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Fig. 9 | Chemistry Central Journal

Fig. 9

From: Disposable screen printed sensor for the electrochemical detection of methamphetamine in undiluted saliva

Fig. 9

Response to MAMP in saliva from two donors, in unfiltered saliva and saliva filtrate. a 1st and 2nd peak heights and b 3rd peak height. Saliva filtrate was collected using centrifugal filters with 3, 10, 30 or 100 kDa cut-offs. The MAMP concentrations were 0 or 1 μg/mL. Each sample was tested with 6 sensors. Error bars are 1 SD. The overlayer treatment and SWV procedure is described in Fig. 6, except the galvanostatic current was 700 nA

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