caa a22 4500 463218515 CHVBK 20180405153205.0 cr unu---uuuuu 170326e20070101xx s 000 0 eng 10.1134/S1061934807010091 doi (NATIONALLICENCE)springer-10.1134/S1061934807010091 Determination of cadmium in water samples by graphite furnace atomic absorption spectrometry after cloud point extraction [Elektronische Daten] [S. Xiao, J. Chen, X. Wu, Y. Miao] The formation of a complex with 2-(5-brom-2-pyridylazo)-5-(diethylamino)-phenol (5-Br-PADAP) and cloud point extraction have been applied to the preconcentration of cadmium followed by its determination by graphite furnace atomic absorption spectrometry (GFAAS) using octylphenoxypolyethoxyethanol (TritonX-114) as surfactant. The chemical variables affecting the separation were optimized. At pH 7.0, preconcentration of only 10 mL of sample in the presence of 0.05% TritonX-114 and 2.5 × 10−6 M 5-Br-PADAP enabled the detection of 0.04 μg/L cadmium. The enrichment factor was 21 for cadmium. The regression equation was A = 0.0439C(μg/L) + 7.2 × 10−3. The correlation coefficient was 0.9995. The precision for 10 replicate determinations at 10 μg/L Cd was 2.7% relative standard deviation (RSD). The proposed method has been applied to the determination of cadmium in water samples. Pleiades Publishing, Ltd., 2007 Xiao S. Jinhua College of Profession and Technology, 321017, Jinhua, Zhejinag, China aut Chen J. College of Chemistry and Life Science, Zhejiang Normal University, 321004, Jinhua, Zhejiang, China aut Wu X. College of Chemistry and Life Science, Zhejiang Normal University, 321004, Jinhua, Zhejiang, China aut Miao Y. College of Chemistry and Life Science, Zhejiang Normal University, 321004, Jinhua, Zhejiang, China aut Journal of Analytical Chemistry Nauka/Interperiodica 62/1(2007-01-01), 42-45 1061-9348 62:1<42 2007 62 10809 https://doi.org/10.1134/S1061934807010091 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1061934807010091 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Xiao S. Jinhua College of Profession and Technology, 321017, Jinhua, Zhejinag, China aut NATIONALLICENCE 700 1- Chen J. College of Chemistry and Life Science, Zhejiang Normal University, 321004, Jinhua, Zhejiang, China aut NATIONALLICENCE 700 1- Wu X. College of Chemistry and Life Science, Zhejiang Normal University, 321004, Jinhua, Zhejiang, China aut NATIONALLICENCE 700 1- Miao Y. College of Chemistry and Life Science, Zhejiang Normal University, 321004, Jinhua, Zhejiang, China aut NATIONALLICENCE 773 0- Journal of Analytical Chemistry Nauka/Interperiodica 62/1(2007-01-01), 42-45 1061-9348 62:1<42 2007 62 10809 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer