Nes Science College

Nānded, India

Nes Science College

Nānded, India

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Shinde A.,Nes Science College | Zangade S.,Organic research center | Chavan S.,Organic research center | Vibhute Y.,Organic research center
Organic Communications | Year: 2014

Propane-1,3-diamine 1 on condensation with different halogeno substituted benzaldehydes 2a-p under microwave irradiation affords novel series of bis-schiff bases 3a-p. Structures of the newly synthesized bis-Schiff bases established on the basis of spectroscopic data. Further, all compounds screened for antimicrobial activity against Staphylococus aureus, Escherchia coli, Aspergillus niger and Aspergillus flavus. Most of the titles compounds show potent activity. © 2014 ACG Publications.

Chandra S.,Custom House Laboratory | Mahindrakar A.N.,New Custom House Laboratory | Shinde L.P.,Nes Science College
International Journal of ChemTech Research | Year: 2014

Apple and grape samples were analysed for the detection of pesticide residues employing multiresidue analysis by gas chromatography mass-spectrometry. This method was successfully developed for the determination of pesticide residues namely monocrotophos, chlorpyrifos, endosulfan and cypermethrin in apple and grape samples. The fruits were extracted by the application of a single-phase extraction of 15 g of sample with acetonitrile containing 1% of acetic acid, followed by a liquid-liquid partition formed by the addition of MgSO4 and NaOAc. Cleanup of the extract was carried out with primary secondary amine (PSA) and magnesium sulphate.The average recoveries of pesticide residues in grape and apple samples were 75.0 to 105.0%. The method offers cheaper and safer alternative to typical multi-residue analysis methods for apple and grape fruits.

Fegade M.R.,Nes Science College | Jadhav V.A.,Nes Science College | Muley A.A.,S R T M University
European Journal of Scientific Research | Year: 2011

In this paper, method is proposed for finding an optimal solution for transportation problem. Transportation cost, supply and demand are considered in the intervals. Separation method is proposed which is based on zero point method. Using interval membership function we have checked optimality of the solution. Also, this method is compared with triangular membership function. Finally, the feasibility of the proposed method is checked with a numerical example. © EuroJournals Publishing, Inc. 2011.

Rajewar V.R.,Nes Science College | Dharmale M.K.,Yeshwant Mahavidyalaya | Pingalkar S.R.,Nes Science College
Asian Journal of Chemistry | Year: 2015

A series of La(III), Pr(III), Nd(III), Sm(III) and Tb(III) complexes have been synthesized with Schiff base (SAZ) derived from the condensation of salicylaldehyde with hydrazine. The prepared Schiff base and its lanthanide complexes have been characterized by elemental analysis, molar conductance, magnetic susceptibilities, UV-visible, IR, 1H NMR, thermal studies and XRD. The complexes have stoichiometry of the type [Ln(SAZ)2·2(H2O)]Cl3, for Pr(III), Sm(III) and Tb(III) where as [Ln(SAZ)2Cl2]Cl for La(III) and Nd(III), where the ligand SAZ coordinates to the lanthanide ion through azomethine nitrogen and phenolic oxygen of azine moiety.

Garud S.B.,Vasantrao Naik College | Shinde L.P.,Nes Science College
Research Journal of Pharmaceutical, Biological and Chemical Sciences | Year: 2013

We report the synthesis of the Benzimidazole ligands, 2-[(1H Benzimidazole-2-yl)-methyl]-phenol, 2-[(1H-Bezimidazole-2yl)]-bromo-phenol, 2-[(1H-Benzimidazole-2yl)]-4-bromo-6-iodo-phenol, 2-[(1H-Benzimidzole-2yl)]-4,6-diiodo-phenol and their Cu(II) metal complexes, characterization and antimicrobial activity. The structure of the ligands and their complexes was investigated using, FT-IR, UV-Vis, TGA/DTA, X-ray Diffferaction. In the complexes, all the ligands behave as bidentate ligands, the oxygen in the ortho position and azomethine nitrogen atoms of the ligands coordinate to the metal ions. Antimicrobial activity of the ligands and metal complexes were tested Aspergillusniger, Aspergillusflavus, Escherichia coli and Bacillus subtilisusing by the disc diffusion method.

