Total reflection X-ray fluorescence analysis with chemical microchip

Kouichi Tsuji; Yousuke Hanaoka; Akihide Hibara; Manabu Tokeshi; Takehiko Kitamori

doi:10.1016/j.sab.2006.01.015

Total reflection X-ray fluorescence analysis with chemical microchip

Kouichi Tsuji, Yousuke Hanaoka, Akihide Hibara, Manabu Tokeshi, Takehiko Kitamori

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

A chemical microchip, which has a flat region on the surface, was recently designed for total reflection X-ray fluorescence (TXRF) analysis. A sample solution was introduced from an inlet by a microsyringe and flowed into a microchannel. Finally it overflowed from the well-type microchannel on the flat region. The sample solution on this region was dried, and then measured by TXRF. The TXRF spectra could be measured with a low background level. This preliminary result indicated that the edge of the well-type channel would not cause a serious problem for TXRF analysis. In addition, a good linear relationship was obtained for Zn Kα in Zn standard solution. This suggests that quantitative analysis by TXRF is feasible in combination with a chemical microchip.

Original language	English
Pages (from-to)	389-392
Number of pages	4
Journal	Spectrochimica Acta - Part B Atomic Spectroscopy
Volume	61
Issue number	4
DOIs	https://doi.org/10.1016/j.sab.2006.01.015
Publication status	Published - 2006 Apr
Externally published	Yes

Keywords

Chemical microchip
Microchannel
TXRF

ASJC Scopus subject areas

Analytical Chemistry
Atomic and Molecular Physics, and Optics
Instrumentation
Spectroscopy

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title = "Total reflection X-ray fluorescence analysis with chemical microchip",

abstract = "A chemical microchip, which has a flat region on the surface, was recently designed for total reflection X-ray fluorescence (TXRF) analysis. A sample solution was introduced from an inlet by a microsyringe and flowed into a microchannel. Finally it overflowed from the well-type microchannel on the flat region. The sample solution on this region was dried, and then measured by TXRF. The TXRF spectra could be measured with a low background level. This preliminary result indicated that the edge of the well-type channel would not cause a serious problem for TXRF analysis. In addition, a good linear relationship was obtained for Zn Kα in Zn standard solution. This suggests that quantitative analysis by TXRF is feasible in combination with a chemical microchip.",

keywords = "Chemical microchip, Microchannel, TXRF",

author = "Kouichi Tsuji and Yousuke Hanaoka and Akihide Hibara and Manabu Tokeshi and Takehiko Kitamori",

note = "Funding Information: This work was financially supported by the PRESTO-JST (Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency) project.",

year = "2006",

month = apr,

doi = "10.1016/j.sab.2006.01.015",

language = "English",

volume = "61",

pages = "389--392",

journal = "Spectrochimica Acta - Part B Atomic Spectroscopy",

issn = "0584-8547",

publisher = "Elsevier",

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T1 - Total reflection X-ray fluorescence analysis with chemical microchip

AU - Tsuji, Kouichi

AU - Hanaoka, Yousuke

AU - Hibara, Akihide

AU - Tokeshi, Manabu

AU - Kitamori, Takehiko

N1 - Funding Information: This work was financially supported by the PRESTO-JST (Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency) project.

PY - 2006/4

Y1 - 2006/4

N2 - A chemical microchip, which has a flat region on the surface, was recently designed for total reflection X-ray fluorescence (TXRF) analysis. A sample solution was introduced from an inlet by a microsyringe and flowed into a microchannel. Finally it overflowed from the well-type microchannel on the flat region. The sample solution on this region was dried, and then measured by TXRF. The TXRF spectra could be measured with a low background level. This preliminary result indicated that the edge of the well-type channel would not cause a serious problem for TXRF analysis. In addition, a good linear relationship was obtained for Zn Kα in Zn standard solution. This suggests that quantitative analysis by TXRF is feasible in combination with a chemical microchip.

AB - A chemical microchip, which has a flat region on the surface, was recently designed for total reflection X-ray fluorescence (TXRF) analysis. A sample solution was introduced from an inlet by a microsyringe and flowed into a microchannel. Finally it overflowed from the well-type microchannel on the flat region. The sample solution on this region was dried, and then measured by TXRF. The TXRF spectra could be measured with a low background level. This preliminary result indicated that the edge of the well-type channel would not cause a serious problem for TXRF analysis. In addition, a good linear relationship was obtained for Zn Kα in Zn standard solution. This suggests that quantitative analysis by TXRF is feasible in combination with a chemical microchip.

KW - Chemical microchip

KW - Microchannel

KW - TXRF

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