Copper, Zinc, Nickel, and Cobalt biosorption potential of Fucus vesiculosus (Phaeophyceae) and Gracilaria tikvahiae (Rhodophyta)

2009 ◽  
Vol 4 (2) ◽  
Author(s):  
A. Chaudhuri ◽  
M. Mitra ◽  
J.G. Schwarz ◽  
S. Schiewer
Keyword(s):  
Inductively Coupled Plasma ◽  
Brown Seaweed ◽  
Atomic Emission ◽  
Fucus Vesiculosus ◽  
Isotherm Models ◽  
Red Seaweed ◽  
Seaweed Species ◽  
Gracilaria Tikvahiae ◽  
Copper Zinc ◽  
Zinc Nickel

Dried raw and protonated biomasses of the brown seaweed Fucus vesiculosus and the red seaweed Gracilaria tikvahiae were used to study their biosorption performance for copper, zinc, nickel, and cobalt. Representative samples of both species were collected from Chincoteague Bay, Virginia. A series of “sorbate” or metal concentrations (10-450 mg L-1) were selected for each metal to compare the seaweeds' biosorption performance at pH 4.5 ± 0.1 and 25±1 °C. Samples were analyzed on Inductively Coupled Plasma-Atomic Emission Spectrometer (ICP-AES). Langmuir and Freundlich adsorption isotherm models for single solute systems were used to assess sorption performance. Both raw and protonated Fucus vesiculosus exhibited higher affinity for metal ions than Gracilaria tikvahiae, at both high and low ends of the concentration ranges. The protonated red seaweed species had maximum metal uptake values of 0.99 mequiv g-1 (copper), 0.39 mequiv g-1 (zinc), 0.66 mequiv g-1 (nickel) and 0.79 mequiv g-1 (cobalt). In comparison, protonated Fucus vesiculosus sorbed higher amounts (1.63, 1.10, 1.40, and 1.69 mequiv g-1 of the metals in the same order). The prospects of using the brown seaweed species in the treatment of industrial wastewaters in place of expensive, conventional ion-exchange resins are envisaged.

Brown Seaweed as an Indicator of Heavy Metals in Estuaries in South-West England

1973 ◽  
Vol 53 (3) ◽  
pp. 705-720 ◽  
Author(s):  
G. W. Bryan ◽  
L. G. Hummerstone
Keyword(s):  
Heavy Metals ◽  
Seasonal Changes ◽  
Intertidal Zone ◽  
Metal Contamination ◽  
Brown Seaweed ◽  
Fucus Vesiculosus ◽  
Contamination Factors ◽  
South West ◽  
Copper Zinc ◽  
South West England

Concentrations of copper, zinc, lead, manganese and iron in the brown seaweed Fucus vesiculosus have been measured in samples collected over its range of distribution in four estuaries having different degrees of metal contamination. Factors controlling the concentrations in the weed have been studied and include the concentrations of metals in the water, seasonal changes, the position of the weed in the intertidal zone and the particular portion of the plant which is analysed. It is concluded that analysis of the weed gives a reasonable indication of average conditions in the water at points along an estuary and provides a method of making comparisons with the same estuary in subsequent years or with other estuaries.

scholarly journals CONTENIDOS DE CADMIO, COBRE, ZINC Y PLOMO EN ÓRGANOS DE Rhizophora mangle de la CIÉNAGA GRANDE DE SANTA MARTA, CARIBE COLOMBIANO

2016 ◽  
Vol 37 (2) ◽  
Author(s):  
Yury A. Naranjo Sánchez ◽  
Walberto Troncoso Olivo
Keyword(s):  
Inductively Coupled Plasma ◽  
Rhizophora Mangle ◽  
Atomic Emission ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled ◽  
Aerial Roots ◽  
Young Leaves ◽  
Copper Zinc ◽  
Spectrometry Technique

