scholarly journals Determination of Macro and Microelements in Medicinal Plant Purslane (Portulaca Oleracea L.) By Atomic Absorption Spectrophotometric (AAS) and Flame Photometric Techniques.

This research was carried out to assess the mineral components of the selected vegetable Portulaca Oleracea which is commonly used as food; Ca, Mg, and Fe analyzed by Atomic Absorption Spectrophotometric (AAS) and Na, and K Flame photometric spectrophotometer. The results of macro-elements obtained having values of Ca (138.75, 140.4 ppm) for Iraqi and Lebanon origin respectively, Mg (214.53, 211.71 ppm) for Iraqi and Lebanon origin respectively, Fe is found to be (8.9, 7.03 ppm) for Iraqi and Lebanon origin respectively, Na (4, 38ppm) for Iraqi and Lebanon origin respectively, and K (18, 16 ppm) for Iraqi and Lebanon origin respectively; The indication results of this vegetable has the potential to provide essential nutrients to the human beings and it is found to be a good source of minerals particularly Ca, Mg, Fe, Na and K.

2009 ◽  
Vol 25 (1) ◽  
pp. 59-69 ◽  
Author(s):  
HI Afridi ◽  
TG Kazi ◽  
NG Kazi ◽  
MK Jamali ◽  
MB Arain ◽  
...  

The determination of trace and toxic elements in biological samples (blood, urine and scalp hair samples) of human beings is an important clinical test. The aim of our present study was to determine the concentration of arsenic (As), copper (Cu), cobalt (Co) and manganese (Mn), in biological samples of male production workers (PW) and quality control workers (QW) of steel mill, with aged 25–55 years, to assess the possible influence of environmental exposure. For comparison purpose, the same biological samples of unexposed healthy males of same age group were collected as control subjects. The determination of all elements in biological samples was carried out by electrothermal atomic absorption spectrometry, prior to microwave assisted acid digestion. The accuracy of the As, Cu, Co and Mn measurements was tested by simultaneously analyzing certified reference materials (CRMs) and for comparative purposes conventional wet acid digestion method was used on the same CRMs. No significant differences were observed between the analytical results and the certified values, using both methods (paired t-test at P > 0.05). The results indicate that concentrations of As, Cu, Co and Mn in all three biological samples of the exposed workers (QW and PW) were significantly higher than those of the controls. The possible correlation of these elements with the etiology of different physiological disorders is discussed. The results were also demonstrated the need of attention for improvements in workplace, ventilation and industrial hygiene practices.


2021 ◽  
Vol 2 (02) ◽  
pp. 94-103
Author(s):  
Maria Bibi ◽  
Samiullah Khan ◽  
Attiq-Ur-Rehman Kakar ◽  
Naqeebullah Khan ◽  
Abdul Hakeem Tareen ◽  
...  

Background: Medicinal plants have been used to treat various diseases for several years throughout the world. Xylanthemum macropodum is a medicinal plant with a vast application as a home remedy in Balochistan. Objective: The current study was conducted to determine the levels of essential and non-essential elements in Xylanthemum macropodum collected from Quetta (Balochistan, Pakistan). Methods: Analysis was conducted for eleven elements by using atomic absorption spectrophotometer and flame photometer. Results: The essential and non-essential elements that were detected in Xylanthemum macropodum are K, Na, Ca, Fe, Cu, Co, Ni, Mn, Cr, Cd and Pb, respectively. The result of the concentration of determined elements are in the order of K> Na> Ca> Fe> Cu> Co> Ni> Mn> Cd> Cr> Pb in Xylanthemum macropodum 3000> 1600> 790.25> 92.36> 85.31> 49.24> 40.94> 20.94> 6.655> 1.61> 1.18 µg/g respectively. Conclusions: Mn, Na and Pb were found within the permissible limit given by World Health Organization, while Ca, Cu, Fe, Ni, Cd and Cr were beyond the permissible limits. However, there is no permissible limit for K and Co.


2021 ◽  
pp. 69-77
Author(s):  
Mim E Tasmim ◽  
M Nasiruddin ◽  
MB Islam ◽  
RS Sultana

Acalypha indica L. is an herbaceous medicinal plant, which is grown abundantly in Bangladesh. Bangladeshi people typically use various parts of this plant for various primary healthcare treatments. The current research was conducted to check and quantify various phytochemicals and mineral components of the assorted parts of Acalypha indica L. The screening analysis shows that studied all phytochemicals were present in the leaf part but not in stem and shoot parts and some were missing or trace amount in root. Total phenol, flavonoid, and tannins content on a dry weight basis ranged from 0.53-0.82 mg GAE/g, 0.02-1.47 mg QE/g and 0.21-0.32 mg TAE/g respectively. Among the phytochemicals the leaf contains the highest amount of flavonoid (1.47 mg QE/g), and lowest in stem (0.02 mg QE/g). Similarly, the amount of minerals like Fe, Zn, K and Pb was 0.23-0.40 mg/kg, 0.01- 0.021 mg/kg, 1.55-2.85 mg/kg and 0.149-0.204 mg/kg respectively. K was the largest volume of mineral for both leaf and stem. Lowest quantity of Zn was observed in most cases. This finding indicates that the studied plant might be good source of phytochemicals. J. Bio-Sci. 29(1): 69-77, 2021 (June)


2019 ◽  
Vol 85 (2) ◽  
pp. 12-16
Author(s):  
I. V. Saunina ◽  
E. N. Gribanov ◽  
E. R. Oskotskaya

The sorption of Hg (II), Cd (II), and As (III) by natural aluminosilicate is studied. It is shown that the mineral absorbs those toxicants in a rather wide pH range, quantitative extraction of analytes being achieved in a neutral or close to neutral medium (pH values range within 7.0 - 8.0; 6.3 - 7.5; 7.4 - 8.5 for Hg (II), As (III), and Cd (II), respectively). The effect of the time of phase contact on the degree of extraction of elements is shown. The sorption capacity of the mineral in optimal conditions of the medium acidity (0.06 mmol/g for mercury, 0.31 mmol/g for cadmium, and 0.52 mmol/g for arsenic) is determined. The distribution coefficients attain values of aboutnX 103-nX 104. A new combined method for determination of Hg (II), Cd (II), and As (III) in natural and waste water is developed and tested. The method consists in a preliminary group sorption concentration of the analytes by aluminosilicate, desorption of the analytes from the surface of the mineral and their subsequent atomic absorption determination. The correctness of the method is verified in analysis of spiked samples. The method is easy to use and exhibits high sensitivity, reproducibility and accuracy of analyte determination. The relative standard deviation does not exceed 0.13. Economic availability and possibility of using domestic sorption materials are the important advantages of the proposed procedure which can be used in the practice of laboratories monitoring the quality and safety of environmental objects.


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