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SPME-OC Fiber Assembly, Polydimethylsiloxane/Divinylbenzene (PDMS/DVB)

df 75 μm(Coating thickness includes 65 μm coating + 10 μm OC (overcoating), needle size 23 ga, pkg of 3 ea, fiber L 1 cm

SPME-Overcoated Fiber Polydimethylsiloxane/Divinylbenzene (PDMS/DVB)


StableFlex fiber (Polydimethylsiloxane/Divinylbenzene (PDMS/DVB))
notched pink hub

Quality Level

needle size

23 ga


Polydimethylsiloxane/Divinylbenzene (PDMS/DVB) fiber overcoated with a layer of PDMS.


pkg of 3 ea


75 μm (Coating thickness includes 65 μm coating + 10 μm OC (overcoating))


solid phase microextraction (SPME): suitable

fiber L

1 cm

matrix active group

PDMS/DVB coating, Overcoated Polydimethylsiloxane/Divinylbenzene


food and beverages


for use with autosampler or manual (for direct immersion into matrix or headspace analysis of volatile or semi-volatile analytes (MW 50-300+))

General description

A new development in SPME fiber technology incorporates a protective overcoating on the fiber. This overcoating, which consists of polydimethylsiloxane (PDMS) serves as a barrier to protect the fiber from the matrix, which makes it more physically robust and less prone to chemical fouling. High background samples, such as many foods, pose a challenge to immersion SPME due to the presence of fats, sugars, pigments, and other macromolecules. These can stick to the SPME fiber and reduce its usable life and/or be transferred to the GC, where they may interfere with chromatographic analysis. Overcoating the fiber with PDMS reduces these problems.

Certificate of Analysis

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Certificate of Origin

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