Premium
Simultaneous Quantitative Determination of Manganese, Iron, Copper and Zinc by Atomic Absorption Spectroscopy in Tropical Cereals, Fruit and Legume Materials
Author(s) -
BENZO Z.,
SCHORIN H.,
VELOSA M.
Publication year - 1986
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1986.tb10875.x
Subject(s) - manganese , zinc , atomic absorption spectroscopy , copper , chemistry , nitric acid , legume , hydrogen peroxide , agronomy , inorganic chemistry , biochemistry , biology , physics , organic chemistry , quantum mechanics
A method for the simultaneous quantitative determination of manganese, iron, copper and zinc in rice, corn, cassava, black beans, lettuce, mango, papaya, pineapple, medlar, bananas and melon by atomic absorption spectroscopy was developed by using a mixture of concentrated nitric acid‐sulphuric acid (2:1 v/v) and by adding hydrogen peroxide for sample digestion. The precision varied between 1–10%. The accuracy was ascertained by analyzing five biological standard reference materials from the National Bureau of Standards (NBS, Washington, ‐DC. 20234 USA) and no significant difference could be established between the certified values and those present in this study. Additionally, the results obtained by the presented method were compared with those obtained by X‐ray fluorescence spectrometry in a different laboratory.