Uptake of cadmium by synthetic mica and apatite: Observation by micro-PIXE

Naofumi Kozai; Toshihiko Ohnuki; Sridhar Komarneni; Tomihiro Kamiya; Takuro Sakai; Masakazu Oikawa; Takahiro Satoh

doi:10.1016/S0168-583X(03)01088-7

Uptake of cadmium by synthetic mica and apatite: Observation by micro-PIXE

Naofumi Kozai, Toshihiko Ohnuki, Sridhar Komarneni, Tomihiro Kamiya, Takuro Sakai, Masakazu Oikawa, Takahiro Satoh

Research output: Contribution to journal › Conference article › peer-review

9 Scopus citations

Abstract

This study investigated the uptake of Cd by a mixture containing equal mass of two powerful sorbents for Cd, a synthetic mica named 'Na-4-mica' and an apatite, by micro-particle-induced X-ray emission (micro-PIXE) analysis. Divalent Cd ions were found to be selectively taken up by the apatite from the mixture even though it has one order of magnitude lower distribution coefficient for Cd²⁺ than Na-4-mica. This was mainly attributed to the fact that the kinetics of uptake by the apatite were more rapid than those by Na-4-mica. Regarding the uptake of Cd colloids containing hydroxides and carbonates, no clear selectivity for solid phases was observed and Cd colloids appeared to be preferentially taken up by smaller particles of solid phases.

Original language	English (US)
Pages (from-to)	513-518
Number of pages	6
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	210
DOIs	https://doi.org/10.1016/S0168-583X(03)01088-7
State	Published - Sep 2003
Event	8th International Conference on Nuclear Microprobe Technology - Takasaki, Japan Duration: Sep 8 2002 → Sep 13 2002

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Instrumentation

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10.1016/S0168-583X(03)01088-7

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title = "Uptake of cadmium by synthetic mica and apatite: Observation by micro-PIXE",

abstract = "This study investigated the uptake of Cd by a mixture containing equal mass of two powerful sorbents for Cd, a synthetic mica named 'Na-4-mica' and an apatite, by micro-particle-induced X-ray emission (micro-PIXE) analysis. Divalent Cd ions were found to be selectively taken up by the apatite from the mixture even though it has one order of magnitude lower distribution coefficient for Cd2+ than Na-4-mica. This was mainly attributed to the fact that the kinetics of uptake by the apatite were more rapid than those by Na-4-mica. Regarding the uptake of Cd colloids containing hydroxides and carbonates, no clear selectivity for solid phases was observed and Cd colloids appeared to be preferentially taken up by smaller particles of solid phases.",

author = "Naofumi Kozai and Toshihiko Ohnuki and Sridhar Komarneni and Tomihiro Kamiya and Takuro Sakai and Masakazu Oikawa and Takahiro Satoh",

year = "2003",

month = sep,

doi = "10.1016/S0168-583X(03)01088-7",

language = "English (US)",

volume = "210",

pages = "513--518",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

publisher = "Elsevier B.V.",

note = "8th International Conference on Nuclear Microprobe Technology ; Conference date: 08-09-2002 Through 13-09-2002",

}

TY - JOUR

T1 - Uptake of cadmium by synthetic mica and apatite

T2 - 8th International Conference on Nuclear Microprobe Technology

AU - Kozai, Naofumi

AU - Ohnuki, Toshihiko

AU - Komarneni, Sridhar

AU - Kamiya, Tomihiro

AU - Sakai, Takuro

AU - Oikawa, Masakazu

AU - Satoh, Takahiro

PY - 2003/9

Y1 - 2003/9

N2 - This study investigated the uptake of Cd by a mixture containing equal mass of two powerful sorbents for Cd, a synthetic mica named 'Na-4-mica' and an apatite, by micro-particle-induced X-ray emission (micro-PIXE) analysis. Divalent Cd ions were found to be selectively taken up by the apatite from the mixture even though it has one order of magnitude lower distribution coefficient for Cd2+ than Na-4-mica. This was mainly attributed to the fact that the kinetics of uptake by the apatite were more rapid than those by Na-4-mica. Regarding the uptake of Cd colloids containing hydroxides and carbonates, no clear selectivity for solid phases was observed and Cd colloids appeared to be preferentially taken up by smaller particles of solid phases.

AB - This study investigated the uptake of Cd by a mixture containing equal mass of two powerful sorbents for Cd, a synthetic mica named 'Na-4-mica' and an apatite, by micro-particle-induced X-ray emission (micro-PIXE) analysis. Divalent Cd ions were found to be selectively taken up by the apatite from the mixture even though it has one order of magnitude lower distribution coefficient for Cd2+ than Na-4-mica. This was mainly attributed to the fact that the kinetics of uptake by the apatite were more rapid than those by Na-4-mica. Regarding the uptake of Cd colloids containing hydroxides and carbonates, no clear selectivity for solid phases was observed and Cd colloids appeared to be preferentially taken up by smaller particles of solid phases.

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U2 - 10.1016/S0168-583X(03)01088-7

DO - 10.1016/S0168-583X(03)01088-7

M3 - Conference article

AN - SCOPUS:0041511912

SN - 0168-583X

VL - 210

SP - 513

EP - 518

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

Y2 - 8 September 2002 through 13 September 2002

ER -

Uptake of cadmium by synthetic mica and apatite: Observation by micro-PIXE

Abstract

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