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Rose Scientific Publication, Melbourne, Australia Medbiotech Journal 2209-2528 01 01 2017 03 01 Pb and Cd Detection in some Pharmaceutical Products through Electrochemical Method 22 25 109461 10.22034/MBT.2017.60335 EN Pho Wat Department of Chemistry, Mahidol University, Bangkook, Thailand Journal Article 2016 12 16 Trace amounts of cadmium and lead were determined in zinc oxide and magnesium stearate by differential pulse anodic stripping voltammetry (DPASV) at hanging mercury drop electrode. Measurements were performed on zinc oxide samples without previous treatment whereas magnesium stearate samples were digested at 400ÂșC for 12 h. The mean recoveries were more than 95 %. Detection limits for cadmium and lead were 0.1 and 0.2 ppb, respectively, for deposition time of 90 s. The precision (RSD %, n = 10) for 5 ppb of the metals were below 6 % with the correlation coefficient of 0.997. Lead Cadmium Differential pulse anodic stripping voltammetry Traces analysis http://www.medbiotech.net/article_109461_b4c4326122389f834e2bb795c6641dda.pdf