کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
226743 | 464802 | 2015 | 4 صفحه PDF | دانلود رایگان |
• An in-syringe ionic liquid-based single step microextraction procedure has been developed.
• Method avoids usage of lethal organic solvents, thermal dispersion and especially centrifugation step.
• 1-butyl-3-methylimidazolium hexafluorophosphate [C4mim][PF6] was used as an extractant.
• The method was satisfactorily applied to preconcentration of Cd in real samples.
An in-syringe ionic liquid-based single step microextraction has been analytically presented. 1-butyl-3-methylimidazolium hexafluorophosphate as extractant and Triton X-100 as dispersing medium were used. Cd-Dithizone was extracted within a syringe. The effects of some variables such as [C4mim][PF6] volume, pH, TX-100 volume, dithizone concentration, incubation time, diluents nature and matrix effect were investigated. The limit of detection and preconcentration factor were found as 0.35 μg L−1 and 50, respectively. The validity was checked by using certified reference materials. The relative standard deviation (RSD) was 4.2%. The method was satisfactorily applied to preconcentration of cadmium in natural water samples.
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Journal: Journal of Industrial and Engineering Chemistry - Volume 27, 25 July 2015, Pages 149–152