Novel stir bar sorptive extraction methods for environmental and biomedical analysis

Development and validation of stir bar sorptive extraction of polar phenols in water followed by HPLC separation in poly(vinylpyrrolididone‐divinylbenzene) monolith

“…The basic principles of SBSE are identical to SPME using PDMS-coated fibers. Since the amount of PDMS coated on the stir bar is 25 -125 lL, 50 -250 times higher than that on an SPME fiber, this format results in a significantly increased recovery and extraction capacity [12]. Nowadays, SBSE has been widely applied to enrichment and sensitive analysis of hazardous compounds such as pesticides in wine [13,14], volatile phenols [8,9], and fungicides [15], and in environmental and biomedical analysis [16 -18].…”

Current Developments and Future Trends in Solid-phase Microextraction Techniques for Pharmaceutical and Biomedical Analyses

“…Stir-bar sorptive extraction (SBSE) [41][42][43] ( Fig. 1B) is a new sample-preparation technique that overcomes the limited capacity of SPME fibers.…”

Possibilities of utilization of modern sample preparation methods for gas chromatographic analysis of beverages and especially beer. Part II. - Stir Bar Sorptive Extraction.

“…Na rozdíl od SPME vlákna pokrytého polymerem, se SBSE skládá ze tří hlavních částí: 1) magnetické míchací tyčinky, která je nutná k přenosu rotačního momentu magnetického míchadla do kapalného vzorku, 2) tenkého skleněného pouzdra, ve kterém je umístěna magnetická míchací tyčinka a 3) vrstvy polydimethylsiloxanového (PDMS) sorbentu, do kterého se analyty extrahují. Skleněný obal míchací tyčinky je důležitý k tomu, aby zabránil rozkladu PDMS vrstvy, která by jinak mohla být katalyzována kovy magnetické míchací tyčinky [7]. Míchací tyčinka je obvykle dlouhá 10-20 mm pokrytá 25-125 μl (0,3-1,0 mm tloušťka vrstvy) PDMS.…”

“…In contrast of the SPME fibre coated by polymer, SBSE has three essential parts: 1) a magnetic stirring rod, which is necessary for transferring the rotation movement of a magnetic stirring plate to the liquid sample, 2) a thin glass jacket that covers the magnetic stirring rod and 3) a layer of polydimethylsiloxane (PDMS) sorbent into which the analytes are extracted. The glass envelope is essential to prevent the decomposition of the PDMS layer, which would otherwise be catalysed by the metals in the magnetic stirring rod [7]. Stir bar is usually of 10-20 mm length and coated with 25-125 μl (0.3-1.0 mm thickness of layer) of PDMS.…”