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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Simple and Robust GFAAS Methods for Determination of As, Cd, and Pb in Hemp Products Using Different Sample Preparation Strategies

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Ribeiro Menezes, Iohanna M. N. [1] ; Nascimento, Patricia de A. [1] ; Gonzalez, Mario H. [2] ; Oliveira, Andrea [1]
Total Authors: 4
[1] Fed Univ Parana UFPR, Dept Chem, BR-81531980 Curitiba, Parana - Brazil
[2] Sao Paulo State Univ UNESP, Dept Chem & Environm Sci, BR-15054000 Sao Jose Do Rio Preto - Brazil
Total Affiliations: 2
Document type: Journal article
Source: FOOD ANALYTICAL METHODS; v. 14, n. 5 JAN 2021.
Web of Science Citations: 0

Hemp is one of the most complete plants for industrial and consumer purposes. In the food industry, the main hemp product is the seed oil, which contains a wide spectrum of compounds such as amino acids and fatty acids that are essential for human health. Given its growing consumption, systematic studies were undertaken for the quantification of toxic elements (As, Cd, and Pb) in hemp products, such as seeds (shelled and peeled), oil, protein, and butter. Factorial designs were used to optimize the sample preparation and instrumental conditions, resulting in robust analytical methods. For the toxicity assessment, the samples could be previously treated in either acid or alkaline medium, achieving limits of quantification of 0.6 mu g g(-1) (As), 0.04 mu g g(-1) (Cd) and 0.4 mu g g(-1) (Pb), and satisfactory values of accuracy (recoveries of 87-107%) and precision (relative standard deviation < 7%). The lead contents of hemp seeds were of concern (1.07-1.38 mu g g(-1)), since they were above the established limits (0.2 mu g g(-1)), while the cadmium levels could be considered safe. The As contents of the samples were all lower than the limit of quantification of the proposed method. (AU)

FAPESP's process: 15/08873-9 - Assessment of arsenic's bioaccumulation and associated risks from fish consumption in Brazil
Grantee:Mario Henrique Gonzalez
Support type: Regular Research Grants
FAPESP's process: 17/18531-3 - Green analytical chemistry: from sample preparation to trace element determinations by inductively coupled plasma mass spectrometry (ICP-MS)
Grantee:Mario Henrique Gonzalez
Support type: Regular Research Grants
FAPESP's process: 19/22113-8 - Natural Deep Eutectic Solvents: synthesis, characterization, and application for the determination of As, Cd, Cr, Hg, Se, and V in environmental samples using ICP-MS
Grantee:Mario Henrique Gonzalez
Support type: Regular Research Grants