Department of Chemistry, University of Yasouj, Yasouj, Islamic Republic of Iran.
Hum Exp Toxicol. 2013 Apr;32(4):371-8. doi: 10.1177/0960327112457188.
A solid phase extraction method for enrichment-separation and the determination of cobalt (Co(2+)), copper (Cu(2+)), nickel (Ni(2+)), zinc (Zn(2+)) and lead (Pb(2+)) ions in real samples has been proposed. The influences of some analytical parameters like pH, flow rate, eluent type and interference of matrix ions on recoveries of analytes were optimized. The limits of detection were found in the range of 1.6-3.9 µg L(-1), while preconcentration factor for all understudy metal ions were found to be 166 with loading half time (t 1/2) less than 10 min. The procedure was applied for the enrichment-separation of analyte ions in environmental samples with recoveries higher than 94.8% and relative SD <4.9% (N = 5).
提出了一种用于富集分离和测定实际样品中钴（Co(2+)）、铜（Cu(2+)）、镍（Ni(2+)）、锌（Zn(2+)）和铅（Pb(2+)）离子的固相萃取方法。优化了一些分析参数的影响，如 pH 值、流速、洗脱剂类型和基体离子的干扰对分析物回收率的影响。检测限范围为 1.6-3.9 µg L(-1)，而所有研究金属离子的预浓缩因子均为 166，加载半衰期（t 1/2）小于 10 min。该方法用于环境样品中分析物离子的富集分离，回收率高于 94.8%，相对标准偏差（SD）<4.9%（N = 5）。
