Figure 2From: A coherent mathematical characterization of isotope trace extraction, isotopic envelope extraction, and LC-MS correspondenceEach box illustrates an example candidate local neighborhood Ï’ defined by an algorithm-specific m/z and RT window. Blue centroids indicate the centroids pertaining to the isotope trace, while red centroids have been rejected due to differences in abundance, m/z, and/or RT compared to other centroids in Ï’.Back to article page