Determination of cadmium in water samples by liquid electrode plasma atomic emission spectrometry after solid phase extraction using a mini cartridge packed with chelate resin immobilizing carboxymethylated pentaethylenehexamine.

Shigehiro Kagaya, Saori Nakada, Yoshinori Inoue, Waka Kamichatani, Hideyuki Yanai, Mitsuru Saito, Tamotsu Yamamoto, Yuzuru Takamura, Koji Tohda

Index: Anal. Sci. 26(4) , 515-8, (2010)

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Abstract

Solid phase extraction using a mini cartridge packed with 22 mg of chelate resin immobilizing carboxymethylated pentaethylenehexamine was successfully utilized for separation/preconcentration of cadmium in water samples prior to liquid electrode plasma atomic emission spectrometric (LEP-AES) determination. The combined method with the extraction and LEP-AES was applicable to the determination of cadmium in the certified reference materials (EU-L-1 wastewater and ES-L-1 groundwater); the detection limit was 0.20 microg in 200 mL of sample solution (500-fold preconcentration).