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E-Journal of Chemistry
ISSN 0973-4945 · Wiley · 1.595 artikel di indeks
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Artikel Jurnal
Synthesis and Fungicidal Activity of Pyrazolecarboxamide Containing α-Aminoacetanilide Moiety
A series of pyrazolecarboxamides containing α-aminoacetanilide moiety (4) were synthesized. These compounds were characterized by IR, MS and 1H NMR. Their fugicidal activities against Rhizoctonia solani, Sclerotinia sclerotiorum, Monilinia fructicola and Alternaria brassicae were evaluated. The…
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Synthesis and Characterization of Mono- and Bicycle Heterocyclic Derivatives Containing 1, 2,4-Triazole, 1,3,4-Thiadiazine and 1,3-Thiazole Rings
Reaction of tartaric acid with thiocarbohydrazide (2) and thiosemicarbazide (6) afforded 1,2-bis(4-amino-5-mercapto-4H-1,2,4-triazol-3-yl)-ethane-1,2-diol (3) and 1,2-bis(5-mercapto-4H-1,2,4-triazol-3-yl)-ethane-1,2-diol (7). Reaction of compounds 3 and 7 with DMAD (dimethylacety lendi carboxylate)…
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Synthesis and Low Temperature Crystal Structure of Disodium Tetrapotasium Decavanadate
A decavanadate K4Na2V10O28.10H2O has been prepared and chractrisized by, IR and Raman spectroscopy. Single crystal x-ray analysis has been carried out on H20K4Na2O38V10 which crystallizes in the triclinic. System, space group P-1, with a=8.5584(5) Å, b=10.3041(6), c=10.9801(7) and Z=1. Structural…
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Fast and Efficient Synthesis of 4-Arylidene-3-phenylisoxazol-5-ones
A convenient and easy synthesis of 4-arylidene-3-phenylisoxazol-5-ones by the three-component reaction of hydroxylamine, ethyl benzoylacetate and aromatic aldehydes in the presence of DABCO in refluxing ethanol is reported.
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Synthesis and Characterization of Salicylate Derivatives of Dibutyl Sn(IV)-Ti(IV)-μ-Oxoisopropoxide
New Salicylate derivatives of organoheterobimetallic-μ-oxoisopropoxide [Bu2SnO2Ti2(OPri)6] have been synthesized by the thermal condensation of μ-oxoisopropoxide compound with different salicylates in different molar ratios (1:1-1:4) yielded the compounds of the type [Bu2SnO2Ti2(OPri)6-n(RSal)n]…
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Artikel Jurnal
Removal of Acid Green 25 from Aqueous Solution by Adsorption
The adsorptive removal of Acid Green 25 by Ananas Comosus (L) Activated carbon was investigated in this study. The effects of initial dye concentration, contact time, pH and temperature were studied for the adsorption of Acid Green 25 in batch mode. At 100 mg/L of initial dye concentration the…
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GCMS Determination of Organochlorine Pesticides (OCPs) in Fish from River Cauvery and Veeranam Lake
Organochlorine Pesticides (OCPs) were analyzed using Gas Chromatography-Mass Spectrometer (Selective Ion Monitoring mode) in the muscle tissues of five fish species such as O. mossambicus, L. parsia, E. suretensis, C. striata and S. wynaadensis from seven locations of River Cauvery and one location…
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Artikel Jurnal
Liquid Chromatographic Method for the Analysis of Brimonidine in Ophthalmic Formulations
A reverse phase LC method was developed for the determination of Brimonidine in eye drops. Chromatography was carried on an Inertsil ODS 3V column (C18) using a mixture of Octane 1- sulfonic acid sodium salt (0.02M) (pH 3.5 ± 0.05) and acetonitrile (64:36 v/v) as mobile phase at a flow rate of 1…
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Micellar Liquid Chromatography for the Determination of Some Less Prescribed Benzodiazepines
A simple chromatographic procedure is reported for the determination of some less prescribed but equally important benzodiazepines (Clotiazepam, clozapine and pinazepam) in serum. The optimization studies have been made in CN, C18 and C8 columns, using mobile phase containing sodium dodecyl…
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Evaluation of Nano-Fe3O4 as a Green Catalyst for the Synthesis of Mono, bis and tris Diindolyl Methanes
Fast and clean synthesis of mono, bis and tris diindolylmethanes from various aldehydes and indoles in the presence of an efficient reusable catalyst, nano-Fe3O4, in high yield and short reaction time is reported.
