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. Author manuscript; available in PMC: 2018 Mar 14.
Published in final edited form as: Rapid Commun Mass Spectrom. 2016 Dec 15;30(23):2462–2470. doi: 10.1002/rcm.7739

Figure 1.

Figure 1

Photograph of a porous extraction paddle (PEP) having the following components from top to bottom: stirring motor; four off-sets (vertical white rods), black lid (for a 0.5 gallon jar, not shown); shaft; horizontal PTFE bar into which the shaft is press-fitted at the top of the bar, with a slot on the lower side that accommodates the cage, and with two vertical slots for two Tiewraps; porous nylon bag (6.0 × 6.5 cm) containing 2 g of MP-adsorbent that is sandwiched between two sheets of stainless steel mesh (each 8.0 × 8.7 cm), where the meshes are held together further with three additional Tiewraps