Solid Phase Extraction Column Articles & Analysis: Older
5 articles found
Researchers at Ewon University in Japan have recently developed a new method to significantly shorten the preparation time by anion exchange solid phase extraction centrifugal columns. The findings were recently published in Chemical Communications. ...
This volume of News on Water highlights: New ISO Standard 17943 for Determination of VOCs in Water by HS-SPME and GC-MS Extraction of Organic Compounds from Water, Using ENVITM-18 DSK Solid Phase Extraction Disks Watercol columns Certified Reference Materials ready-to-use for water and waste ...
The European Union, however, regulates DON to levels as low as 0.2 ppm4,5. Current methods for extraction and purification of matrix samples for DON analysis vary. Procedures using liquid-liquid partitioning, solid phase extraction (SPE), immunoaffinity columns (IAC), and multifunctional cleanup ...
The selectivity of in-tube extraction by PTFE tubing vis-a-vis mini-column SPE has been evaluated for preconcentration and cleanup of PACs in their natural matrix, and has been found to effectively remove many polar analytes such as nitrogen containing aromatic heterocyclic compounds, anilines, phenols and certain organophosphorus pesticides. ...
A sample pretreatment consisted of removal of interfering substances using solid-phase extraction resin columns. The precision and accuracy of the method were tested using duplicate spiked urine samples. ...