A new approach for a cloud point extraction-electrothermal atomic absorption spectrometric method was used for determining bismuth. The aqueous analyte was acidified with sulfuric acid (pH 3.0–3.5). Triton X-114 was added as a surfactant and 2-amino-cyclopentene-1-dithiocarboxylic acid was used as a complexing agent. After phase separation at 50 â—¦C based on the cloud point separation of the mixture, the surfactant-rich phasen was diluted using tetrahydrofuran (THF). Twenty microliters (20 μL) of the enriched solution and 10 µl of 0.1% (w/v) Pd (NO3)2 as chemical modifier were dispersed into the graphite tube and the analyte was determined by electrothermal atomic absorption spectrometry. After optimizing extraction conditions and instrumental parameters, a preconcentration factor of 195 was obtained for a sample of only 10 mL. The detection limit was 0.04 ng ml−1 and the analytical curve was linear for the concentration range of 0.04–0.70 ng mL−1. Relative standard deviations were <5%. The method was successfully applied for the extraction and determination of bismuth in water samples.Â
Moghimi, A. (2012). Extraction of Ultra Trace Amounts Bismuth in Water Samples Using Cloud Point Extraction with 2-Amino-Cyclopentene-1-Dithiocarboxylic Acid. Journal of Chemical Health Risks, 2(1), -. doi: 10.22034/jchr.2012.543985
MLA
A. Moghimi. "Extraction of Ultra Trace Amounts Bismuth in Water Samples Using Cloud Point Extraction with 2-Amino-Cyclopentene-1-Dithiocarboxylic Acid". Journal of Chemical Health Risks, 2, 1, 2012, -. doi: 10.22034/jchr.2012.543985
HARVARD
Moghimi, A. (2012). 'Extraction of Ultra Trace Amounts Bismuth in Water Samples Using Cloud Point Extraction with 2-Amino-Cyclopentene-1-Dithiocarboxylic Acid', Journal of Chemical Health Risks, 2(1), pp. -. doi: 10.22034/jchr.2012.543985
VANCOUVER
Moghimi, A. Extraction of Ultra Trace Amounts Bismuth in Water Samples Using Cloud Point Extraction with 2-Amino-Cyclopentene-1-Dithiocarboxylic Acid. Journal of Chemical Health Risks, 2012; 2(1): -. doi: 10.22034/jchr.2012.543985