Fig. 2From: Injectiondesign: web service of plate design with optimized stratified block randomization for modern GC/LC-MS-based sample preparationVisualization of QC samples in different layouts. It can be clearly seen that the ability to separate the plate position from the injection sequence brought by the customized injection sequence greatly improves the efficiency of sample pre-processing placement. Different colors do indicate different types of QC samplesBack to article page