Kulkarni D.R.,Shrikrishna Mahavidyalaya | Deshpande M.N.,NES Science College
Research Journal of Chemistry and Environment | Year: 2013

Metal chelates of ligand 4-(N-methyl-2, 2-dichloroacetamido) phenyl-2-furoate have been synthesized and characterized by elemental analysis, molar conductivity, magnetic moments, IR, 1H NMR, UV-visible, EPR, TG/DTA and powder XRD. Copper and cobalt complexes have 1:1 stoichiometries while chromium complex has 1:2 stoichiometry. Metal chelates have considerable influence on organic carbon, total nitrogen, phosphorus and potassium content and percent weight loss. After decomposition, C: N ratio of the organic matter was appreciably improved compared to non-decomposed organic matter.

Mahindrakar A.N.,New Custom House Laboratory | Chandra S.,Custom House Laboratory | Shinde L.P.,Nes Science College
Chemosphere | Year: 2014

Solid-phase extraction (SPE) of nine polychlorinated biphenyls (PCBs) from transformer oil samples was evaluated using octadecyl (CI8)-bonded porous silica. The efficiency of SPE of these PCBs was compared with those obtained by solvent extraction with DMSO and hexane. Average recoveries exceeding 95% for these PCBs were obtained via the SPE method using small cartridges containing 100. mg of 40. pm CI8-bonded porous silica. The average recovery by solvent extraction with DMSO and hexane exceeded 83%. It was concluded that the recoveries and precision for the solvent extraction of PCBs were poorer than those for the SPE. © 2013 Elsevier Ltd.

Balkhande J.V.,Nes Science College | Kulkarni A.N.,Nes Science College
Ecology, Environment and Conservation | Year: 2013

House sparrow (Passer domesticus) is the brown and fluffy bird which is widely distributed, most familiar and abundant bird, found in almost in all habitats. (Summer-Smith 1988; Anderson, 2006). Effect of different habitats on its population density was studied from September 2010 to August 2012 at four different habitats such as agriculture field (Chudawa), Purna river, Grassland (Purna-Tadkalas road) and residential colony (Siddharath Nagar). For the study Line Transects and Point Count Methods were used. It was observed that population density was abundant in residential colony and rare in grassland as compare to other habitats. The details of observation are discussed in the text. Copyright © EM International.

Wanule D.,Nes Science College
Journal of environmental science & engineering | Year: 2011

Currency (notes and coins) handling by people during transaction is one of the most mobile objects within the community, which has a potential of transmitting pathogens. A survey carried out recently in Nanded city (Maharashtra) revealed heavy contamination of currency notes and coins by important fungal pathogens of plants and man, i.e. Aspergillus niger (60.37%), A. flavus (3.98%), A.nidulans (0.2%), Penicillium citrinum (17.80%), Alternaria tenuis (0.20%), Curvularia pallescens (0.20%), Cladosporium cladosporioides (10.69%), Rhizopus stolonifer (1.04%), an unidentified Aspergillus species .1 (0.20%) and another unidentified Aspergillus species.2 (3.14%), Fusarium sp. (0.20%), Trichoderma viride (0.20%),white sterile mycelium (0.62%) and brown sterile mycelium (0.62%). The study highlights the importance of preventing and controlling fungal contamination of currency notes and coins in public health and plant protection. Currency notes or coins are rarely suspected as infection sources and often not quarantined at airport or seaport terminal. Possible transmission of pathogens or "alien", invasive species through currency across borders or across countries needs to be taken into consideration especially under circumstances of serious outbreak of important disease or when there is a threat of biological warfare.

Deshmukh J.H.,Yeshwant Mahavidyalaya | Deshpande M.N.,Yeshwant Mahavidyalaya | Deshpande M.N.,NES Science College
Asian Journal of Chemistry | Year: 2010

4-Chloro-N-furfuryl-5-sulphamoylanthranilic acid when treated with metal ion solutions of Fe(II), Co(II), Cu(II) in non-aqueous medium using different experimental conditions, there is formation of metal complex. After the purification of metal complexes, they are characterized by analytical, thermal, magnetic, infrared, electronic and X-ray diffraction methods. The expected geometry and structure of prepared metal complexes were determined. The nature of the bonding present in the complexes is determined by ESR spectra.

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