Autosampler Guys would like to highlight a new extraction technology called SPME Arrow launched in 2016 by CTC Analytics AG. We spent some time testing this device and were able to find compounds not previously detected, not least because it displays much higher responses when compared to traditional SPME—one of its key advantages. The purpose of this page is to gather together publications and posters describing applications for this new device. If you are aware of a publication, please share it with us, so we can add it to the library.
SPME Arrow, like SPME, is a solvent-free extraction device. Its major advantages over its predecessor are that its sorption surface area is six times larger and that its phase volume is 20 times larger overall, which prevents the sorption of analytes from being maxed out as in traditional SPME. We call these limitations “competition effects.” They are commonly found whenever the analytes of interest are suppressed by a dominant matrix. Good examples of applications in which these effects arise are analyzing flavors in alcoholic beverages (or other matrices); testing for drugs of abuse and doping in serum, blood or urine; as well as for environmental pollutants such as PAH, pesticides and herbicides in water.
SPME Arrow has an outer diameter of 1.1 or 1.5mm, resulting in larger sorption phase surfaces and volumes compared to traditional SPME. The arrow-shaped tip, hence called SPME Arrow, allows smooth penetration into a vial and injector septa. The arrow design feature protects the sorptive material and minimizes the loss of analyte due to physical stress during transfer process.
Preview: PAL SPME Arrow (2298 KB)