| Author (s): |
KATH, Cibele; NEVES, Paulo César Pereira das; IONESCU, Lavinel G.
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| Title: |
HYDROGEOCHEMICAL CHARACTERIZATION OF THE PREDOMINANT IONS IN THE UNDERGROUND WATERS OF MINE 3 (COMPANHIA NITROQUÍMICA BRASILEIRA), MORRO DA FUMAÇA, SANTA CATARINA, BRAZIL |
| Abstract: |
This paper presents a comparative hydrogeochemical characterization on the predominant ions of the underground water that flow the Cocal vein, in the Mina 3 (Companhia Nitroquímica Brasileira), Fluorine Distritic of Santa Catarina, Morro da Fumaça Co., Santa Catarina, Brazil. Four samples were selected: P1 – underground water to 300 m of depth; P2 –underground water to 150 m of depth; P3 – water of the dam of reject; P4 – treated water of provisioning of Companhia Catarinense de Águas e Saneamento (CASAN). In the water sample collected in the selected sources, quantitative determinations of physical-chemical parameters (pH and electric conductivity) and of cations (Al, Ca, Cl, Li, Mg, Mn, K, Si, Na, and Zn) and anions (sulfate, chloride, bicarbonate, and fluorine) were performed. The results obtained revealed that most of the analyzed ions are related to the representatives that originated from rocks that constitute the pools where the studied water flow. The hydrogeochemical classification was obtained starting from the miliequivalence pattern among the main elements, in the cations and anions form being used the triangular diagram of Piper. The underground water of the point 1 presented a hydrogeochemical characterization compatible with is geological environment occurrence and being perceptible the characterization of an interrelation among the rock and the water that circulate within and they also presented an amount of larger ions than the water of the point 2, in since it flow through a mineralized pool. The underground water of the point 2 presented good potable conditions, with some restrictions. In the water of the point 3 there is a larger ions concentration by due to the washing of the mineral, that allows a larger solubilization of the elements, and the time of permanence of the water in the lake also causes larges concentration. The water collected in P4 point exhibit good water potability parameters and absence of conditions that favor fluorosis.
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| Keywords: |
hydrogeochemical, physical-chemical parameters, geological environment.
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| Year: |
2015
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| Initial page: |
2
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| Final page: |
21
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| Link: |
Acessar |
| DOI: |
10.48141/SBJCHEM.v23.n23.2015.6_revista2015.pdf |
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|
| Author (s): |
Aboaba, S. A.; Adeeko, O.
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| Title: |
VOLATILE COMPONENTS OF ONCOBA SPINOSA LEAF AND MORUS MESOZYGIA LEAF AND STEM BARK |
| Abstract: |
The essential oils of Oncoba spinosa leaf and Morus mesozygia leaf and stem bark were extracted using hydrodistillation and analyzed by means of Gas chromatography (GC) and GC coupled with mass spectrometry (GC-MS). The yields of the essential oils were; 0.50 %, 0.165 %, and 0.456 % respectively for Oncoba spinosa leaf, Morus mesozygia leaf, and stem oil. A total of twenty-eight, thirty-four and twenty compounds representing 92.0%, 92.0%, and 96.9% of the total oil contents were identified, respectively from the leaf of O. spinosa, leaf, and stem oil of M. mesozygia. Leaf oil of O. spinosa contained linalool (22.1 %), ȕ – caryophyllene (18.7 %), caryophyllene oxide (10.6 %) and pentadecanal (5.6 %) as the main constituents. M. mesozygia leaf oil was dominated with ȕ – elemene (11.7 %), (E) –ȕ- ionone (12.4 %), Į- selinene (5.1 %),germacrene A (6.0 %), į – cadinene (4.7 %) and spathulenol (7.4 %) while M. mesozygia stem oil had 2 –dodecanone (77%) and hexahydrofarnesylacetone (13 %) as its main constituents.
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| Keywords: |
Oncoba spinosa, Morus mesozygia, linalool, (E) –ȕ- ionone, 2 –dodecanone.
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| Year: |
2015
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| Initial page: |
23
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| Final page: |
35
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| Link: |
Acessar |
| DOI: |
10.48141/SBJCHEM.v23.n23.2015.26_revista2015.pdf |
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|
| Author (s): |
Ogunmola, O. O.; Bolaji, O.S.; Sodamade, A.