In order to determine the contents of cadmium, copper, zinc, and lead in leaves, stalks, and root of Rhizophora mangle, samples from three parcels located in the river Sevilla mouth – Ciénaga Grande de Santa Marta, were taken in October 2003. Measures of metals concentrations were made through the Inductively Coupled Plasma Atomic Emission Spectrometry technique (ICP–AES). The results indicated that lead concentration in R. mangle organs was below method detection limit (<2.38 μg/g) except the absorbent root (16.3 μg/g); and significant differences exist in the contents of cadmium, copper, zinc, and lead into R. mangle organs, following this concentration order: absorbent roots > stalk > young leaves > adult leaves > aerial roots.

scholarly journals The content of copper, zinc, and nickel in the selected species of edible mushrooms

2018 ◽  
Vol 30 (1) ◽  
pp. 7-10
Author(s):  
Beata Kuziemska ◽  
Andrzej Wysokiński ◽  
Dawid Jaremko ◽  
Krzysztof Pakuła ◽  
Maria Popek ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Total Content ◽  
Atomic Emission ◽  
Average Content ◽  
Suillus Luteus ◽  
Inductively Coupled ◽  
Copper And Zinc ◽  
Microwave System ◽  
Copper Zinc ◽  
Total Average

Abstract The aim of the research was to evaluate the accumulation level of copper, zinc and nickel in forest mushrooms – Bay Bolete (Xerocomus badius), Saffron Milk Cap (Lactarius deliciosus), Rough-Stemmed Bolete (Leccinum scabrum), Slippery Jack (Suillus luteus) and Parasol Mushroom (Macrolepiota procera). The analysed mushrooms were obtained from growth forests located in the Masovian Voivodeship in the following counties: Siedlce, Sokołów, Łosice and Łuków. Total content of metals was determined using the method of atomic emission spectroscopy with inductively coupled plasma, after the earlier mineralisation of materials ‘by dry combustion’ in a muffle furnace at the temperature of 450°C, and after melting of ash in a 10% solution of HCl. In the soil samples taken from the places where the tested mushrooms occur, pH in 1 mol KCl·dm-3 and total content of copper, zinc and nickel were determined by the ICP-AES method after earlier mineralization in mixture of concentration HCl and HNO3 (3:1) in a microwave system. Test results were statistically analysed with the use of software STATISTICA 12 PL (STATSOFT, TULSA, USA). The analysed mushrooms had diverse content of the determined metals. The highest total average content of copper and zinc was present in Bay Bolete: 34.83 mg ∙ kg-1d.m. for Cu and 155.50 mg ∙ kg-1d.m. for Zn, and the highest average content of nickel was contained in Rough-Stemmed Bolete – 2.98 mg ∙ kg-1d.m.. The lowest average content of copper and zinc was determined in Rough-Stemmed Bolete: 11.98 mg ∙ kg-1d.m. for Cu and 91.90 mg ∙ kg-1d.m. for Zn, and lowest total average content of nickel was present in Bay Bolete – 1.05 mg ∙ kg-1d.m. No excessive accumulation of examined heavy metals was stated in the analysed mushrooms species.

Routine measurement of calcium, magnesium, copper, zinc, and iron in urine and serum by inductively coupled plasma emission spectroscopy.

1986 ◽  
Vol 32 (9) ◽  
pp. 1660-1665 ◽  
Author(s):  
D E Nixon ◽  
T P Moyer ◽  
P Johnson ◽  
J T McCall ◽  
A B Ness ◽  
...  
Keyword(s):  
Atomic Absorption ◽  
Inductively Coupled Plasma ◽  
Atomic Emission ◽  
Single Element ◽  
Normal Range ◽  
Inductively Coupled ◽  
Calcium Magnesium ◽  
Copper Zinc ◽  
Plasma Emission Spectroscopy ◽  
Technical Effort

Abstract We describe an inductively coupled plasma atomic emission spectrometer that has been adapted to perform routine, simultaneous, direct analyses of calcium, magnesium, copper, zinc, and iron in serum or urine without sample digestion or pretreatment. The system, constructed with inexpensive, readily available components, can analyze 1-mL or smaller samples. Results correlate nearly perfectly with those derived by standard atomic absorption techniques (r = 0.98 to 0.997). Using certified serum and urine samples from various sources, we demonstrate that the instrument yields accurate results with a precision better than certified values. The instrument is sensitive to one order of magnitude less than the lower limit of the normal range in serum or urine for all elements tested, and responds linearly to concentrations two orders of magnitude higher than the upper limit of the normal range. With the system described here, these five elements can be assayed with the same or less technical effort than needed for a single element by atomic absorption.

