Journal
ENVIRONMENTAL MONITORING AND ASSESSMENT
Volume 187, Issue 6, Pages -Publisher
SPRINGER
DOI: 10.1007/s10661-015-4568-5
Keywords
Solvent-assisted dispersive solid phase extraction; Water and food samples; Silver ions; Flame atomic absorption spectrometry
Categories
Ask authors/readers for more resources
In this research, a new sample treatment technique termed solvent-assisted dispersive solid phase extraction (SADSPE) was developed. The new method was based on the dispersion of the sorbent into the sample to maximize the contact surface. In this approach, the dispersion of the sorbent at a very low milligram level was achieved by injecting a mixture solution of the sorbent and disperser solvent into the aqueous sample. Thereby, a cloudy solution formed. The cloudy solution resulted from the dispersion of the fine particles of the sorbent in the bulk aqueous sample. After extraction, the cloudy solution was centrifuged and the enriched analytes in the sediment phase dissolved in ethanol and determined by FAAS. Under the optimized conditions, the detection limit for silver ions was 0.8 mu g L-1. The relative standard deviations for six separate extraction experiments for determination of 5 and 200 mu g L-1 of silver ions was 3.4 and 3.1 %. The preconcentration factor was found to be 61.7. SADSPE was successfully applied for trace determination of silver ions in water and food samples.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available