Part No: AN003-HORIssued year: 2009File size: 0.86mbFile type: pdf
This study shows that the SPE-DEX® 4790 Automated Extractor system can process water samples containing suspended particulate matter, up to 1000 mg, for the analysis of PAH’s. As PAH’s are found in both the dissolved and particulate phase of the water sample, it is important to be able to handle “whole” water samples such that the particulate matter in the water sample is retained and extracted with the SPE disk. This filtration method ensures that the PAH’s found in the dissolved phase, and those adsorbed onto the particulate matter are properly
Part No: AN110-HORIssued year: 2016File size: 2.15mbFile type: pdf
This work demonstrates the performance of automated solid phase extraction (SPE) for the extraction of PAHs from surface water sampled from a nearby pond containing some particulate. An automated system (Biotage® Horizon 4790) with Atlantic® DVB disks, following the requirements of method EN 16691, was used.
Part No: AN109-HORIssued year: 2016File size: 1.5mbFile type: pdf
This application note describes the automated solid phase extraction (SPE) and GC/MS analysis of whole water samples according to EN16691 for PAHs.
Method EN 16691 is a recently developed method that uses solid phase extraction to isolate organic compounds from 1 L of water using a divinylbenzene (DVB) solid phase extraction disk.
Part No: AN120-HORIssued year: 2017File size: 1.44mbFile type: pdf
Polycyclic aromatic hydrocarbons (PAHs) can be found in a number of water types, such as drinking water, surface water, ground water and wastewater. There are serval types of extraction techniques that can be implemented to remove them from water for measurement including liquid-liquid extraction (LLE), continuous liquid-liquid extraction (CLLE) and solid phase extraction (SPE). With LLE and CLLE there is little selectivity within the methods for difficult matrices or other compound interferences.
Part No: AN072-HORIssued year: 2012File size: 0.88mbFile type: pdf
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental contaminants, naturally occurring in coal, crude oil, gasoline, and their byproducts (e.g. coal tar or creosote). In addition, PAHs are formed in the incomplete combustion processes of all organic materials, such as wood or fossil fuels. Consequently, the EU water framework directive (WFD) lists in its annex X the whole group of PAHs as priority hazardous substances.
Part No: AN038-HORIssued year: 2009File size: 2.13mbFile type: pdf
This application note demontrates that the Biotage® fully automated extraction, drying and concentration systems used with the Atlantic™ HLB disk are capable of extracting PAH compounds from sea water.
Typical extraction times using the Biotage® Horizon 4790 range from 20 to 25 minutes while drying and concentration on the DryVap® with the DryDisk® took approximately 35 minutes.
Part No: AN065-HORIssued year: 2010File size: 2.07mbFile type: pdf
Although not frequently a problem, recent incidents at sea have led to large amounts of crude oil being released and dispersed throughout the Gulf of Mexico. Originally presumed to be Louisiana Sweet Crude, sample testing later revealed a harsher form of crude containing a high amount of asphaltenes was actually being released. The differences are substantial, as Louisiana Sweet degrades more readily in nature than crude oil containing asphaltenes.
Part No: AN016-HORIssued year: 2009File size: 1.28mbFile type: pdf
This application note uses the Biotage® Horizon 4790 automated extraction system with a DVB SPE disk to extract an aqueous sample for PAH compounds analysis. The extract is dried using the Horizon Technology DryDisk®.
Part No: PPS428Issued year: 2016File size: 0.85mbFile type: pdf
This technical note describes the use of layered SPE columns in applications where multiple suites of analytes with a broad polarity range are to be extracted simultaneously from a single water sample, such as organochlorine, triazine and organophosphate pesticides, or endocrine disrupters.