نتایج جستجو برای: k2cr2o7

تعداد نتایج: 127  

2013
Z. Kh. Jeber

This study conducted to investigate the effects of Potassium Dichromate (K2Cr2O7) and Turmeric Oil (TO) on reproductive efficiency of adult male rats. Twenty four male rats aged 100 days divided randomly into 4 groups. G1 received 1 ml of dimethyle sulfoxide (DMSO) 5% orally as control, G2 received K2Cr2O7 (24 mg/kg orally), G3 received TO dissolve in DMSO 5% (8.5 mg/kg orally) and G4 received ...

2016
Mujgan Cengiz Nurnisa Oya Alansal Matem Tuncdemir Gamze Tanriverdi Burcu Bayoglu

OBJECTIVE The aim of this study is to investigate the possible protective effects of melatonin and caffeic acid phenethyl ester (CAPE) on potassium dichromate (K2 Cr2O7)-induced nephrotoxicity and genotoxicity. METHODS A total of 40 Wistar albino rats were divided into five groups: control, K2Cr2O7(K2Cr2O715 mg/kg, one dose, i.p.), K2Cr2O7 + melatonin, K2Cr2O7 + CAPE, and K2Cr2O7 + melatonin ...

2013
Wylly Ramsés García-Niño Edilia Tapia Cecilia Zazueta Zyanya Lucía Zatarain-Barrón Rogelio Hernández-Pando Claudia Cecilia Vega-García José Pedraza-Chaverrí

Curcumin is a polyphenol derived from turmeric with recognized antioxidant properties. Hexavalent chromium is an environmental toxic and carcinogen compound that induces oxidative stress. The objective of this study was to evaluate the potential protective effect of curcumin on the hepatic damage generated by potassium dichromate (K2Cr2O7) in rats. Animals were pretreated daily by 9-10 days wit...

2014
Paulo P. Borges

Inicialmente, para adquirir experiência na determinação coulométrica da pureza do dicromato, realizou-se uma comparação bilateral entre os institutos nacionais de metrologia (INM) do Brasil e da Rússia. Em seguida, objetivando comparar os resultados das medições do dicromato de potássio (K2Cr2O7) entre os INM que utilizam a coulometria com elevada precisão para certificar materiais de referênci...

2011
G Dong Y Zhu Y Zhang H Shan J Xu S Xin

Accepted: May 25, 2011; Published: August 30, 2011 Abstract The adsorption and transformation of K2Cr2O7 at natural hermit crab shell powder was studied by UV-visible spectrophotometry. K2Cr2O7 is adsorbed at natural hermit crab shell powder, and follows the Freundlich adsorption model with the adsorption constant of KF=888.8 and adsorption free energy change of 16.83 kJ.mol . The adsorbed K2Cr...

2012
Z. Kh. Jeber

This study carried out to understand the effects of Potassium Dichromate (K2Cr2O7) and Turmeric Oil (TO) on reproductive efficiency. Twenty four weanling immature female albino rats aged 22 day divided randomly into 4 groups (6 rats in each group). 1 group received 0.1 ml dimethyle sulfoxide (DMSO) 5% solution as a control (I/P for 14 day), 2 group received K2Cr2O7 dissolved in distilled water ...

Journal: :Distilat: Jurnal Teknologi Separasi 2023

Tulang ayam pada dasarnya bisa dimanfaatkan menjadi adsorben karena memiliki kandungan hidroksiapatit. Hidroksiapatit ini dapat dijadikan sebagai untuk pengolahan air limbah, banyak dan mudah diperbarui. Tujuan peneltitan megetahui jenis aktivator HCl NaOH terhadap kemampuan adsorpsi ion logam kromium dari larutan K2Cr2O7, mengetahui pengaruh lama waktu aktivasi atau perendaman serta perbedaan ...

2014
J. Chandhuru S. Harshitha K. Sujitha Mukesh Kumar

The ability of Bacillus sp. MRKV isolated from tannery effluent which shows resistant towards hexavalent chromium potassium dichromate (K2Cr2O7) was evaluated in this study. The bacterial strain was assayed for its reducing ability towards K2Cr2O7. The study revealed that the isolated strain has the ability to reduce the hexavalent chromium and the optimal conditions required for the chromium r...

2010
Rogério Adelino de Sousa Éder Tadeu Gomes Cavalheiro

A potentiometric titration method for the determination of minoxidil based on its redox reaction with K2Cr2O7 is described. The best results were observed using 1.00 x 10-3 mol L-1 K2Cr2O7 and 1.00 x 10-2 mol L-1 minoxidil solutions, and the minoxidil as titrant in 2.00 mol L-1 H2SO4 medium. The method was applied to commercial samples and compared with the results from a chromatographic proced...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2002
Renata Krupa Marcin Stañczak Zofia Walter

The objective of this study was to examine the effect of Cr(III) (chromium chloride) and Cr(VI) (potassium dichromate) on RNA and DNA-chromium adducts formation in isolated nucleic acids and isolated pig lymphocytes. The incubation of cells with potassium dichromate and chromium chloride at concentrations of 10 and 100 microM results in binding of a 1.2-1.9 fold greater number of chromium atoms...

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