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A New Approach to the RP-HPLC Method for Simultaneous Estimation of Atorvastatin Calcium and Fenofibrate in Pharmaceutical Dosage Forms
The present manuscript describes the development and validation of an isocratic reverse phase high-performance liquid chromatographic (RP-HPLC) method for the estimation of Atorvastatin calcium and Fenofibrate in raw material and tablet. Atorvastatin Calcium, Fenofibrate and Diclofenac (internal…
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Chromatographic Separation of Heavy Metal Cations on a Silica Gel-G with Amino Acid
Thin layer chromatographic method has been developed for the separation of metal ions such as Cr(VI), Cr(III), As(III), Cd(II), Tl(III) and Hg(II) from their two, three and four component mixtures. The separations were performed on thin layer of silica gel ‘G’ using aqueous l-Alanine as mobile…
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Artikel Jurnal
Experimental and Theoretical Studies of Ultrasonic Velocity in Binary Liquid Mixtures of Ethyl benzoate
Ultrasonic velocity is measured at 2MHz frequency in the binary mixtures of Ethyl Benzoate with 1-Propanol, 1-Butanol, 1-Pentanol and theoretical values of ultrasonic velocity have been evaluated at 303K using Nomoto's relation, Impedance relation, Ideal mixture relation, Junjie's method and free…
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Artikel Jurnal
Zr(HSO4)4: An Efficient Catalyst for the Synthesis of 3-(2'- Benzothiazolyl)-2,3-dihydroquinazolin- 4(1H)-ones
A simple and efficient synthesis of 3-(2'-benzothiazolyl)-2,3-dihydro quinazolin-4(1H)- ones has been accomplished by the one-pot condensation of isatoic anhydride, aldehyde and 2-aminobenzothiazole under solvent-free conditions in the presence of Zr(HSO4)4.
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Artikel Jurnal
Review on Analytical and Biological Applications of Hydrazones and their Metal Complexes
Hydrazones are very important group of analytical regents for the determination of various metal ions by using various analytical techniques. Besides this use of hydrazones are also having biological activities also. In this paper we first discussed about the chemical nature of hydrazones and their…
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Artikel Jurnal
1,3-Dibromo 5,5-dimethylhydantoin (DBH)-Catalyzed Solvent-Free Synthesis of 2-arylbenzimidazoles under Microwave Irradiation
An expeditious synthesis of 2-aryl-benzimidazoles by the condensation of o-phenylenediamine with various arylaldehydes is described. This greener protocol is catalyzed by 1,3-Dibromo 5,5-dimethylhydantoin (DBH), and proceeds efficiently in the absence of any organic solvent under thermal condition…
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Bismuth Basic Nitrate as a Novel Adsorbent for Azo Dye Removal
Bismuth basic nitrate (BBN) and its TiO2-Ag modified sorbent, PTBA were successfully synthesized via a precipitation method. The structural characteristics of prepared sorbents were determined through different analytical techniques. The potential use of prepared sorbents for organic compounds'…
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Artikel Jurnal
Study of Activated Carbons by Pyrolysis of Mangifera Indica Seed (Mango) in Presence of Sodium and Potassium Hydroxide
Activated carbons (ACs) were prepared by pyrolysis of seeds mango in presence of sodium and potassium hydroxide (chemical activities). Seeds mango from Colombian Mango cultives were impregnated with aqueous solutions of NaOH and KOH following a variant of the incipient wetness method. Different…
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Optimisation of Graft Copolymerisation of Fibres from Banana Trunk
Sheets from banana trunks were opened out and dried for several weeks in air. Pulp was obtained by the nitric acid process with a yield of 37.7% while fibres were obtained according to the modified standard Japanese method for cellulose in wood for pulp (JIS 8007) with a yield of 65% with respect…
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Artikel Jurnal
A Validated RP-HPLC Method for the Determination of Citrinin in Xuezhikang Capsule and other Monascus-Fermented Products
Citrinin is a toxic product usually produced during the Monascus fermentation. The presence of citrinin in xuezhikang capsule has been a concern due to its ingredient which is derived from monascus-fermented rice. A rapid and sensitive RP-HPLC method with fluorescence detection at λex = 331 nm and…
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