SPECTROPHOTOMETRIC REACTION RATE METHOD FOR THE DETERMINATION OF NITRITE BY CATALYTIC ACTION ON NILE BLUE A BROMATE REACTION
A kinetic method developed for the determination of ultra-trace amounts of nitrite based on its catalytic effect on the reaction between potassium bromate and Nile blue A in strongly acidic media is reported. The reaction was monitored spectrophotometrically by measuring the decrease in absorbance o...
Saved in:
| Format: | Article |
|---|---|
| Language: | English |
| Published: |
University of Tehran
1995-12-01
|
| Series: | Journal of Sciences, Islamic Republic of Iran |
| Online Access: | https://jsciences.ut.ac.ir/article_31263_aed05441ebdb9bfae7aced5f4615c799.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850268233804808192 |
|---|---|
| collection | DOAJ |
| description | A kinetic method developed for the determination of ultra-trace amounts of nitrite
based on its catalytic effect on the reaction between potassium bromate and Nile blue
A in strongly acidic media is reported. The reaction was monitored
spectrophotometrically by measuring the decrease in absorbance of Nile blue A at 645
nm by the fixed-time method. The decrease in absorbance during the first 0.5-3.0 min
of the reaction is related to the concentration of nitrite in the range of 0.002-0.500
µg.ml . The detection limit of 0.001 µg.ml was achieved for the nitrite ion. The
relative standard deviation for 0.0100 µg.ml nitrite is 1.0%. Most common anions
and cations did not interfere in the measurement. The procedure was successfully
applied for the determination of nitrite in natural water and salt |
| format | Article |
| id | doaj-art-48ca6ede3a4e42fb8bcd6b21ca28372a |
| institution | OA Journals |
| issn | 1016-1104 2345-6914 |
| language | English |
| publishDate | 1995-12-01 |
| publisher | University of Tehran |
| record_format | Article |
| series | Journal of Sciences, Islamic Republic of Iran |
| spelling | doaj-art-48ca6ede3a4e42fb8bcd6b21ca28372a2025-08-20T01:53:31ZengUniversity of TehranJournal of Sciences, Islamic Republic of Iran1016-11042345-69141995-12-016431263SPECTROPHOTOMETRIC REACTION RATE METHOD FOR THE DETERMINATION OF NITRITE BY CATALYTIC ACTION ON NILE BLUE A BROMATE REACTIONA kinetic method developed for the determination of ultra-trace amounts of nitrite based on its catalytic effect on the reaction between potassium bromate and Nile blue A in strongly acidic media is reported. The reaction was monitored spectrophotometrically by measuring the decrease in absorbance of Nile blue A at 645 nm by the fixed-time method. The decrease in absorbance during the first 0.5-3.0 min of the reaction is related to the concentration of nitrite in the range of 0.002-0.500 µg.ml . The detection limit of 0.001 µg.ml was achieved for the nitrite ion. The relative standard deviation for 0.0100 µg.ml nitrite is 1.0%. Most common anions and cations did not interfere in the measurement. The procedure was successfully applied for the determination of nitrite in natural water and salthttps://jsciences.ut.ac.ir/article_31263_aed05441ebdb9bfae7aced5f4615c799.pdf |
| spellingShingle | SPECTROPHOTOMETRIC REACTION RATE
METHOD FOR THE DETERMINATION OF
NITRITE BY CATALYTIC ACTION ON NILE
BLUE A BROMATE REACTION Journal of Sciences, Islamic Republic of Iran |
| title | SPECTROPHOTOMETRIC REACTION RATE
METHOD FOR THE DETERMINATION OF
NITRITE BY CATALYTIC ACTION ON NILE
BLUE A BROMATE REACTION |
| title_full | SPECTROPHOTOMETRIC REACTION RATE
METHOD FOR THE DETERMINATION OF
NITRITE BY CATALYTIC ACTION ON NILE
BLUE A BROMATE REACTION |
| title_fullStr | SPECTROPHOTOMETRIC REACTION RATE
METHOD FOR THE DETERMINATION OF
NITRITE BY CATALYTIC ACTION ON NILE
BLUE A BROMATE REACTION |
| title_full_unstemmed | SPECTROPHOTOMETRIC REACTION RATE
METHOD FOR THE DETERMINATION OF
NITRITE BY CATALYTIC ACTION ON NILE
BLUE A BROMATE REACTION |
| title_short | SPECTROPHOTOMETRIC REACTION RATE
METHOD FOR THE DETERMINATION OF
NITRITE BY CATALYTIC ACTION ON NILE
BLUE A BROMATE REACTION |
| title_sort | spectrophotometric reaction rate method for the determination of nitrite by catalytic action on nile blue a bromate reaction |
| url | https://jsciences.ut.ac.ir/article_31263_aed05441ebdb9bfae7aced5f4615c799.pdf |