Journal of Chromatography & Separation Techniques
Open Access

Sorption characteristics and ion chromatographic determination of phosphate ions in aqueous media by polyurethane foam chemically immobilized with gold nanoparticles

3^rd International Conference and Exhibition on Advances in Chromatography & HPLC Techniques

July 13-14, 2017 Berlin, Germany

H Alwael, Adel A AL-Malki, S O Bahaffi and M S El-Shahawi

King Abdulaziz University, Saudi Arabia

Posters & Accepted Abstracts: J Chromatogr Sep Tech

Abstract :

The present study reports the retention profile and separation of inorganic phosphate from aqueous media containing molybdate ions using gold nanoparticles (AuNPs) chemically treated polyurethane foams (PUFs) solid phase extractor. Kinetics, thermodynamic and sorption characteristics revealed excellent capacity of phosphate uptake and compared favorably with other conventional solid sorbents. Thus, AuNPs treated PUFs packed column was successfully used for deploying excellent ion chromatographic (IC) method for trace analysis of phosphate in water. The lower limit of detection (LOD) and quantification (LOQ) obtained were 0.045 and 0.15�¼g mLâ��1, respectively. A recovery percentage in the range (97%�±2.5%-102%�±1.2%) was successfully achieved. The method offers a simple, and sensitive system with short analytical time, coupled with good reproducibility and accuracy and it can be extended for analysis of picomolar level of phosphate in water via on-line preconcentration from large sample volumes onto PUFs packed column prior determination.

Biography :

Email: halwael@kau.edu.sa