Figure 2From: Microarray analysis of human leucocyte subsets: the advantages of positive selection and rapid purificationPositive selection is associated with increased cell purity. Proportion of cell types (CD4, CD8 and CD14) in PBMC as assessed by flow cytometry prior to separation (yellow boxes). Purity of these cells assessed by flow cytometry following positive (red boxes) or negative (green boxes) selection.Back to article page