Heavy Metals (Cr, Cd, Cu, Pb and Zn) Uptake by Cirsium arvense and Agropyron repens

2018 ◽  
Vol 69 (5) ◽  
pp. 1145-1148
Author(s):  
Simion Alda ◽  
Simona Nita ◽  
Lucian Dumitru Nita ◽  
Maria Rada ◽  
Despina Maria Bordean ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption Spectrophotometry ◽  
Cirsium Arvense ◽  
Perennial Weed ◽  
Flame Atomic Absorption ◽  
Spontaneous Vegetation ◽  
Main Component Analysis ◽  
Chemical Wastes ◽  
Main Component ◽  
Agropyron Repens

The purpose of this study was to monitor the heavy metal soil contamination and also to accomplish a comparative study on Cirsium arvense and Agropyron repens heavy metals uptake. The samples were collected from seven different sites situated at various distances from the polluted area Tarnaveni, Romania. Near the chemical wastes spontaneous vegetation is predominant. In this vegetation formed on fallow land, Agropyron repens (monocotyledonate perennial weed) and Cirsium arvense (dicotyledonate perennial weed) are dominant species. The metal (Cr, Cd, Cu, Pb and Zn) concentrations were determined by flame atomic absorption spectrophotometry. The data were statistically analyzed using Main Component Analysis and Generalized Linear Model. Based on our research, we can conclude that Cirsium arvense is accumulating more chromium compared to Agropyron repens and is recommended to be used as an indicator for chromium contamination. The present study highlights that animals consuming spontaneous vegetation grown in this area ingest significant amounts of chromium and zinc.

Co-precipitation of Ni, Cr, Mn, Pb and Zn in industrial wastewater and sediment samples with copper(II) cyclo-hexylmethyldithiocarbamate for their flame atomic absorption spectrometric determination

2012 ◽  
Vol 66 (1) ◽  
pp. 105-112 ◽  
Author(s):  
Ayodele Rotimi Ipeaiyeda ◽  
Adekunle Johnson Odola
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption ◽  
Industrial Wastewater ◽  
Atomic Absorption Spectrophotometry ◽  
Sample Volume ◽  
Sediment Samples ◽  
Flame Atomic Absorption ◽  
Precipitation Procedure ◽  
Co Precipitation

A co-precipitation technique for nickel(II), chromium(II), manganese(II), lead(II) and zinc(II) with the aid of copper(II) cyclo-hexylmethyldithiocarbamate was established. The influences of some analytical parameters such as pH, sample volume, amounts of cyclo-hexylmethyldithiocarbamate and copper(II) on the recovery of metal ions were investigated. The heavy metals in the precipitate were determined by flame atomic absorption spectrophotometry. The range of detection limits for the heavy metals was 0.003–0.005 mg/L. The atomic spectrometric technique with co-precipitation procedure was successfully applied for the determination of Ni, Cr, Mn, Pb and Zn in industrial wastewater and sediment samples from Ladipo stream in Lagos, Nigeria. The mean concentrations for these metals using co-precipitation procedure were not significantly different from corresponding concentrations obtained using spectrometric techniques without co-precipitation procedure.

Carduus nutans L and the Effect on the Heavy Metals and Microenvironment Biota

2017 ◽  
Vol 68 (7) ◽  
pp. 1524-1527
Author(s):  
Luminita Cojocariu ◽  
Despina Maria Bordean ◽  
Aurica Breica Borozan ◽  
Simona Nita ◽  
Adina Horablaga
Keyword(s):  
Heavy Metals ◽  
Zinc Concentration ◽  
Rhizosphere Soil ◽  
Atomic Absorption Spectrophotometry ◽  
Soil Samples ◽  
Total Chromium ◽  
Carduus Nutans ◽  
Flame Atomic Absorption ◽  
Number Of Bacteria ◽  
Iron And Manganese

The aim of the study was to identify the effect of Carduus nutans L on the heavy metals and microenvironment biota. Ten plants of Carduus nutans L were collected togheter with the rhizosphere soil and as reference the soil was collectued from an abandonated pasture where no vegetation was growing. The metal concentrations in the filtrate were determined by flame atomic absorption spectrophotometry and the total number of bacteria and actinomycetes from the average soil samples was established. Based on the mathematical models we managed to identify the effects of the heavy metals present in the Carduus nutans L rhizosphere soil samples on the development and presence of bacteria and actinomycetes colonies. We can state that iron and manganese influence the CFU of bacteria and actinomycetes and these in their turn have an impact on the zinc concentration in soil which will influence total chromium content and copper concentrations.

