Determination of total magnesium in biological samples using electrothermal atomic absorption spectrometry |
| |
| Affiliation: | 1. Department of Chemistry, University of Warsaw, Warsaw, Poland;2. Institute of Chemistry, University of Warsaw, Branch in Bialystok, Bialystok, Poland;1. Department of Physics and Astronomy, University of Nigeria, Nsukka, Nigeria;2. UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, South Africa;3. Nanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, 1 Old Faure Road, Somerset West 7129, PO Box 722, Somerset West, South Africa;4. SensorLab, Department of Chemistry, University of the Western Cape, Bellville, 7535 Cape Town, South Africa;6. Water Pollution Monitoring and Remediation Initiatives Research Group, School of Chemical and Minerals Engineering, North-West University, Private Bag X1290, Potchefstroom 2520, South Africa;1. School of Public Health, Shahroud University of Medical Sciences, Shahroud, Iran;2. Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran;3. School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran;1. Department of Food Sciences and Technology, Faculty of Environmental Agricultural Sciences, Suez Canal University, Elarish, North Sinai, Egypt;2. Department of Clinical Nutrition, Faculty of Applied Medical Sciences, Jizan University, KSA Jizan 45142, Saudi Arabia;3. Department of Oceanography, Kunsan National University, Jeonbuk 673-701, South Korea;1. College of Science and Laboratory of Materials Design and Quantum Simulation, Changchun University, Changchun, 130022, China;2. Key Laboratory of Automobile Materials of MOE and School of Materials Science and Engineering, Jilin University, Changchun, 130012, China |
| |
| Abstract: | Magnesium content is an important diagnostic parameter in medicine. It is recognized that its determination in one compartment is not sufficient for reliable information about the magnesium status in the body. In addition to the common procedures of magnesium determination in blood by flame atomic absorption spectrometry, the procedure of electrothermal atomization has also been developed and applied to the analysis of blood fractions, mononuclear cells and isolated nuclei of liver cells.Electrothermal atomization is preferred in cases where the sample size is limited and the magnesium content low. The total errors are in the order of 3–4%. Various techniques of sample pretreatment have been tested and direct dilution with 0.05 mol l−1 nitric acid was optimal when the samples were not mineralized. The calibration graph based on standards containing albumin was found to give the best results, as the form of magnesium in the samples may influence the ashing and atomization processes. Good agreement was obtained for determination of magnesium in standard serum. The results are compared with those obtained by the standard flame atomization technique. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
