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Cadmium absorption
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In this paper, the temperature-dependent extended X-ray absorption fine structure (EXAFS) of distorted crystalline cadmium has been analyzed using an efficient calculation-model. The analysis procedure is based on evaluating the influence of temperature on the phase shift and amplitude reduction of EXAFS oscillation that is expressed in terms of the EXAFS Debye-Waller factor.
12p
vispiderman
15-06-2023
5
2
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Cadmium pollution now is one of the main environmental problems. Growing of plants hyper accumulators of Cd can help to remediate the polluted soils. Species Linum usitatissimum L. is one of such crops. Cadmium concentrations were analysed in the ashes of adult plants by x-ray fluorescence analyzer BRA – 18. The presence of pollutants did not influence flax germination ability, but tested genotypes showed different degrees of cadmium resistance.
7p
lyhuyenthu
31-01-2023
7
2
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The study aimed to evaluate the concentration of heavy metals in the soil of industrial zones in An Giang province. Soil samples were collected at Binh Hoa and Binh Long industrial parks with 20 monitoring positions in the topsoil. The heavy metals including Copper (Cu), Zinc (Zn), Lead (Pb), Cadmium (Cd) and Arsenic (As) were analyzed by atomic absorption spectroscopy.
10p
viwmotors
13-12-2022
3
2
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This paper investigated the presence of cadmium and lead in the tissue samples of three marine shrimps taken from three major landing sites in the area. The samples were processed using nitric acid digestion and the heavy metal concentrations were analyzed using Atomic Absorption Spectroscopy (AAS).
8p
vimegwhitman
10-06-2022
8
1
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The application of non-targeted NMR methods combined with ICP-AES quantification provided an efficient strategy for detecting residual heavy metals within plant tissues and soil. Importantly, non-targeted metabolomic analysis helped to reveal the relationships between metabolites distribution in hemp tissues and the sequestered metals.
10p
thebadguys
15-01-2022
5
0
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The metal complexes are retained on resin at pH 6.0 and eluted with 1.0 mol L −1 HCl in acetone in both methods. After the optimum conditions were determined, the methods were applied to seawater, stream water, rice, lentil, tea, tobacco, bulgur, chickpea, wheat, red pepper, black pepper, peppermint, and dried eggplant samples in order to determine the levels of copper and cadmium.
13p
langthannam
29-12-2021
8
0
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A magnetic Fe3O4 @ montmorillonite composite was prepared and used for the separation of lead and cadmium from aqueous solutions. For this purpose, magnetite (Fe3O4) was generated by co-precipitation of FeSO4 and FeCl3 onto montmorillonite. The effects of various experimental parameters such as pH of the solution, amount of sorbent, initial concentration of analytes, and contact time on the sorption efficiencies of lead and cadmium ions were investigated and optimized by applying a batch technique.
5p
langthannam
29-12-2021
12
0
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Cloud point extraction (CPE), which is the most popular coacervate-based extraction method, was utilized for the separation and preconcentration of trace amounts of cadmium, lead, and nickel. Quinalizarin was used as complexing agent and Triton X-114 was used as surfactant. After extraction, analyte ions were determined by flame atomic absorption spectrometry. The detection limits (3 s) of 1.8 µg L −1 for Cd(II), 3.2 µg L −1 for Pb(II), and 2.8 µg L −1 for Ni(II) were obtained using 50 mL of solutions.
9p
langthannam
29-12-2021
13
0
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A new system was developed for the preconcentration and determination of cadmium levels in water following online cloud-point extraction and analysis by flame atomic absorption spectrometry. The method uses cloud-point extraction of the complex formed between Cd(II) ions and the reagent 2-(5-bromo-2’-thiazolylazo)- p-cresol (Br-TAC) using Triton X-114 as a surfactant. The main steps of the procedure, extraction, filtration, and detection were conducted online.
9p
langthannam
29-12-2021
7
0
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A new sensitive and accurate solid-phase extraction method for preconcentration of trace amounts of cadmium and lead in various environmental samples prior to flame atomic absorption spectrometry determination has been developed. The proposed method is based on the utilization of multiwalled carbon nanotubes in combination with 5-benzyl-4-[-chlororbenzylidene amine]-4H-1,2,4-triazole-3-thiol (BCBATT) as a solid-phase sorbent with the aid of ultrasonication. The effect of the preconcentration parameters was investigated.