scholarly journals Quality of Commercial Coffees: Heavy Metal and Ash Contents

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Mariana Teixeira Pigozzi ◽  
Flávia Regina Passos ◽  
Fabrícia Queiroz Mendes
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption Spectrophotometry ◽  
Ash Content ◽  
Flame Atomic Absorption Spectrophotometry ◽  
Absorption Spectrophotometry ◽  
Flame Atomic Absorption ◽  
Brazilian Legislation ◽  
Cadmium Lead ◽  
Ground Coffee

This study aimed to quantify the ash content and to determine the concentration of heavy metals in roasted ground coffee and their respective infusions. The ash content was determined by incineration of the samples, and the quantification of heavy metals was performed by flame atomic absorption spectrophotometry for the following metals: cadmium, lead, copper, chromium, nickel, and zinc. According to the ash analysis, 15% of the roasted ground coffee samples were within the standards established by the legislation of the state of São Paulo, which has set an ash content of below 5%. In the roasted ground coffee samples, the Cd, Cu, Ni, and Zn contents did not exceed the limit established by Brazilian legislation. In several samples, both Pb and Cr were found in high levels, exceeding the limits established by Brazilian legislation. In the infusions of roasted ground coffee, the Cd, Cu, Cr, and Ni contents were below the detection limit of the equipment. Zn was found in all infusions and Pb was only detected in seven coffee infusion samples. Overall, the concentrations of heavy metals found in the commercially roasted ground coffee and their respective infusions are lower than the limits recommended by the official inspection agencies and, thus, are suitable for consumption.

scholarly journals Chemometric Analysis of Grapes

2015 ◽  
Vol 13 (1) ◽  
Author(s):  
Sasa S. Ranđelovic ◽  
Danijela A. Kostic ◽  
Biljana B. Arsic ◽  
Snezana S. Mitic ◽  
Ivana D. Rasic ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption ◽  
Soil Water ◽  
Atomic Absorption Spectrophotometry ◽  
Chemometric Analysis ◽  
Flame Atomic Absorption Spectrophotometry ◽  
The Road ◽  
Absorption Spectrophotometry ◽  
Flame Atomic Absorption

AbstractConcentrations of several heavy metals in soil, water and grape samples (variety Plovdina) collected at five locations at different distances from the road in Southeast Serbia were determined using the Flame Atomic Absorption Spectrophotometry. There was a decrease in analyzed samples with an increase in distance from the road. A complete absence of several examined, very harmful heavy metals (Mn, Ni, and Cd) in all analyzed samples was found. The analysis of grape samples proved the presence of iron, zinc and copper in concentration ranges 3.3-19.8, 0.31-0.63, and 3.4-13.6 μg g

scholarly journals Use of The Eggshells in Removing Heavy Metals from Waste Water - The Process Kinetics and Efficiency

2019 ◽  
Vol 26 (1) ◽  
pp. 165-174 ◽  
Author(s):  
Joanna Makuchowska-Fryc
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Flue Gas ◽  
Waste Product ◽  
Atomic Absorption Spectrophotometry ◽  
Main Element ◽  
Flame Atomic Absorption Spectrophotometry ◽  
Heavy Metal Cations ◽  
Flame Atomic Absorption ◽  
Kinetics Of

Abstract Studies of the efficiency of Ni, Cu and Cd cations removal from water solutions were carried out, with the use of clay limestone, hen eggshells from eggs for consumption and hen eggshells after hatching, which main element is calcium carbonate. Hen eggshells are a waste product, which can be used as a substitute of clay limestone in removing heavy metals from wet flue gas desulphurisation installation. Mixed solutions of Ni, Cu and Cd were used in the research, with the composition similar to the waste water from wet flue gas desulphurisation installation: Ni (0.009-0.053 mmol/dm3), Cu (0.008-0.057 mmol/dm3) and Cd (0.003-0.008 mmol/dm3). The metals were determined by flame atomic absorption spectrophotometry (F-AAS). Kinetics of the process was analysed and equilibrium parameters were estimated, taking into consideration changes of the solutions pH during the process duration. It was demonstrated that the dominating mechanism of cations removal is their binding in hydroxides and carbonates. The studies demonstrated comparable characteristics of hen eggshells versus clay limestone, in the context of their application in removal of heavy metal cations from solutions.