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| Title: |
THE CHEMICAL AND MEDICINAL POTENTIALS OF THE FRUIT ESSENTIAL OIL OF Chrysophyllum cainito (INDIA STAR APPLE) |
| Abstract: |
Chrysophyllum cainito is a lesser-known fruit with several medicinal applications. The essential oil was obtained by hydrodistillation and was analyzed by gas chromatography/mass spectrometry, GC/GC-MS. Twenty components were identified in the essential oil, the oil was characterized by a high proportion of fatty acids (69.37%) represented by pyruvic acid, 10-hendecenoic acid, E-9-tetradecenoic acid, pentadecanoic acid, hexodecacanoic acid, and cis-9-octadecenoic acid. The oil yield was 0.19 v/w of the wet sample and its compositional profile showed markedly qualitative and quantitative variation with essential oil from Cuba. This essential oil was seen to be active against gram-positive bacteria, Escherichia coli, Klebsiella pneumoniae, Samonella typhimurium, and Proteus mirabilis, and also gram-negative bacteria, Staphylococcus aureus, and Streptococcus agalactia.
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| Keywords: |
Chrysophyllum cainito, essential oil, hydrodistillation, fatty acid.
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| Year: |
2015
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| Initial page: |
37
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| Final page: |
47
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| Link: |
Acessar |
| DOI: |
10.48141/SBJCHEM.v23.n23.2015.39_revista2015.pdf |
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|
| Author (s): |
Hany M. Dalloul; Khaled El-nwairy; Ali Z. Shorafa; Ahmed Abu Samaha
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| Title: |
SYNTHESIS AND BIOLOGICAL ACTIVITIES EVALUATION OF SOME NEW SPIRO 1,2,4-TRIAZOLE DERIVATIVES HAVING SULFONAMIDE MOIETY |
| Abstract: |
A series of new spiro 1,2,4-triazoles V-IXa-j were synthesized by the reaction of appropriate amidrazones IV with cyclic ketones in the presence of p-toluene sulfonic acid as a catalyst. The structures of the synthesized compounds have been confirmed by the elemental analysis and spectroscopic data (IR, 1H NMR, 13C NMR and MS). The microbial features of the synthesized compounds were studied using well-established methods from the literature.
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| Keywords: |
Amidrazone, nitrilimines, spiro 1,2,4-triazole, sulfonamide, cyclic ketone.
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| Year: |
2015
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| Initial page: |
49
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| Final page: |
59
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| Link: |
Acessar |
| DOI: |
10.48141/SBJCHEM.v23.n23.2015.50_revista2015.pdf |
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|
| Author (s): |
Latona, Dayo Felix; Dada, Adewumi Oluwasogo
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| Title: |
KINETICS OF REACTION BETWEEN MALACHITE GREEN AND HYDROXYL ION IN THE PRESENCE OF REDUCING SUGARS |
| Abstract: |
The reaction was studied via pseudo-first-order kinetics using a UV-1800 Shimadzu spectrophotometer with a thermostated cell compartment and interfaced with a computer. The reaction showed first order with respect to malachite green and sugar and hydroxyl ion concentrations. However, the reaction was independent of ionic strength and showed no dependence on the salt effect, indicating an inner sphere mechanism for the reaction. There was nopolymerization of the reaction mixture with acrylonitrile, indicating the absence of radicals in the course of the reaction. Michaelis-Menten plot indicated the presence of a reaction intermediate in the rate-determining step. The activation parameters of the reaction have been calculated andproducts were elucidated by FTIR spectroscopy. The stoichiometry of the reaction is 1:1. A mechanism consistent with the above facts has been suggested.
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| Keywords: |
Malachite green, sodium hydroxide, glucose, fructose, xylose.
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| Year: |
2015
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| Initial page: |
61
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| Final page: |
72
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| Link: |
Acessar |
| DOI: |
10.48141/SBJCHEM.v23.n23.2015.61_revista2015.pdf |
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|
| Author (s): |
Larayetan, R. A.; Adegbe, A. A.; Owonikoko, A. D.
