Abstract
Procedures for the iodometric solid-phase spectrophotometric determination of nitrite and selenium(IV) using a polymethacrylate matrix are proposed. The procedures are based on the reaction of nitrite and selenium(IV) with iodine in an acidic medium with the release of free iodine in amounts equivalent to those of the substances to be determined, extraction of the iodine formed with a polymethacrylate matrix, and measurement of absorbance of the matrix at 370 nm. The developed procedures ensure the determination of 0.01–0.12 mg/L of nitrite and 0.05–0.40 mg/L of selenium(IV) with limits of detection of 0.005 and 0.03 mg/L, respectively. It was shown that the proposed procedures can be applied to the determination of selenium(IV) in mineral water and nitrites in vegetables and soil.
| Original language | English |
|---|---|
| Pages (from-to) | 546-550 |
| Number of pages | 5 |
| Journal | Journal of Analytical Chemistry |
| Volume | 72 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1 May 2017 |
Fingerprint
Keywords
- iodometry
- nitrite
- polymethacrylate matrix
- selenium(IV)
- solid-phase spectrophotometry
ASJC Scopus subject areas
- Analytical Chemistry
Cite this
Solid-phase spectrophotometric iodometric determination of nitrite and selenium(IV) using a polymethacrylate matrix. / Gavrilenko, N. A.; Saranchina, N. V.; Fedan, D. A.; Gavrilenko, M. A.
In: Journal of Analytical Chemistry, Vol. 72, No. 5, 01.05.2017, p. 546-550.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Solid-phase spectrophotometric iodometric determination of nitrite and selenium(IV) using a polymethacrylate matrix
AU - Gavrilenko, N. A.
AU - Saranchina, N. V.
AU - Fedan, D. A.
AU - Gavrilenko, M. A.
PY - 2017/5/1
Y1 - 2017/5/1
N2 - Procedures for the iodometric solid-phase spectrophotometric determination of nitrite and selenium(IV) using a polymethacrylate matrix are proposed. The procedures are based on the reaction of nitrite and selenium(IV) with iodine in an acidic medium with the release of free iodine in amounts equivalent to those of the substances to be determined, extraction of the iodine formed with a polymethacrylate matrix, and measurement of absorbance of the matrix at 370 nm. The developed procedures ensure the determination of 0.01–0.12 mg/L of nitrite and 0.05–0.40 mg/L of selenium(IV) with limits of detection of 0.005 and 0.03 mg/L, respectively. It was shown that the proposed procedures can be applied to the determination of selenium(IV) in mineral water and nitrites in vegetables and soil.
AB - Procedures for the iodometric solid-phase spectrophotometric determination of nitrite and selenium(IV) using a polymethacrylate matrix are proposed. The procedures are based on the reaction of nitrite and selenium(IV) with iodine in an acidic medium with the release of free iodine in amounts equivalent to those of the substances to be determined, extraction of the iodine formed with a polymethacrylate matrix, and measurement of absorbance of the matrix at 370 nm. The developed procedures ensure the determination of 0.01–0.12 mg/L of nitrite and 0.05–0.40 mg/L of selenium(IV) with limits of detection of 0.005 and 0.03 mg/L, respectively. It was shown that the proposed procedures can be applied to the determination of selenium(IV) in mineral water and nitrites in vegetables and soil.
KW - iodometry
KW - nitrite
KW - polymethacrylate matrix
KW - selenium(IV)
KW - solid-phase spectrophotometry
UR - http://www.scopus.com/inward/record.url?scp=85018769511&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85018769511&partnerID=8YFLogxK
U2 - 10.1134/S1061934817030054
DO - 10.1134/S1061934817030054
M3 - Article
VL - 72
SP - 546
EP - 550
JO - Journal of Analytical Chemistry
JF - Journal of Analytical Chemistry
SN - 1061-9348
IS - 5
ER -