Research output: Contribution to journal › Article
Automated procedure for determination of ammonia in concrete with headspace single-drop micro-extraction by stepwise injection spectrophotometric analysis. / Timofeeva, I.; Khubaibullin, I.; Kamencev, M.; Moskvin, A.; Bulatov, A.
In: Talanta, Vol. 133, 2015, p. 34-37.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Automated procedure for determination of ammonia in concrete with headspace single-drop micro-extraction by stepwise injection spectrophotometric analysis
AU - Timofeeva, I.
AU - Khubaibullin, I.
AU - Kamencev, M.
AU - Moskvin, A.
AU - Bulatov, A.
PY - 2015
Y1 - 2015
N2 - A novel automatic stepwise injection headspace single-drop micro-extraction system is proposed as a versatile approach for automated determination of volatile compounds. The system application is demonstrated for ammonia determination in concrete samples. An ammonia gas was produced from ammonium ions and extracted on-line into 5 μL 0.1 M H3PO4 to eliminate the interference effect of concrete species on the ammonia stepwise injection spectrophotometric determination. The linear range was 0.1 to 1 mg kg−1 with LOD 30 µg kg−1. The sample throughput was 4 h−1. This system has been successfully applied for the determination of ammonia in concretes..
AB - A novel automatic stepwise injection headspace single-drop micro-extraction system is proposed as a versatile approach for automated determination of volatile compounds. The system application is demonstrated for ammonia determination in concrete samples. An ammonia gas was produced from ammonium ions and extracted on-line into 5 μL 0.1 M H3PO4 to eliminate the interference effect of concrete species on the ammonia stepwise injection spectrophotometric determination. The linear range was 0.1 to 1 mg kg−1 with LOD 30 µg kg−1. The sample throughput was 4 h−1. This system has been successfully applied for the determination of ammonia in concretes..
U2 - 10.1016/j.talanta.2014.04.081
DO - 10.1016/j.talanta.2014.04.081
M3 - Article
VL - 133
SP - 34
EP - 37
JO - Talanta
JF - Talanta
SN - 0039-9140
ER -
ID: 3926571