on-line solid phase extraction

Solid phase extraction (SPE) is usually performed with disks or cartridges.  Horizon Technology provides two types of extractors to help in automating the process for better precision.  This allows each laboratory to choose the system that is most appropriate for their samples and workload. 

Thermo Fisher Scientific has developed a high-performance liquid chromatography (HPLC) method for a fast and sensitive determination of paraquat and diquat in tap and environmental water samples.