A solid phase extraction using a chelate resin immobilizing carboxymethylated pentaethylenehexamine for separation and preconcentration of trace elements in water samples

作者：Kagaya Shigehiro^*; Maeba Emiko; Inoue Yoshinori; Kamichatani Waka; Kajiwara Takehiro; Yanai Hideyuki; Saito Mitsuru; Tohda Koji

来源：Talanta, 2009, 79(2): 146-152.

DOI：10.1016/j.talanta.2009.03.016

• Solid phase extraction
• Chelate resin
• Carboxymethylated pentaethylenehexamine
• Separation and preconcentration
• Trace elements

A chelate resin immobilizing carboxymethylated pentaethylenehexamine (CM-PEHA resin) was prepared, and the potential for the separation and preconcentration of trace elements in water samples was evaluated through the adsorption/elution test for 62 elements. The CM-PEHA resin could quantitatively recover various elements, including Ag, Cd, Co, Cu, Fe, Ni, Pb, Ti, U, and Zn, and rare earth elements over a wide pH range, and also Mn at pH above 5 and V and Mo at pH below 7. This resin could also effectively remove major elements, such as alkali and alkaline earth elements, under acidic and neutral conditions. Solid phase extraction using the CM-PEHA resin was applicable to the determination of 10 trace elements, Cd, Co, Cu. Fe, Mn, Mo, Ni, Pb, V, and Zn, in certified reference materials (EnviroMAT EU-L-1 wastewater and ES-L-1 ground water) and treated wastewater and all elements except for Mn in surface seawater using inductively coupled plasma atomic emission spectrometry. The detection limits, defined as 3 times the standard deviation for the procedural blank using 500 mL of purified water (50-fold preconcentration, n = 8), ranged from 0.003 mu g L(-1) (Mn) to 0.28 mu g L(-1) (Zn) as the concentration in 500 mL of solution.

• 出版日期2009-7-15