RT Journal Article
T1 A Green Analytical Method Using Ultrasound in Sample Preparation for the Flow Injection Determination of Iron, Manganese, and Zinc in Soluble Solid Samples by Flame Atomic Absorption Spectrometry
A1 Yebra Biurrun, María del Carmen
K1 Spectrometry
K1 Iron
K1 Manganese
K1 Zinc
K1 Soluble solid samples
K1 Flow injection determination
AB A simple and rapid analytical method was developed for the determination of iron, manganese, and zinc in soluble solid samples. The method is based on continuous ultrasonic water dissolution of the sample (5–30 mg) at room temperature followed by flow injection flame atomic absorption spectrometric determination. A good precision of the whole procedure (1.2–4.6%) and a sample throughput of ca. 25 samples h−1 were obtained. The proposed green analytical method has been successfully applied for the determination of iron, manganese, and zinc in soluble solid food samples (soluble cocoa and soluble coffee) and pharmaceutical preparations (multivitamin tablets). The ranges of concentrations found were 21.4–25.61 μg g−1 for iron, 5.74–18.30 μg g−1 for manganese, and 33.27–57.90 μg g−1 for zinc in soluble solid food samples and 3.75–9.90 μg g−1 for iron, 0.47–5.05 μg g−1 for manganese, and 1.55–15.12 μg g−1 for zinc in multivitamin tablets. The accuracy of the proposed method was established by a comparison with the conventional wet acid digestion method using a paired 𝑡-test, indicating the absence of systematic errors
PB Hindawi
SN 2090-8865
YR 2012
FD 2012
LK http://hdl.handle.net/10347/21576
UL http://hdl.handle.net/10347/21576
LA eng
NO Yebra, M. C. (2012). A green analytical method using ultrasound in sample preparation for the flow injection determination of iron, manganese, and zinc in soluble solid samples by flame atomic absorption spectrometry. Journal of Analytical Methods in Chemistry, 2012, 298217
NO This work has been funded by Spain’s Ministry of Science and Innovation, within the framework of Project CTQ2009-12282
DS Minerva
RD 27 abr 2026