classificação de água de coco processada e natural por meio de hca, pca e teores de íons metálicos determinados por icp oes classification of processed and natural coconut water using hca, pca and metallic ion levels obtained by inductively coupled plasma optical emission spectrometry (icp oes)
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classificação de água de coco processada e natural por meio de hca, pca e teores de íons metálicos determinados por icp oes classification of processed and natural coconut water using hca, pca and metallic ion levels obtained by inductively coupled plasma optical emission spectrometry (icp oes)

;Rafael Arromba de Sousa;Waldomiro Borges Neto;Ronei Jesus Poppi;Nivaldo Baccan;Solange Cadore
greece and rome 2006 Vol. 29 pp. 654-656
267
sousa2006qumicaclassificao

Abstract

Inductively Coupled Plasma Optical Emission Spectrometry was used to determine Ca, Mg, Mn, Fe, Zn and Cu in samples of processed and natural coconut water. The sample preparation consisted in a filtration step followed by a dilution. The analysis was made employing optimized instrumental parameters and the results were evaluated using methods of Pattern Recognition. The data showed common concentration values for the analytes present in processed and natural samples. Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA) indicated that the samples of different kinds were statistically different when the concentrations of all the analytes were considered simultaneously.

Keywords

chemometrics coconut water icp oeschemistry

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DOI:
10.1590/S0100-40422006000400005
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