Quantification of elements in copper–zinc ores at micro- and macro-levels by total reflection X-ray fluorescence and inductively coupled plasma atomic emission spectrometry

2019 ◽  
Vol 11 (29) ◽  
pp. 3750-3756 ◽  
Author(s):  
Pavel Yu. Sharanov ◽  
Dmitry S. Volkov ◽  
Nikolai V. Alov
Keyword(s):  
Inductively Coupled Plasma ◽  
Aqueous Suspension ◽  
Direct Determination ◽  
Atomic Emission ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
New Approach ◽  
Inductively Coupled ◽  
Copper Zinc

A new approach for the direct determination of the elemental composition of copper–zinc ores by TXRF based on non-aqueous suspension preparation is proposed.

Estimation of Trace Elements in Gingival Crevicular Fluid and Serum-Comparative Study in Healthy and Periodontitis

2017 ◽  
Vol 9 (5) ◽  
Author(s):  
Bhagavathami Meenaksh ◽  
Chitraa R. Chandran ◽  
Aravindhan Thathchari Ranganathan ◽  
Kavindapadi Venkateswaran Rama ◽  
Valarmathy Srinivasan
Keyword(s):  
Trace Elements ◽  
Inductively Coupled Plasma ◽  
Gingival Crevicular Fluid ◽  
Serum Zinc ◽  
Cross Sectional Study ◽  
Serum Copper ◽  
Cross Sectional ◽  
Inductively Coupled ◽  
Significant Difference ◽  
Copper Zinc

Background: This study aims to determine and compare the levels of trace elements copper, zinc, selenium and chromium in GCF and serum of patients with periodontitis and healthy individuals. Methods: This cross sectional study includes 24 study subjects recruited from the patients reporting to the Department of Periodontics , Tagore Dental College Chennai. All the selected patients were subjected to a clinical examination done by a single examiner. The estimation of trace elements Copper, Zinc, Selenium and Chromium in GCF and serum is performed using Perkin Elmer optima 5300 Inductively Coupled Plasma Emission Spectrometer (ICPOES). Results: GCF and serum copper levels showed no significant difference in both periodontitis and healthy groups . Selenium levels tend to be the same in both groups. Serum zinc levels are more in periodontitis patients than healthy subjects (p less than 0.01). GCF chromium levels are found to be more in patients with periodontitis than healthy. Conclusions : More research is therefore needed to monitor the role of these trace elements C with an increased sample size to ascertain whether they are associated with a reduced risk of periodontitis.

Rapid Catalyst Capture Enables Metal-Free Parahydrogen-Based Hyperpolarized Contrast Agents

2018 ◽  
Author(s):  
Danila Barskiy ◽  
Lucia Ke ◽  
Xingyang Li ◽  
Vincent Stevenson ◽  
Nevin Widarman ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Contrast Agents ◽  
Inductively Coupled Plasma ◽  
Organometallic Compounds ◽  
Atomic Emission ◽  
Platinum Group Metals ◽  
Resonance Spectroscopy ◽  
Plasma Atomic Emission ◽  
Inductively Coupled

<p>Hyperpolarization techniques based on the use of parahydrogen provide orders of magnitude signal enhancement for magnetic resonance spectroscopy and imaging. The main drawback limiting widespread applicability of parahydrogen-based techniques in biomedicine is the presence of organometallic compounds (the polarization transfer catalysts) in solution with hyperpolarized contrast agents. These catalysts are typically complexes of platinum-group metals and their administration in vivo should be avoided.</p> <p><br></p><p>Herein, we show how extraction of a hyperpolarized compound from an organic phase to an aqueous phase combined with a rapid (less than 10 seconds) Ir-based catalyst capture by metal scavenging agents can produce pure parahydrogen-based hyperpolarized contrast agents as demonstrated by high-resolution nuclear magnetic resonance (NMR) spectroscopy and inductively coupled plasma atomic emission spectroscopy (ICP-AES). The presented methodology enables fast and efficient means of producing pure hyperpolarized aqueous solutions for biomedical and other uses.</p>

