A gas-diffusion flow injection method coupled with online solid-liquid extraction for the determination of ammonium in solid samples

I.I. Timofeeva, A.V. Bulatov, A.L. Moskvin, S.D. Kolev

Research output

12 Citations (Scopus)

Abstract

© 2015 Elsevier B.V. All rights reserved.A simple, rapid and reliable gas-diffusion flow injection (GD-FI) method for ammonium determination in building materials has been developed. It is based on leaching ammonium from a ground solid sample into an alkaline solution with subsequent ammonia gas generation. Ammonia is then transported in a nitrogen stream to the GD cell of the FI system where it is absorbed into its acceptor solution containing a mixture of the acid-base indicators cresol red and thymol blue. The maximum increase in the absorbance of the acceptor solution at 580 nm is related to the ammonium concentration in the solid sample. The proposed method is characterized by a linear concentration range of 0.1-5.0 mg NH4+ kg-1, a limit of detection of 8 μg NH4+ kg-1 and a sample throughput of 10 h-1. A successful application of this method for the determination of ammonium in building materials such as concrete, cement and sand is reported.
Original languageEnglish
Pages (from-to)140-144
JournalTalanta
DOIs
Publication statusPublished - 2015

Fingerprint

Diffusion in gases
Ammonium Compounds
Gases
Injections
Liquids
Ammonia
Leaching
Limit of Detection
Cements
Nitrogen
Sand
Throughput
Concretes
Acids

Cite this

@article{dbf2fe0e21004ad59ea94fb4b36fc4aa,
title = "A gas-diffusion flow injection method coupled with online solid-liquid extraction for the determination of ammonium in solid samples",
abstract = "{\circledC} 2015 Elsevier B.V. All rights reserved.A simple, rapid and reliable gas-diffusion flow injection (GD-FI) method for ammonium determination in building materials has been developed. It is based on leaching ammonium from a ground solid sample into an alkaline solution with subsequent ammonia gas generation. Ammonia is then transported in a nitrogen stream to the GD cell of the FI system where it is absorbed into its acceptor solution containing a mixture of the acid-base indicators cresol red and thymol blue. The maximum increase in the absorbance of the acceptor solution at 580 nm is related to the ammonium concentration in the solid sample. The proposed method is characterized by a linear concentration range of 0.1-5.0 mg NH4+ kg-1, a limit of detection of 8 μg NH4+ kg-1 and a sample throughput of 10 h-1. A successful application of this method for the determination of ammonium in building materials such as concrete, cement and sand is reported.",
author = "I.I. Timofeeva and A.V. Bulatov and A.L. Moskvin and S.D. Kolev",
year = "2015",
doi = "10.1016/j.talanta.2015.04.051",
language = "English",
pages = "140--144",
journal = "Talanta",
issn = "0039-9140",
publisher = "Elsevier",

}

TY - JOUR

T1 - A gas-diffusion flow injection method coupled with online solid-liquid extraction for the determination of ammonium in solid samples

AU - Timofeeva, I.I.

AU - Bulatov, A.V.

AU - Moskvin, A.L.

AU - Kolev, S.D.

PY - 2015

Y1 - 2015

N2 - © 2015 Elsevier B.V. All rights reserved.A simple, rapid and reliable gas-diffusion flow injection (GD-FI) method for ammonium determination in building materials has been developed. It is based on leaching ammonium from a ground solid sample into an alkaline solution with subsequent ammonia gas generation. Ammonia is then transported in a nitrogen stream to the GD cell of the FI system where it is absorbed into its acceptor solution containing a mixture of the acid-base indicators cresol red and thymol blue. The maximum increase in the absorbance of the acceptor solution at 580 nm is related to the ammonium concentration in the solid sample. The proposed method is characterized by a linear concentration range of 0.1-5.0 mg NH4+ kg-1, a limit of detection of 8 μg NH4+ kg-1 and a sample throughput of 10 h-1. A successful application of this method for the determination of ammonium in building materials such as concrete, cement and sand is reported.

AB - © 2015 Elsevier B.V. All rights reserved.A simple, rapid and reliable gas-diffusion flow injection (GD-FI) method for ammonium determination in building materials has been developed. It is based on leaching ammonium from a ground solid sample into an alkaline solution with subsequent ammonia gas generation. Ammonia is then transported in a nitrogen stream to the GD cell of the FI system where it is absorbed into its acceptor solution containing a mixture of the acid-base indicators cresol red and thymol blue. The maximum increase in the absorbance of the acceptor solution at 580 nm is related to the ammonium concentration in the solid sample. The proposed method is characterized by a linear concentration range of 0.1-5.0 mg NH4+ kg-1, a limit of detection of 8 μg NH4+ kg-1 and a sample throughput of 10 h-1. A successful application of this method for the determination of ammonium in building materials such as concrete, cement and sand is reported.

U2 - 10.1016/j.talanta.2015.04.051

DO - 10.1016/j.talanta.2015.04.051

M3 - Article

SP - 140

EP - 144

JO - Talanta

JF - Talanta

SN - 0039-9140

ER -