scholarly journals Seasonal variation of some major ions in a tropical lagoon waters, Aby lagoon (Côte d’Ivoire): Relationship with temperature, salinity and pH

2021 ◽  
Vol 14 (9) ◽  
pp. 3391-3399
Author(s):  
Sylvie Assemian-Niango ◽  
Kouakou Gains Kpan Kpan ◽  
Natchia Aka
Keyword(s):  
Major Ions ◽  
Absorption Spectrometry ◽  
Anthropogenic Influence ◽  
Sodium Potassium ◽  
Seasonal Differences ◽  
Standard Methods ◽  
Tropical Lagoon ◽  
Nephelometric Method ◽  
Calcium And Magnesium

In response to continental inputs, the aim of this study was to know some major ions contents in Aby lagoon waters, according to seasons and in relation to temperature, salinity and pH. To do this, concentrations of major ions such as (sodium (Na +), potassium (K +), calcium (Ca2+), magnesium (Mg2+) and sulphates (SO42-) of Aby lagoon waters are determined, according to seasons and in relation to temperature, salinity and pH. From September 2007 to July 2009, during monthly sampling campaigns, temperature, salinity and pH of lagoon’s waters were measured, in situ, at twenty (20) stations distributed along lagoon. Water samples were taken at these stations, at the depth of 0.2 m below the surface, to determine in laboratory, concentrations of major ions using standard methods (Atomic Absorption Spectrometry methods for sodium, potassium, calcium and magnesium and Nephelometric method for sulphates). Seasonal variations of sodium, potassium and calcium concentrations are proportional to temperature, salinity and pH. These ions are under influence of oceanic waters inputs. In contrast, magnesium and sulphates are under anthropogenic influence, these concentrations are not proportional to temperature, salinity and pH. There are significant seasonal differences between major ions concentrations of waters from one season to another. Aby lagoon is under strong anthropogenic influence.

scholarly journals Evaluation of Inorganic Elements in Herbal preparation by FAAS and FES

2016 ◽  
Vol 2 (1) ◽  
pp. 1
Author(s):  
Muhammad Tayyab Ansari ◽  
Tariq Mehmood Ansari ◽  
Mubasher Ahmad
Keyword(s):  
Flame Atomic Absorption Spectrometry ◽  
Emission Spectroscopy ◽  
Absorption Spectrometry ◽  
Herbal Preparation ◽  
Inorganic Elements ◽  
Sodium Potassium ◽  
Herbal Preparations ◽  
Flame Atomic Absorption ◽  
Flame Emission ◽  
Calcium And Magnesium

In this study four inorganic elements i.e. sodium, potassium, calcium and magnesium were estimated in eleven locally available herbal preparations used as sex stimulants using Flame Atomic Absorption Spectrometry and Flame Emission Spectroscopy. Samples names were Ginseng, Nan-bao, Choe, Safoof-e-Mughallis (Powder), Imsaki (Jawahar) capsules, Zarjam (capsules), Shahi (capsules), Mumsik sultani (Jawahar) capsules, Laboob-e-Kabeer, Laboob Bard (Jawahar wala), Laboob Khas (Jawahar wala). Results indicate the presence of variable amounts of metals in these samples. Order of concentration of metals in different samples has been found to be as Ca> Mg > K > Na. Shahi capsules exhibited highest amount of sodium (3100±1825 µg/g) and other three minerals were in higher quantities. Choe contained highest amount of calcium (54175±4898 µg/g) and magnesium (53223±3205 µg/g) while Mumsik showed highest quantity of potassium (12070±882 µg/g). Ginseng, Nan-bao and Zarjam contained moderate amounts of all minerals and Laboob Khas exhibited lowest amounts of calcium (922±338µg/g), magnesium (463±106 µg/g), potassium (2968±735 µg/g) and small quantity of sodium (476±246 µg/g). It is evident that these herbal preparations can replenish the deficiency of minerals but excessive use of such herbal preparations may cause health hazards.  

Ionic regulation in the Pacific edible crab, Cancer magister (Dana)

1973 ◽  
Vol 51 (7) ◽  
pp. 735-743 ◽  
Author(s):  
F. R. Engelhardt ◽  
P. A. Dehnel
Keyword(s):  
Estuarine Environment ◽  
Ionic Regulation ◽  
Magnesium Ions ◽  
Cancer Magister ◽  
Sodium Potassium ◽  
Seasonal Differences ◽  
The Pacific ◽  
Calcium And Magnesium ◽  
Seasonal Acclimation

Regulation in blood and urine of chloride, sodium, potassium, calcium, and magnesium was determined for the crab, Cancer magister, collected from an estuarine environment and adapted to hypo- and hypersaline conditions. Seasonal differences in regulation were found, demonstrating seasonal acclimation. In all instances except magnesium, ions were regulated hypertonically in dilute media, and summer-adapted animals were the greater regulators. In concentrated media, ions differed with regard to the degree of regulation. Regulation of magnesium is strongly hypotonic. Size was determined not to be a factor in the regulation of ions.

