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. Author manuscript; available in PMC: 2021 Feb 10.
Published in final edited form as: Mass Spectrom Rev. 2019 Sep 6;39(4):336–370. doi: 10.1002/mas.21601

Figure 7.

Figure 7.

(a) Plasma extraction card device for rapid extraction of plasma from blood for subsequent analysis by MS (Adapted and modified with permission from Kim et al., 2013, copyright 2013 American Chemical Society); (b) volumetric absorptive device for acquiring fixed micro-volumes of biofluid sample (Adapted and modified with permission from Denniff and Spooner, 2014 copyright 2014 American Chemical Society); and (c) capillary microsampling of blood in EDTA-coated tubes containing thixotropic gel for plasma separation (Reprinted with permission from Bowen et al., 2013, copyright 2013 Future Science Ltd.).