvent usage, and turn-around-time while maintaining the high quality results required within today's laboratories.

The US EPA has implemented an exposure research program aimed at conducting drinking water research on methods as part of the Microbiological and Chemical Exposure Assessment. This research is aimed at evaluating the chemical pollutants and their role and levels in which there is an unacceptable risk to either humans or wildlife, as well as evaluating the methodologies currently being used to determine levels of chemical pollutants.

Diesel range organics or DRO is the cumulative analysis of extractable alkanes between the ranges C10 through C28 as measured on a flame ionization detector.