Trace Metal Uptake and Sodium Regulation in Gammarus Marinus From Metal Polluted Estuaries in England

1986 ◽  
Vol 66 (1) ◽  
pp. 83-92 ◽  
Author(s):  
David A. Wright
Keyword(s):  
Trace Elements ◽  
Metal Uptake ◽  
Sea Water ◽  
Major Ions ◽  
The Other ◽  
Regulatory Mechanisms ◽  
Sodium Potassium ◽  
Calcium And Magnesium ◽  
Sodium Regulation ◽  
Blood Pigment

The regulation of major ions in aquatic Crustacea has been extensively studied, and it is hardly surprising that ever-present ionic constituents of sea water such as sodium, potassium, chloride, calcium and magnesium have been incorporated into highly efficient regulatory mechanisms. On the other hand, we know little of the mechanisms governing the uptake and regulation of trace elements, despite the fact that metals such as zinc and copper may be important constituents of enzymes and blood pigment.

scholarly journals Multiparametric Flow System for the Automated Determination of Sodium, Potassium, Calcium, and Magnesium in Large-Volume Parenteral Solutions and Concentrated Hemodialysis Solutions

2006 ◽  
Vol 2006 ◽  
pp. 1-6 ◽  
Author(s):  
Mariela Pistón ◽  
Isabel Dol ◽  
Moisés Knochen
Keyword(s):  
Large Volume ◽  
Flow System ◽  
Absorption Spectrometry ◽  
Emission Spectrometry ◽  
Concentrated Solutions ◽  
Sodium Potassium ◽  
Flame Atomic Absorption ◽  
Calcium And Magnesium ◽  
Automated Determination

A multiparametric flow system based on multicommutation and binary sampling has been designed for the automated determination of sodium, potassium, calcium, and magnesium in large-volume parenteral solutions and hemodialysis concentrated solutions. The goal was to obtain a computer-controlled system capable of determining the four metals without extensive modifications. The system involved the use of five solenoid valves under software control, allowing the establishment of the appropriate flow conditions for each analyte, that is, sample size, dilution, reagent addition, and so forth. Detection was carried out by either flame atomic emission spectrometry (sodium, potassium) or flame atomic absorption spectrometry (calcium, magnesium). The influence of several operating parameters was studied. Validation was carried out by analyzing artificial samples. Figures of merit obtained include linearity, accuracy, precision, and sampling frequency. Linearity was satisfactory: sodium,r2>0.999(0.5–3.5g/L), potassium,r2>0.996(50–150 mg/L), calcium,r2>0.999(30–120 mg/L), and magnesium,r2>0.999(20–40 mg/L). Precision (sr, %,n=5) was better than2.1%, and accuracy (evaluated through recovery assays) was in the range of99.8%–101.0% (sodium),100.8–102.5% (potassium),97.3%–101.3% (calcium), and97.1%–99.8% (magnesium). Sampling frequencies (h−1) were 70 (sodium), 75 (potassium), 70 (calcium), and 58 (magnesium). According to the results obtained, the use of an automated multiparametric system based on multicommutation offers several advantages for the quality control of large-volume parenteral solutions and hemodialysis concentrated solutions.

scholarly journals Physicochemical evolution and evaluation of groundwater quality in Mougheul area (Southwest of Algeria)

2021 ◽  
Vol 11 (2) ◽  
Author(s):  
Saliha Mebarki ◽  
Benali Kharroubi ◽  
Mohammed Amin Kendouci
Keyword(s):  
Physicochemical Parameters ◽  
Calcium Sulfate ◽  
Major Ions ◽  
Groundwater Resources ◽  
Triangular Diagram ◽  
Wilcox Diagram ◽  
Calcium And Magnesium ◽  
Increasing Demand ◽  
Pressure On Water Resources

AbstractIn arid areas, the pressure on water resources and in particular on groundwater resources is on the rise, mainly due to increasing demand and the deterioration of water quality. In this context, the present work aims to follow the annual evolution, between 2009 and 2019 of the physicochemical parameters, and to evaluate the quality of groundwater of the region of Mougheul, by determining the data of pH, TDS, conductivity and the concentrations of major ions ( Ca+2, Mg+2, Na+, K+, Cl−, HCO3−, SO4−2, NO3−) of 07 water points. The results revealed that all the levels of the physicochemical parameters do not exceed the WHO potability standards, except high values were observed at the level of well W6 which exceeds the limits recommended by the WHO (50 mg /l). The diagram of Schöeller and Berkaloff shows that the groundwater has the bicarbonate magnesium facies. The representation of the data on the Piper triangular diagram shows that W6 has the facies chlorinated and calcium sulfate and magnesium and the other water points have the facies bicarbonate calcium and magnesium. SAR values show that the groundwater of Mougheul is excellent for irrigation. The classification according to the Wilcox diagram shows that the groundwater of Mougheul in general is good quality, but the well of W6 water is suitable for irrigation and requires monitoring the evolution of salinity.

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