Rapid Catalyst Capture Enables Metal-Free Parahydrogen-Based Hyperpolarized Contrast Agents

2018 ◽  
Author(s):  
Danila Barskiy ◽  
Lucia Ke ◽  
Xingyang Li ◽  
Vincent Stevenson ◽  
Nevin Widarman ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Contrast Agents ◽  
Inductively Coupled Plasma ◽  
Organometallic Compounds ◽  
Atomic Emission ◽  
Platinum Group Metals ◽  
Resonance Spectroscopy ◽  
Plasma Atomic Emission ◽  
Inductively Coupled

<p>Hyperpolarization techniques based on the use of parahydrogen provide orders of magnitude signal enhancement for magnetic resonance spectroscopy and imaging. The main drawback limiting widespread applicability of parahydrogen-based techniques in biomedicine is the presence of organometallic compounds (the polarization transfer catalysts) in solution with hyperpolarized contrast agents. These catalysts are typically complexes of platinum-group metals and their administration in vivo should be avoided.</p> <p><br></p><p>Herein, we show how extraction of a hyperpolarized compound from an organic phase to an aqueous phase combined with a rapid (less than 10 seconds) Ir-based catalyst capture by metal scavenging agents can produce pure parahydrogen-based hyperpolarized contrast agents as demonstrated by high-resolution nuclear magnetic resonance (NMR) spectroscopy and inductively coupled plasma atomic emission spectroscopy (ICP-AES). The presented methodology enables fast and efficient means of producing pure hyperpolarized aqueous solutions for biomedical and other uses.</p>

Silicate analysis of carbonated rocks using ICP-AES with calibration by the concentration ratio

2020 ◽  
Vol 86 (5) ◽  
pp. 16-21
Author(s):  
T. A. Karimova ◽  
G. L. Buchbinder ◽  
S. V. Kachin
Keyword(s):  
Inductively Coupled Plasma ◽  
Concentration Ratio ◽  
Total Error ◽  
Atomic Emission ◽  
Emission Spectrometry ◽  
Calibration Error ◽  
Plasma Atomic Emission Spectrometry ◽  
Standard Samples ◽  
Inductively Coupled ◽  
Carbonate Materials

Calibration by the concentration ratio provides better metrological characteristics compared to other calibration modes when using the inductively coupled plasma atomic emission spectrometry (ICP-AES) for analysis of geological samples and technical materials on their base. The main reasons for the observed improvement are: i) elimination of the calibration error of measuring vessels and the error of weighing samples of the analyzed materials from the total error of the analysis; ii) high intensity of the lines of base element; and iii) higher accuracy of measuring the ratio of intensities compared to that of measuring the absolute intensities. Calcium oxide is better suited as a base when using calibration by the concentration ratio in analysis of carbonate rocks, technical materials, slags containing less than 20% SiO2 and more than 20% CaO. An equation is derived to calculate the content of components determined in carbonate materials when using calibration by the concentration ratio. A method of ICP-AES with calibration by the concentration ratio is developed for determination of CaO (in the range of contents 20 – 100%), SiO2 (2.0 – 35%), Al2O3 (0.1 – 30%), MgO (0.1 – 20%), Fe2O3 (0.5 – 40%), Na2O (0.1 – 15%), K2O (0.1 – 5%), P2O5 (0.001 – 2%), MnO (0.01 – 2%), TiO2 (0.01 – 2.0%) in various carbonate materials. Acid decomposition of the samples in closed vessels heated in a HotBlock 200 system is proposed. Correctness of the procedure is confirmed in analysis of standard samples of rocks. The developed procedure was used during the interlaboratory analysis of the standard sample of slag SH17 produced by ZAO ISO (Yekaterinburg, Russia).

Sign in / Sign up

Export Citation Format

Share Document