TY - JOUR
T1 - Sequential injection system exploring the standard addition method for phosphate determination in high salinity samples
T2 - interstitial, transitional and coastal waters
AU - Mesquita, Raquel Beatriz Ribeiro
AU - Santos, Inês Carvalho
AU - Bordalo, Adriano Agostinho
AU - Rangel, António Osmaro Santos Silva
PY - 2012/5
Y1 - 2012/5
N2 - A sequential injection system for phosphate determination within a wide concentration range was developed for water samples with high salinity levels. The determination is based on molybdenum blue chemistry using the standard addition quantification method. The detection system included a multi-reflective flow cell coupled to a light emitting diode, enabling the minimization of the schlieren effect. The developed system gave a LOD of 0.3 μmol P L -1 and LOQ of 1.1 μmol P L -1 with a sample consumption of 125 μL. A determination rate of about 30 h -1 was obtained, and the developed method was effectively applied to interstitial, transitional and coastal waters.
AB - A sequential injection system for phosphate determination within a wide concentration range was developed for water samples with high salinity levels. The determination is based on molybdenum blue chemistry using the standard addition quantification method. The detection system included a multi-reflective flow cell coupled to a light emitting diode, enabling the minimization of the schlieren effect. The developed system gave a LOD of 0.3 μmol P L -1 and LOQ of 1.1 μmol P L -1 with a sample consumption of 125 μL. A determination rate of about 30 h -1 was obtained, and the developed method was effectively applied to interstitial, transitional and coastal waters.
UR - http://www.scopus.com/inward/record.url?scp=84860727605&partnerID=8YFLogxK
U2 - 10.1039/c2ay05792a
DO - 10.1039/c2ay05792a
M3 - Article
AN - SCOPUS:84860727605
SN - 1759-9660
VL - 4
SP - 1452
EP - 1457
JO - Analytical Methods
JF - Analytical Methods
IS - 5
ER -