Rapid Spectrophotometric Determination of Trace Amounts of Nitrate-Nitrogen Using Dapsone and α-Naphthol
A simple, rapid and sensitive spectrophotometric method has been developed for the trace determination of nitrite using Dapsone and α-Naphthol. The proposed method is based on the diazotization of Dapsone followed by coupling with α-Naphthol in sodium hydroxide medium to give an intense pink coloure...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2006-01-01
|
| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2006/945747 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850210131946504192 |
|---|---|
| author | Padmarajaiah Nagaraja Jainara S. Prakash Besagarahally L. Bhaskara |
| author_facet | Padmarajaiah Nagaraja Jainara S. Prakash Besagarahally L. Bhaskara |
| author_sort | Padmarajaiah Nagaraja |
| collection | DOAJ |
| description | A simple, rapid and sensitive spectrophotometric method has been developed for the trace determination of nitrite using Dapsone and α-Naphthol. The proposed method is based on the diazotization of Dapsone followed by coupling with α-Naphthol in sodium hydroxide medium to give an intense pink coloured azo dye. The dye shows absorption maximum at 540 nm. The molar absorptivity and Sandell’s sensitivity being 5.749 × 104 l mol-1 cm-1 and 0.24 ng cm-3 respectively. Tolerance limit for interfering ions and complexing agents were reported. Other analytical parameters and applications of the method for analysis of tap water, lake water, and industrial effluents have been investigated. |
| format | Article |
| id | doaj-art-9710a5e1522f4e85b7a5782bcfdf6242 |
| institution | OA Journals |
| issn | 0973-4945 2090-9810 |
| language | English |
| publishDate | 2006-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | E-Journal of Chemistry |
| spelling | doaj-art-9710a5e1522f4e85b7a5782bcfdf62422025-08-20T02:09:51ZengWileyE-Journal of Chemistry0973-49452090-98102006-01-013314615310.1155/2006/945747Rapid Spectrophotometric Determination of Trace Amounts of Nitrate-Nitrogen Using Dapsone and α-NaphtholPadmarajaiah Nagaraja0Jainara S. Prakash1Besagarahally L. Bhaskara2Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore-570 006, IndiaDepartment of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore-570 006, IndiaDepartment of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore-570 006, IndiaA simple, rapid and sensitive spectrophotometric method has been developed for the trace determination of nitrite using Dapsone and α-Naphthol. The proposed method is based on the diazotization of Dapsone followed by coupling with α-Naphthol in sodium hydroxide medium to give an intense pink coloured azo dye. The dye shows absorption maximum at 540 nm. The molar absorptivity and Sandell’s sensitivity being 5.749 × 104 l mol-1 cm-1 and 0.24 ng cm-3 respectively. Tolerance limit for interfering ions and complexing agents were reported. Other analytical parameters and applications of the method for analysis of tap water, lake water, and industrial effluents have been investigated.http://dx.doi.org/10.1155/2006/945747 |
| spellingShingle | Padmarajaiah Nagaraja Jainara S. Prakash Besagarahally L. Bhaskara Rapid Spectrophotometric Determination of Trace Amounts of Nitrate-Nitrogen Using Dapsone and α-Naphthol E-Journal of Chemistry |
| title | Rapid Spectrophotometric Determination of Trace Amounts of Nitrate-Nitrogen Using Dapsone and α-Naphthol |
| title_full | Rapid Spectrophotometric Determination of Trace Amounts of Nitrate-Nitrogen Using Dapsone and α-Naphthol |
| title_fullStr | Rapid Spectrophotometric Determination of Trace Amounts of Nitrate-Nitrogen Using Dapsone and α-Naphthol |
| title_full_unstemmed | Rapid Spectrophotometric Determination of Trace Amounts of Nitrate-Nitrogen Using Dapsone and α-Naphthol |
| title_short | Rapid Spectrophotometric Determination of Trace Amounts of Nitrate-Nitrogen Using Dapsone and α-Naphthol |
| title_sort | rapid spectrophotometric determination of trace amounts of nitrate nitrogen using dapsone and α naphthol |
| url | http://dx.doi.org/10.1155/2006/945747 |
| work_keys_str_mv | AT padmarajaiahnagaraja rapidspectrophotometricdeterminationoftraceamountsofnitratenitrogenusingdapsoneandanaphthol AT jainarasprakash rapidspectrophotometricdeterminationoftraceamountsofnitratenitrogenusingdapsoneandanaphthol AT besagarahallylbhaskara rapidspectrophotometricdeterminationoftraceamountsofnitratenitrogenusingdapsoneandanaphthol |