Fig. 8From: Disposable screen printed sensor for the electrochemical detection of methamphetamine in undiluted salivaDonor variation in response to MAMP in saliva from 10 donors. a 1st and 2nd peak heights and b 3rd peak height. The MAMP concentrations were 0, 0.1, 0.25 and 1 μg/mL. Each sample was tested with 6 sensors. Error bars are 1 SD. The overlayer treatment and SWV procedure are described in Fig. 6 Back to article page