Figure 1From: Routes to improving the reliability of low level DNA analysis using real-time PCRBoxplot of concentration z score by Condition. Base: All observations for concentrations 0.5–1000. See Table 1 for preparative condition details. Briefly: Conditions 1–3 are standard plastic tubes and conditions 4–6 low-retention plastic. Pairs (1,4), (2,5) and 3,6) correspond to water, stabilising solution and carrier DNA solutions respectively.Back to article page