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| Title: |
CHEMICAL CONSITUENTS AND PHYTOCHEMICAL STUDIES OF EPAZOTE (ChenopOdium ambrosioides) LINN GROWN IN NORTH CENTRAL NIGERIA |
| Abstract: |
The essential oil from the leaves of C. ambrosioides of North Central Nigeria was obtained by hydro-distillation using Clevenger apparatus. The oil was analyzed by a combination of GC and GCMS. Nineteen components amounting to 98.37% of the total oil were identified. The main constituents of the North Central Nigeria grown C.ambrosioides are 2-Carene(17.80%), 2-bornene(14. 79%), para-Cymene(12.93%), alfa-Terpinene(8.98%), Cyclohexene-4-methyl-3-(1-methylethylidene)(7.94%), alfa-Terpinolene(7.90%), gama-Terpinene (6.94%). The oil was found to be a yellow liquid, the obtained yield is 1.35% w/w based on the dry weight. The preliminary phytochemical investigation showed that C.ambrosioides methanolic leaf extract contains some secondary metabolites such as Flavonoids, Terpenoids, Steroids, Alkaloids, and Saponins. The result justified the use of C. ambrosioides in treating various infectious diseases.
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| Keywords: |
Volatile constituents Phytochemical screening, Epazote hydro distillation, Chenopodium ambrosioides.
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| Year: |
2015
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| Initial page: |
73
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| Final page: |
82
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| Link: |
Acessar |
| DOI: |
10.48141/SBJCHEM.v23.n23.2015.73_revista2015.pdf |
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|
| Author (s): |
Ugah, T. C.; Aboaba, S. A1,; Ekundayo, O.
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| Title: |
VOLATILE OIL CONSTITUENTS OF THE LEAVES AND WOODS OF Cedrela odorata AND Dalbergia latifolia FROM SOUTH WEST NIGERIA |
| Abstract: |
The essential oils from the leaves and woods of Cedrela odorata and Dalbergia latifolia were obtained by hydrodistillation and characterized by Gas Chromatography-Mass Spectrometry (GC-MS) method. A total of 10, 39, 72, and 6 compounds representing 97.63%, 99.16%, 95.13% and 99.83% wereidentified in Cedrela odorata leaf, wood, Dalbergia latifolia leaf and wood respectively. The major components in Cedrela odorata leaf are Į-copaene (4.40%), Į-santalene (4.57%), cubenol (8.71%), ȕelemene (23.06%) and (-)-spathulenol (42.49%) while the wood was dominated by Ȗ-eudesmol (8.84%), z-nerolidol (9.23%), ȕ-bisabolol (10.95%), Į-curcumene (12.31%) and Į-cedrene (17.56%). The leaf essential oil of Dalbergia latifolia had in its composition majorly Į-bergamotene (4.23%), (-)-spathulenol (4.49%), ȕ-caryophyllene oxide (5.04%), Į-selinene (4.89%), 1-heptariacotanol (5.71%) and heptacosane (6.31%) while the wood contained mainly methylcyclohexane (4.93%), hexanal (6.43%), m-xylene(16.71%) and p-xylene (58.8%).
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| Keywords: |
Volatile oil, Sesquiterpenes, (-)-spathulenol, Į-bergamotene, ȕ-elemene .
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| Year: |
2015
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| Initial page: |
83
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| Final page: |
90
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| Link: |
Acessar |
| DOI: |
10.48141/SBJCHEM.v23.n23.2015.83_revista2015.pdf |
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|
| Author (s): |
Ogunmola Oluranti O.
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| Title: |
CHEMICAL COMPOSITIONS AND ANTIMICROBIAL ACTIVITY OF THE LEAF ESSENTIAL OIL OF GOSSYPIUM HIRSUTUM |
| Abstract: |
The study was conducted to analyze the chemical constituent and to evaluate the antimicrobial properties of the leaf essential oil of Gossypium hirsutum. The oil was obtained by hydrodistillation and was analyzed by gas chromatography and gas chromatography-mass spectrometry (GC/GC-MS). This revealed the presence of fifty components accounting for - % of the total oil fraction. The leaf oil was dominated by patchoulane (14.70%), Ally 1-2, 6,6–trimethyl bicyclo (3.1.1) heptane (5.95%). 1,7, 7 – trimethyl bicyclo (2.2.1) heptanes (5.95%)and 9- (1 – methylethylidene) bicyclo (6.1.0) nonane (5.95%). The oil displayed high antimicrobial potentials to some tested microorganisms.
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| Keywords: |
Gossypium hirsutum, patchoulane, aliphatic alcohol, antimicrobial potential.
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| Year: |
2015
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| Initial page: |
91
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| Final page: |
100
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| Link: |
Acessar |
| DOI: |
10.48141/SBJCHEM.v23.n23.2015.91_revista2015.pdf |
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