Development of a protocol for the rapid identification of solid materials using the principal component analysis (ACP) method: Case of phosphate fertilizers

In this work a new protocol allowing to identify solid materials (phosphate fertilizers as an example) easily, quickly, with low cost quickly and without any ambiguity by physicochemical methods, less expensive and easy to handle such as solubility, hydrogen potential (pH), electrical conductivity (v) and volumic mass using the method of principal component analysis (ACP). According to the ACP we find that the samples of each type of fertilizer form a group, namely TSP, MAP, DAP and NPK, the physicochemical analysis of each type of fertilizer has results different from the other types, which will give the possibility of identifying any sample. The results obtained from the solubility, pH, electrical conductivity (v) and volumic mass are 79.33 g/l, 3, 22.59 mS/cm and 1146.41 g/ml respectively for super phosphate (TSP), for monoammonium phosphate (MAP) are 34.5 g/l, 5.23, 43.35 mS /cm and 986.85 g/ml respectively, for diammonium phosphate (DAP) are 185.11 g/l, 7.41, 80.48 mS/cm and 948.29 g/ml respectively and for NPK (14-18-18) are 483.08 g/l, 6.7, 177.29 mS/ cm and 979.78 g/ml respectively. It is noted that for all the results are respect the conditions of repeatability, as well as the relative error is lower than 5 %. Copyright (c) 2022 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the 4thInternational Conference on Advanced Materials for Photonics, Sensing and Energy Conversion Energy Applications.