Influence of Digestion Procedure and Residual Carbon on Manganese, Copper, and Zinc Determination in Herbal Matrices by Atomic Absorption Spectrometry

Adamczyk-Szabela, Dorota; Anielak, Piotr; Wolf, Wojciech M.

doi:10.1155/2017/6947376

Cited by 8 publications

(5 citation statements)

References 46 publications

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“…Results presented in this paper clearly indicate that there is no singly efficient digestion method which by default can be applied to sewage sludge. The yield of extraction depends on the metal properties and the method used [23,26,33]. Higher metal recoveries were obtained using the microwave digestion methods as compared to the sample decomposition in the open system.…”

Section: Resultsmentioning

confidence: 99%

“…During digestion in an open system, loss of analyte due to its volatility and contamination of the sample should be taken into account [34]. As shown in the studies of the plant samples digestion [33], the critical parameter is the content of organic matter. In the case of decomposition of sewage sludge, organic substances are the main components of the matrix.…”

Section: Resultsmentioning

confidence: 99%

“…The sample preparation is a crucial step which ensures the quality of the whole analytical process. Several procedures as used for the decomposition of sewage sludge and other samples with substantial organic matrix contributions (thermal or microwave destruction with different types of reagents) are reported in the scientific literature [30][31][32][33][34][35][36][37]. The authors of those works addressed the issue of environmental samples complexity with a special attention paid to organic carbon and silica.…”

Section: Introductionmentioning

confidence: 99%

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Digestion Procedure and Determination of Heavy Metals in Sewage Sludge—An Analytical Problem

2019

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Huge amounts of sewage sludge produced globally is a substantial environmental threat and require rational handling. Application in agriculture is an economical and relatively simple method of sludge management, however, it is associated with restrictions regarding metals content. According to EU regulations, the total amounts of Cd, Cu, Cr, Pb, Ni, and Zn have to be analyzed by the AAS technique requiring effective destruction of the organic matrix. Currently used methods of sewage sludge digestion may be biased when applied without optimization. The aim of the presented work was to evaluate the efficiency of the organic substances destruction in either raw or stabilized sludge. Three mineralization procedures were evaluated, namely: (A)—drying and microwave digestion; (B)—ignition and microwave digestion; (C)—drying and conventional digestion. For matrix destruction, a mixture of concentrated HNO3 and HCl (3:1 v/v) was used. Metals were determined by flame atomic absorption spectrometry (FAAS). No limits of metal concentration were overdrawn. Generally, the method (B) was the most effective. Results obtained for Cu, Cd, and Zn after digestion by method (A) and (B) were comparable. Methods (B) and (C) yield complete decomposition of the matrix. As result, the precision of measurement substantially increases.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Digestion Procedure and Determination of Heavy Metals in Sewage Sludge—An Analytical Problem

2019

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“…All samples were prepared for selenium analysis by wet ashing procedure [18]. Sample preparation by wet ashing was categorized according to methods of digestion.…”

Section: Methodsmentioning

confidence: 99%

Quantitative determination of selenium in the most common food items sold in Egypt

Moatkhef

Ismail

Agamy

et al. 2020

J. Egypt. Public. Health. Assoc.

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Particular interest in selenium (Se) was generated as a result of clinical studies showing that balanced Se dietary system is very important for many physiological processes. There is no recent information available on the Se content in Egyptian foods. The present study was conducted to measure Se content in different food groups. A cross-sectional study was designed; a total of 87 food items were randomly purchased from the main markets and hypermarkets in Alexandria governorate, then digested by wet ashing procedure and finally analyzed using Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). The highest mean Se value was obtained in protein-rich food followed by nuts and sweetened products (6.8, 6.2, and 5.89 μg/g respectively) shrimps had the highest value among all studied samples (6.8 μg/g), while the lowest one was in soft cheese (0.0036 μg/g). Selenium content in food groups is strongly correlated with food matrix and composition of food items, soil composition, and fortification process.