scholarly journals Concentrations of manganese and iron in some woody and herbs plants

2011 ◽  
pp. 39-49 ◽  
Author(s):  
Dragica Stankovic ◽  
Borivoj Krstic ◽  
Mirjana Sijacic-Nikolic ◽  
Milan Knezevic
Keyword(s):  
Heavy Metals ◽  
Natural Environment ◽  
Atomic Absorption Spectrophotometry ◽  
Multidisciplinary Research ◽  
Flame Atomic Absorption ◽  
Term Basis ◽  
Level Of Significance ◽  
The City

Heavy metals are the substances that indicate environmental pollution. The plants polluted with heavy metals may endanger natural environment and cause health problems in humans. In our multidisciplinary research of the concentrations of pollutants in forest ecosystems and natural environment in Belgrade, we examined the contents of heavy metals essential for plants but harmful in greater concentrations on a long-term basis. The fact that heavy metals manganese and iron are accumulated in plants to the greatest extent focused our work on determination of the level of concentrations of Mn and Fe in the vegetative parts of 8 plant types on three locations on the Avala Mountain and one location in the centre of the city of Belgrade. The analyses of heavy metals contents in plants were performed by the method of flame atomic absorption spectrophotometry. The examination of the existence of important differences between the average values was performed by implementation of Duncan?s test for the level of significance of 95%. The current contents of heavy metals in plants in the area of the protected natural resource Avala do not represent danger that would presently cause notable damage to forests but show the tendency of the increase of concentrations. Therefore, this issue should be constantly monitored.

Polymorphism of p-450 cytochrome detoxication genes in adolescents depending on the degree of contamination of the organism by heavy metals

2020 ◽  
Vol 99 (5) ◽  
pp. 478-482
Author(s):  
N. P. Setko ◽  
A. G. Setko ◽  
Ekaterina V. Bulycheva ◽  
A. V. Tyurin ◽  
E. Yu. Kalinina
Keyword(s):  
Heavy Metals ◽  
Environmental Factors ◽  
Heavy Metal Contamination ◽  
Atomic Absorption Spectrophotometry ◽  
The Body ◽  
Lead And Cadmium ◽  
Cyp2b6 Gene ◽  
Cytochrome P 450 ◽  
Gene Cyp1a1 ◽  
Group 1

Introduction. Changes in the body of children and adolescents aimed at adapting to environmental factors are determined by genetic polymorphism in xenobiotic biotransformation genes, determining the degree of susceptibility of the child’s body to pollutants, which is the basis of modern personalized preventive medicine when managing risks to the health of the child population under the influence of environmental factors. Material and methods. Trace elements, including heavy metals, lead and cadmium, were determined in the hair of 256 practically healthy teenagers by atomic absorption spectrophotometry. Depending on the level of content of the latter, two groups of adolescents were formed to determine six genes of the cytochrome P-450 family. Group 1 consisted of adolescents whose cadmium lead content exceeded the average Russian indices. The second group included adolescents whose heavy metals were above the level of average Russian standards. Results. Studies have shown that in adolescents of the 1st group, compared with the data of adolescents of the 2nd group, an increase in the number of carriers of two mutant alleles at the locus rs 1048943 (gene CYP1A1) is 3.08 times, rs 464621 (gene CYP1A1) is 1. 8 times; locus rs 2069522 (CYP1A2 gene) 3.63 times; locus rs 1799853 (CYP2C9 * 2 gene) 4.5 times; locus rs 1057910 (gene CYP2C9 * 3) 3.8 times and locus rs 2279343 (gene CYP2B6) 4.25 times. Moreover, carriers of two normal alleles in adolescents of the first group at the locus rs 1048943 (gene CYP1A1) were 5.14 times; locus rs 2279343 (CYP2B6 gene) was 6.5 fold less than among adolescents of the 2nd group; and at the locus rs 464621 (gene CYP1A1), rs 2069522 (gene CYP1A2), rs 1799853 (gene CYP2C9 * 2), rs 1057910 (gene CYP2C9 * 3) there were no carriers of normal homozygotes. Conclusion. Group 1 adolescents with heavy metal contamination of the body are carriers significantly in a greater number of pathological mutations in the genes of the cytochrome P-450 detoxification system in comparison with data from group 2 adolescents.

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