14p
tudichquannguyet
29-11-2021
5
1
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Two newly synthesized Schiff bases DMCA and DMBA were used for selective detection of Cd2+ over a wide range of other metal ions in acetonitrile (ACN)/Tris-HCl buffer (10 mM, pH 7.32, v/v 2:1). The sensors can detect Cd2+ ions by colour changes from colourless to orange for DMBA and yellow to reddish for DMCA. Response of the probes towards metal ions was investigated by using UV-vis spectroscopy. The complex stoichiometry between the sensors, DMBA and DMCA, and Cd 2+ was found to be 2:1 and the binding constants were calculated to be 2.65×10 12M−2 and 4.95×10 12M−2 , respectively.
14p
tudichquannguyet
29-11-2021
12
1
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In this paper, the protective role of melatonin in counteracting metal-induced free radical generation was highlighted. Using the HPLC-FLD technique melatonin was identified and quantified in the roots and leaves of lemon balm (Melissa officinalis L.), grown under photoperiod conditions. Furthermore, the response of plants pre-treated with exogenous 0.1 mM melatonin to the increased zinc (Zn) and cadmium (Cd) concentrations was observed, with changes in mineral (Ca, Mg), physiological and antioxidant status of the plant during heavy metals stress.
12p
tudichquannguyet
29-11-2021
13
1
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This study has been conducted to determine the concentration of heavy metals Lead (Pb), Cadmium (Cd), Copper (Cu) and Iron (Fe) in soil and some grown vegetables of Jagdalpur. (Bastar) Comparing the results of heavy metals in soil and vegetables by using Atomic Absorption Spectrometer, (Perkin Elmer A Analyst 400) double beam with their respective natural level.
6p
angicungduoc8
07-11-2020
11
1
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In the present study, heavy metal residual concentrations of cadmium (Cd), lead (Pb) and copper (Cu) in cattle and buffalo milk samples collected from three districts of the Northern part of Gujarat state were determined. A total of 800 samples were collected during the entire study in summer and winter seasons.
9p
cothumenhmong5
17-05-2020
10
1
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Intercropping, an essential cultivation pattern in modern agricultural systems, increases crop yields and soil quality. Cassava and peanut intercropping systems exhibit advantages in solar utilization and cadmium absorption, etc. However, the inner mechanisms need to be elucidated.
11p
vihamax2711
21-04-2020
13
1
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The objective of the study is to reveal the seasonal variations in the wastewater quality with respect to heavy metal contamination. To get the extent of the heavy metals contamination, wastewater samples were collected from 5 different locations from in and around river Narmada during the Winter, Summer, Monsoon Rainy and Post- Monsoon seasons. The concentration of heavy metals, such as lead, copper, manganese, zinc, cadmium, irons and chromium were determined using Atomic Absorption Spectrophotometer (AAS).
12p
trinhthamhodang1212
06-04-2020
25
3
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A simple and rapid vortex assisted ionic liquid based liquid–liquid microextraction technique (VALLME) was proposed for preconcentration of trace levels of cadmium. According to this method, the extraction solvent was dispersed into the aqueous samples by the assistance of vortex agitator. Cadmium preconcentration was mediated by chelation with the 8-hydroxyquinoline (oxine) reagent and an IL, 1-octyl-3-methylimidazolium hexafluorophosphate ([Omim][PF6]) was chosen as the extraction solvent to extract the hydrophobic complex.
7p
kethamoi1
17-11-2019
23
0
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In this paper, we studied the process of analysis cadmium and lead in green vegetable samples by flame atomic absorption spectrometry (F-AAS). The conditions of analysis such as acid concentration, subtracted solution, releasing reagent have been investigated and optimized.
7p
viminotaur2711
29-10-2019
13
0
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In recent years, the use of plants for clean-up and recovery (phytoremediation) has been studied and used in many countries of the world. In this study, E-Tian sweet sorghum (ET) and BT x 623 (BT) sorghum were treated with heavy metal cadmium at 5 concentrations (0, 5, 10, 25, 50 mg/kg).
5p
visasuke2711
02-05-2019
19
1
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