Study of the Presence of Lead in a Series of Foods of Plant Origin

2018 ◽  
Vol 69 (5) ◽  
pp. 1223-1225
Author(s):  
Mihai Apostu ◽  
Gladiola Tantaru ◽  
Madalina Vieriu ◽  
Nela Bibire ◽  
Alina Diana Panainte
Keyword(s):  
High Resolution ◽  
Atomic Absorption ◽  
Wheat Flour ◽  
Quantitative Method ◽  
Food Products ◽  
Soil Types ◽  
Plant Origin ◽  
Corn Flour ◽  
Continuum Source ◽  
Commission Regulation

The objective of the study was to evaluate the presence of lead in several food products of plant origin. An atomic absorption spectroscopic quantitative method for the analysis of Pb+2 was developed and validated using an Analytik Jena ContrAA 300 apparatus equipped with an air-acetylene flame and a high-resolution continuum source. The analyzed food products were wheat, wheat flour, onions, corn, corn flour, carrots, beans, potatoes and cabbage grown in three geographical areas, on three soil types. The results obtained were in line with the limits laid down in Commission Regulation (EC) No 1881/2006 - Consolidated acts as far as the maximum admissible level of Pb+2 in foods.

scholarly journals MULTI-ELEMENT DETERMINATION OF CALCIUM, POTASSIUM AND MAGNESIUM IN MEDICINAL PLANT BY HIGH-RESOLUTION CONTINUUM SOURCE ATOMIC ABSORPTION SPECTROMETRY

2017 ◽  
Vol 37 (1) ◽  
pp. 45
Author(s):  
Tiago Varão Silva ◽  
Jardes Figuerêdo Rêgo ◽  
Mercedes De Moraes ◽  
Alberto José Cavalheiro ◽  
José Anchieta Gomes Neto ◽  
...  
Keyword(s):  
High Resolution ◽  
Medicinal Plants ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Absorption Spectrometry ◽  
Element Determination ◽  
Continuum Source ◽  
Flame Atomic Absorption ◽  
Secondary Line

A simple and rugged method to determine Ca, K and Mg in a single aliquot of medicinal plants by high-resolution continuum source flame atomic absorption spectrometry is proposed. Secondary lines for Ca (239.856 nm) and K (404.414 nm), and the alternate line measured at wing of the secondary line for Mg at 202.588 nm allowed calibration within the 20 – 500 mg L-1 Ca and K, and 1.0 – 80 mg L-1 Mg. Twenty samples and three plant certified materials were analyzed. Results were in agreement at a 95% confidence level with reference values. Limits of detection were 2.4 mg L-1 Ca, 1.9 mg L-1 K and 0.3 mg L-1 Mg. The RSD (n=12) were ≤ 5.1% and recoveries were between 83 and 108% for all analytes.

High-resolution continuum-source electrothermal atomic absorption spectrometer for simultaneous multi-element determination in the spectral range of 190–780 nm

2019 ◽  
Vol 34 (5) ◽  
pp. 1005-1010 ◽  
Author(s):  
V. A. Labusov ◽  
S. S. Boldova ◽  
D. O. Selunin ◽  
Z. V. Semenov ◽  
P. V. Vashchenko ◽  
...  
Keyword(s):  
High Resolution ◽  
Atomic Absorption ◽  
Light Source ◽  
Spectral Range ◽  
Atomic Absorption Spectrometer ◽  
Electrothermal Atomizer ◽  
Element Determination ◽  
Continuum Source ◽  
Absorption Spectrometer

We have built a prototype atomic absorption spectrometer with an electrothermal atomizer and continuum light source for simultaneous multi-element determination.

Sign in / Sign up

Export Citation Format

Share Document