caa a22 4500 463219023 CHVBK 20180405153206.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1134/S1061934807090079 doi (NATIONALLICENCE)springer-10.1134/S1061934807090079 Determination of copper(II) in various samples by flame atomic absorption spectrophotometry after column preconcentration onto pulverized Amberlite XAD-4 loaded with N-benzoylphenylhydroxylamine [Elektronische Daten] [Y. Lee, H. Choi] A sensitive technique for the determination of trace Cu(II) in various samples after column preconcentration by adsorbing onto pulverized Amberlite XAD-4 loaded with N-benzoylphenylhydroxylamine (BPHA) was developed. Several experimental conditions, such as the size of XAD-4, adsorption flow rate, pH of sample solution, and so forth, were optimized. The interfering effects of diverse concomitant ions were investigated. Al(III), Fe(III), Ni(II), and Co(II) interfered, but the interference by these ions was completely eliminated by adjusting the amount of XAD-4-BPHA resin to 0.30 g. The dynamic range, the correlation coefficient (R2), and the detection limit obtained by the proposed technique were 1.0-60, 0.9953, and 0.83 ng/mL, respectively. For validating the technique, the aqueous samples (stream water, reservoir water, and wastewater), the diluted brass sample, and the plastic sample were used as real samples. Recovery yields of 94-102% were obtained. These measured data were not different from ICP-MS data at the 95% confidence level. This method was also validated by rice flour CRM (normal, fortified) samples. Based on the results of the experiment, it has been found that the proposed technique can be applied to the determination of Cu(II) in various real samples. Pleiades Publishing, Ltd., 2007 Lee Y. Department of Chemistry, The University of Suwon, 445-743, Hwaseong-si, Gyeonggi-do, Korea aut Choi H. Department of Chemistry, The University of Suwon, 445-743, Hwaseong-si, Gyeonggi-do, Korea aut Journal of Analytical Chemistry Nauka/Interperiodica 62/9(2007-09-01), 845-851 1061-9348 62:9<845 2007 62 10809 https://doi.org/10.1134/S1061934807090079 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1061934807090079 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lee Y. Department of Chemistry, The University of Suwon, 445-743, Hwaseong-si, Gyeonggi-do, Korea aut NATIONALLICENCE 700 1- Choi H. Department of Chemistry, The University of Suwon, 445-743, Hwaseong-si, Gyeonggi-do, Korea aut NATIONALLICENCE 773 0- Journal of Analytical Chemistry Nauka/Interperiodica 62/9(2007-09-01), 845-851 1061-9348 62:9<845 2007 62 10809 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer