Chromogenic Reagent System for Complexation of Nitrobenzene and its Application to Real Sample
Journal Title: International Journal of Research in Chemistry and Environment (IJRCE) - Year 2012, Vol 2, Issue 3
Abstract
A new sensitive analytical method for the determination of nitrobenzene is proposed. In this method, nitrobenzene is reduced in presence of Zn dust in acidic medium. The reduced nitrobenzene is then oxidized and subsequently coupled with phloroglucinol in alkaline medium. The red-purple color dye formed, shows an absorbance maxima at 450 nm. The reagent blank shows negligible absorbance in similar conditions. The color system obeyed Beer’s law in the range of 120 to 480 µg (12 to 48 mg L-1 ) nitrobenzene in 10 mL of final volume. . Molar Absorptivity and Sandell’S Sensitivity were found to be 2.1x103 L mol-1 cm-1 and 0.06 cm respectively. The Standard Deviation and Relative Standard Deviation were found to be ±0.003 and 1.41% respectively. Various reaction parameters like time, temperature, alkalinity and reagent concentration etc. also studied and have been optimized for the complete color reaction. To assess the applicability of the method, it has been applied successfully for the analysis of nitrobenzene in polluted water, vegetables and grains.
Authors and Affiliations
Anjum Ansari, Smita Joshi, Sulbha Amlathe
Keywords
Related Articles
- EP ID EP151670
- DOI -
- Views 102
- Downloads 0
Photosynthetic Bacteria Organic Wastewater Treatment: Effect of Anaerobic-Pretreatment
Effect of nutrients addition was determined in brewery wastewater with and without an initial anaerobic pretreatment. Non-pretreated Influent (10,000 mgl-1 COD) inoculated with a photo-bacterium named Z08 resulted in bac...
Land Evictions, Structural Conflicts and its implications on Urban Development in Sub-Saharan Africa Cities: Evidence from Dar Es Salaam Metropolitan-Tanzania
This paper centered on documenting why there are so many poorly managed and forced evictions in Dar es Salaam and its implications on sustainable urban growth and development. It considers both policies, legal and st...
[b] Organochlorine and Organophosphorous pesticides residues in Water of River Ganga at Bhagalpur, Bihar, India[/b]
[i]River Ganga along with its tributaries is the largest and also a very important river basin of India. The river Ganga, a holy river has over the years been subjected to tremendous pressure due to discharge of un...
[b] Change in Geotechnical Properties of High Plastic Soils on Exposure to Acid Rains of Varying Strength[/b]
[i] Acidification of rain caused by air pollutants like sulfur dioxide and oxides of nitrogen etc. reduces the pH as low as 3 to 4. The low H+ concentration of acid rain falling for a short duration may not affect s...
[b] Pre- and Post-Clearcutting Effects on Mass Loading and Leaching of Phosphorus and Carbon from Litterfall to Boreal Headwater Lakes[/b]
[i] Shoreline trees (predominantly black spruce, jack pine and white cedar) surrounding four boreal lakes located in northwestern Ontario, Canada were found to contribute an average of 0.3 + 0.1 (SD) kg ha-1 lake su...