Sequential injection system exploring the standard addition method for phosphate determination in high salinity samples: interstitial, transitional and coastal waters

• Type: Article in International Scientific Journal
• Date: 2012

Authors

Ribeiro Mesquita, RBR (Author) Other; Santos, IC (Author) Other; Adriano Bordalo (Author) ICBAS; Santos Silva Rangel, AOSS (Author) Other

Journal

Title: Analytical Methods

Vol. 4

Pages: 1452-1457

ISSN: 1759-9660

Publisher: Royal Society of Chemistry

Indexing

ISI Web of Knowledge - 3 Citations

Scopus - 3 Citations

Other information

Authenticus ID: P-002-AK6

DOI: 10.1039/c2ay05792a

Abstract (EN): 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 mu mol P L-1 and LOQ of 1.1 mu mol P L-1 with a sample consumption of 125 mu L. A determination rate of about 30 h(-1) was obtained, and the developed method was effectively applied to interstitial, transitional and coastal waters.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6