Development of an optical redox chemical sensor for nitrite determination
An optical chemical sensor for the determination of nitrite based on incorporating methyltrioctylammonium chloride as an anionic exchanger on the triacetylcellulose polymer has been reported. The response of the sensor is based on the redox reaction between nitrite in aqueous solution and iodide ads...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Química
2012-01-01
|
| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000400021&lng=en&tlng=en |
| _version_ | 1818020992962789376 |
|---|---|
| author | Saadat Rastegarzadeh Mehdi Kalantaripour |
| author_facet | Saadat Rastegarzadeh Mehdi Kalantaripour |
| author_sort | Saadat Rastegarzadeh |
| collection | DOAJ |
| description | An optical chemical sensor for the determination of nitrite based on incorporating methyltrioctylammonium chloride as an anionic exchanger on the triacetylcellulose polymer has been reported. The response of the sensor is based on the redox reaction between nitrite in aqueous solution and iodide adsorbed on sensing membrane using anion exchange phenomena. The sensing membrane reversibly responses to nitrite ion over the range of 6.52×10-6 - 8.70×10-5 mol L-1 with a detection limit of 6.05×10-7 mol L-1 (0.03 µg mL-1) and response time of 6 min. The relative standard deviation for eight replicate measurements of 8.70×10-6 and 4.34×10-5 mol L-1 of nitrite was 4.4 and 2.5 %, respectively. The sensor was successfully applied for determination of nitrite in food, saliva and water samples. |
| first_indexed | 2024-04-14T08:13:03Z |
| format | Article |
| id | doaj.art-99433fc38c0d44cda3ee735675419fd1 |
| institution | Directory Open Access Journal |
| issn | 1678-7064 |
| language | English |
| last_indexed | 2024-04-14T08:13:03Z |
| publishDate | 2012-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-99433fc38c0d44cda3ee735675419fd12022-12-22T02:04:30ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642012-01-0135476677010.1590/S0100-40422012000400021S0100-40422012000400021Development of an optical redox chemical sensor for nitrite determinationSaadat Rastegarzadeh0Mehdi Kalantaripour1Shahid Chamran UniversityShahid Chamran UniversityAn optical chemical sensor for the determination of nitrite based on incorporating methyltrioctylammonium chloride as an anionic exchanger on the triacetylcellulose polymer has been reported. The response of the sensor is based on the redox reaction between nitrite in aqueous solution and iodide adsorbed on sensing membrane using anion exchange phenomena. The sensing membrane reversibly responses to nitrite ion over the range of 6.52×10-6 - 8.70×10-5 mol L-1 with a detection limit of 6.05×10-7 mol L-1 (0.03 µg mL-1) and response time of 6 min. The relative standard deviation for eight replicate measurements of 8.70×10-6 and 4.34×10-5 mol L-1 of nitrite was 4.4 and 2.5 %, respectively. The sensor was successfully applied for determination of nitrite in food, saliva and water samples.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000400021&lng=en&tlng=enoptical sensornitritemethyltrioctylammonium chloride |
| spellingShingle | Saadat Rastegarzadeh Mehdi Kalantaripour Development of an optical redox chemical sensor for nitrite determination Química Nova optical sensor nitrite methyltrioctylammonium chloride |
| title | Development of an optical redox chemical sensor for nitrite determination |
| title_full | Development of an optical redox chemical sensor for nitrite determination |
| title_fullStr | Development of an optical redox chemical sensor for nitrite determination |
| title_full_unstemmed | Development of an optical redox chemical sensor for nitrite determination |
| title_short | Development of an optical redox chemical sensor for nitrite determination |
| title_sort | development of an optical redox chemical sensor for nitrite determination |
| topic | optical sensor nitrite methyltrioctylammonium chloride |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000400021&lng=en&tlng=en |
| work_keys_str_mv | AT saadatrastegarzadeh developmentofanopticalredoxchemicalsensorfornitritedetermination AT mehdikalantaripour developmentofanopticalredoxchemicalsensorfornitritedetermination |