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“…The content of Cu, Mn, Fe and Zn in plant material (roots and shoots) was determined by the ContrAA 300 atomic absorption spectrometer (Analytik Jena, Jena, Germany) operating in the flame (air-acetylene) mode and equipped with the high resolution continuum radiation source. The carefully weighted plant samples (0.6 g-shoots and 0.3 g-roots) were digested in the mixture of concentrated HNO 3 and HCl (6:1, v/v) using the Anton Paar Multiwave 3000 closed system instrument 47 . Results are summarized in Fig.…”

Section: Metals Determination In Plant Materialmentioning

confidence: 99%

Additive interactions of nanoparticulate ZnO with copper, manganese and iron in Pisum sativum L., a hydroponic study

Skiba

Michlewska

Pietrzak

et al. 2020

Sci Rep

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Widespread occurrence of ZnO nanoparticles in environment follows the growing number of applications either in technology or agriculture. The impact of five forms of nanoparticulate ZnO on copper, manganese and iron uptake by Pisum sativum L. cultivated in Hoagland solutions was investigated. Plants were collected after twelve days of zinc administration. Effect of bulk ZnO has also been studied. Initial zinc concentration was 100 mg L −1. Nanoparticles were characterized by the transmission electron Microscopy, Dynamic Light Scattering and Zeta potential measurements. Metal contents were analyzed using the Atomic Absorption Spectrometry with flame atomization for samples digested in a microwave closed system. Analysis of variance indicated that zinc species at either molecular or nanoscale levels altered Cu, Mn and Fe uptake and their further transport in pea plants. In particular, significant reduction of Mn and Fe combined with the Cu increase was observed. Additive interactions originated by nanoparticles affect the heavy metals uptake and indicate pollutants migration pathways in plants. Unfortunately, regulations for the plant cultivation were formulated when anthropogenic nanoparticles were not in common use. they underestimate complexity of metals interactions in either plant or habitat. Our results indicate that these additive interactions cannot be neglected and deserve further investigations. Green pea (Pisum sativum L.) is one of the most extensively cultivated grain legumes worldwide. Plants are well adapted to diverse soil zones in either cool or mild climatic regions 1. Their seeds are rich in proteins, carbohydrates, dietary fibers, vitamins as well as minerals and are commonly used as vegetable or important protein source. The latter is of particular relevance when animal feed is concerned 2. The global production of pea is steadily growing as indicated by the projected Compound Annual Growth Rate (CAGR) of 5.9% and has approached 20 million tonnes in 2018 3. Pea genetics was thoroughly studied and in combination with better plant breeding methods has led to variety of improved plant species 4. Nowadays, pea is an important non model plant widely used in applied system biology studies 5. The pea genome has not been completely determined as yet. Nevertheless, it is being frequently applied as a model plant with the almost complete transcript coverage 6. The impact of nanoparticles (NPs) on plants physiology and their nutritional quality is usually assessed using two leading methodologies as presented by Jośko and Oleszczuk 7. Initially, the long-term growth in soils supplemented with representative concentrations of investigated nanoparticles was applied 8,9. Nowadays, the soilless plant cultivation is gaining increasing popularity 10. Hydroponic techniques promote plant growth in nutrient solutions. Their usage by far exceeds the laboratory scale and they have found numerous applications in commercial crop production 11. Several advantages of hydroponic cultures are highly appreciated, i.e. the s...

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Influence of Digestion Procedure and Residual Carbon on Manganese, Copper, and Zinc Determination in Herbal Matrices by Atomic Absorption Spectrometry

Cited by 8 publications

References 46 publications

Digestion Procedure and Determination of Heavy Metals in Sewage Sludge—An Analytical Problem

Digestion Procedure and Determination of Heavy Metals in Sewage Sludge—An Analytical Problem

Quantitative determination of selenium in the most common food items sold in Egypt

Additive interactions of nanoparticulate ZnO with copper, manganese and iron in Pisum sativum L., a hydroponic study

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