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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Example of peak shape from the analysis of brand #17 using LDTD-APCI-HRMS detecting (a) MMPB for total microcystins analysis, and (b) anatoxin-a (ANA-a). The analytes are represented by the integrated peaks with corresponding retention times (RT) and area (AA).