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Asian Journal of Applied Chemistry Research
Number of Followers: 1

This is an Open Access Journal

Open Access journal
ISSN (Online) 2582-0273
Published by SCIENCEDOMAIN international

[65 journals]

Concentration Levels of Heavy Metals and Other Parameters in Water
Borehole around Mogadishu Area, Somalia
- Authors: Abdolahi Mohamed Adawe, Amir O. Yusuf, John Onyattac, Godfrey A. Wafulad
  Pages: 1 - 10
  Abstract: The need for clean and safe consumable water is of vital importance to any society since water is an essential substance for the sustenance of life. Mogadishu is one of the rapidly growing cities in the world with a high population, resulting in poor levels of sanitation and an inadequate clean water supply system. A total of 6 water samples were analyzed from the Mogadishu region in seven sites namely, Rer M.Shiekh, Gorgor, Umu batula, Cisse qodax, Soonikia (digfer), and Tarabuuna (umu caisha) respectively to assess the levels of heavy metals. The levels of selected heavy metals analyzed were Cd, Zn, and Pb, the analysis was done by Atomic Absorption Spectrophotometer and other parameters analyzed were the level of pH, fluoride, chloride, nitrate, water hardness, electrical conductivity, and total dissolved solids (TDS), and the status of water borehole quality in the Southern Mogadishu region, Somalia. The results were compared with World Health Organization (WHO). pH values ranged (8.1-8.9) which were below WHO standard limits except for Cisse qodax borehole (8.9) which was higher than WHO standard limits. Other value for parameters were fluoride (0.28-0.596 mg/L); chloride (279.57-888.92 mg/L); nitrate (4.27-146.6 mg/L); electrical conductivity (1.428-3.280 mS /cm); hardness (229.32-501.76 mg/L); total dissolved solids (1340-3428 mg/L); cadmium (0.03-0.07 mg/L). Lead and zinc were not detected. Hardness, chloride, electrical conductivity, total dissolved solids (TDS), cadmium values were higher than WHO standard limits. Nitrate values were below WHO standard limits except for Umu batula borehole (60.92 mg/L) and Rer M.shiekh borehole (146.6 mg/L) which are values higher than WHO standard limits. All boreholes had low fluoride content. However high cadmium concentration is of much concern health-wise. The presence of heavy metals in the water borehole is of concern since they could impact negatively on human health even at low levels due to their accumulation. This study is of significance in providing information on the heavy metals content of the selected water boreholes in Mogadishu, information that is currently lacking considering the management issues in the Country. Further, it could help in mapping out the boreholes based on their water quality.
  PubDate: 2022-02-12
  DOI: 10.9734/ajacr/2022/v11i230249
Synthesis, Characterization and Biological Activity of New Amides
Containing Azo Moieties
- Authors: Elham Abdalrahem Bin Selim, Mohammed Hadi Al–Douh, Samia Mabrook Bin Mahram, Wedad Mohammed Al–Haik, Khalid Saeed Sonbol
  Pages: 11 - 22
  Abstract: Three new amide compounds 6, 8 and 9 were derived from diazo dye 4. 4-Hydroxy-3-methoxy-5-(2,6-dinitrophenyl) benzaldehyde 4 was reacted separately with compounds 5 and 7 to obtain 6 and 8, respectively. The amide compound 9 was synthesized by two different methods. The reaction between 6 and a diacyl chloride compound 7 gave compound 9. Also, compound 9 was produced via the reaction of compound 8 and an N-terminus compound 5. All compounds were characterized by their melting points, UV-Vis, and FTIR spectra. Moreover, the mass spectrum and elemental analysis of compound 9 were determined. All three synthesized compounds were tested against P. mirabilis, E. coli, and S. aureus at different concentrations and showed significant results.
  PubDate: 2022-02-15
  DOI: 10.9734/ajacr/2022/v11i230250
Adsorption Capacity of Lead (II) (Pb2+) in Aqueous Solution by Brown
Seaweed (Fucus spiralis)
- Authors: J. I. Bungudu, Lorrie M. Murphy
  Pages: 23 - 30
  Abstract: The sorption uptake of lead by marine brown alga Fucus spiralis was investigated in bimetallic solutions. The experimental data fitted very well to Langmuir model. In bimetallic systems, the affinity of biomass for lead and cadmium increased and the sorption uptake of these metals was not affected by increasing concentrations. However, in solutions with both metals there was a significant mutual decrease of their sorption levels at high concentrations of the other metal. There is practical removal up to 100 ± 4% for biomass dosage 4.0 ±0.1 g which correspond to lowest adsorbed amount of 0.25 ± 0.1 mg/g. The highest adsorbed value was recorded with biomass dosage 0.25 ± 0.1 g but with the lowest percentage removal of 92.50 ± 6%. In this study at initial metal concentration of 10 mg/L the highest metal removal of 96% was achieved.
  PubDate: 2022-04-13
  DOI: 10.9734/ajacr/2022/v11i230251
Isolation and Characterisation of Haemanthamine Alkaloid from Daffolis
Extract using NMR and Mass Spectroscopic Techniques
- Authors: M. O. Ogbu, M. B. Fugu, A. M. Fulata, C. V. Nnam-Obi, D. E. Ndukwu
  Pages: 31 - 37
  Abstract: The recent surge in drug resistance and failure is belief to be a factor in the trend for the isolation of natural products from plants and other sources. This is largely due to the efficacy and safety of their components. Haemanthamine is an alkaloid of Amaryllidaceae family, the compound was reported to have lots of medicinal effects against microbes and some forms of cancers with significantly low or no side effects. The plant Daffodil is one of the commonest reservour of this alkaloid and used traditionally in the treatment of urinary disease, headache, fever, swelling growth, joint ailments, skin diseases, bruises, sprains, respiratory problems, gastrointestinal disorders among others. These medicinal potential of the plant stimulated our interest to isolate and characterized the Haemanthamine alkaloids from the plant using NMR and Mass Spectroscopic Techniques. The results obtained are in good agreement with the previously reported literatures which indicate that Haemanthamine was successfully isolated.
  PubDate: 2022-04-14
  DOI: 10.9734/ajacr/2022/v11i230252