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A. Makishima and E. Nakamura, “Precise Isotopic De- termination of Hf and Pb at Sub-Nano Gram Levels by MC-ICPMS Employing a Newly Designed Sample Cone and a Pre-Amplifier with a 1012 Ohm Register,” Journal of Analytical Atomic Spectrometry, Vol. 25, No. 11, 2010, pp. 1712-1716. http://dx.doi.org/10.1039/c0ja00015a

has been cited by the following article:

• TITLE: A Simple and Fast Separation Method of Fe Employing Extraction Resin for Isotope Ratio Determination by Multicollector ICP-MS

  AUTHORS: Akio Makishima

  KEYWORDS: Fe Separation; Fe Isotope Ratio; Multicollector Inductively Coupled Plasma Source Mass Spectrometry

  JOURNAL NAME: International Journal of Analytical Mass Spectrometry and Chromatography, Vol.1 No.2, December 31, 2013

  ABSTRACT: A new, simple and fast separation method for Fe using an extraction chromatographic resin, Aliquat 336 (commercially available as TEVA resin) has been developed. A one milliliter column containing 0.33 mL TEVA resin on 0.67 mL CG-71C was used.Iron was adsorbed with 6mol·L-1 HCl + H2O2 on TEVA resin, and recovered with 2 mol·L-1HNO3. The recovery yield and total blank were 93.5 ± 6.5% and 6 ng, respectively. Theseparation method is simple, and takes