Title:
METHOD AND APPARATUS FOR MEASURING BROMATE ION
Document Type and Number:
WIPO Patent Application WO/2013/190935
Kind Code:
A1
Abstract:
A method for measuring a bromate ion comprises a first step of allowing sample water to pass through an anion exchanger that can adsorb a bromate ion selectively, a second step of allowing a hydrochloric acid solution containing a fluorescent substance of which the fluorescence intensity can change in the co-presence of a bromate ion to pass through the anion exchanger, a third step of measuring the fluorescence intensity of the fluorescent substance contained in the hydrochloric acid solution that has been passed through the anion exchanger, and a fourth step of calculating the bromate ion concentration corresponding to the measured fluorescence intensity using a calibration curve that shows the correspondence relationship between fluorescence intensities of the fluorescent substance and bromate ion concentrations, wherein the third step comprises a substep of calculating a fluorescence intensity at any one case selected from a case in which the excitation wavelength and the fluorescence wavelength are respectively 264 nm and 400 nm, a case in which the excitation wavelength and the fluorescence wavelength are respectively 264 nm and 480 nm, and a case in which the excitation wavelength and the fluorescence wavelength are respectively 300 nm and 400 nm.
Inventors:
KONISHI NATSUMI (JP)
HASEGAWA ERI (JP)
HASEGAWA ERI (JP)
Application Number:
PCT/JP2013/063697
Publication Date:
December 27, 2013
Filing Date:
May 16, 2013
Export Citation:
Assignee:
METAWATER CO LTD (JP)
International Classes:
G01N21/78; G01N21/64; G01N31/00; G01N31/22
Domestic Patent References:
| WO2009116554A1 | 2009-09-24 | |||
| WO2013015142A1 | 2013-01-31 |
Foreign References:
| JPH09119925A | 1997-05-06 | |||
| JPH09119925A | 1997-05-06 | |||
| JPH09116554A | 1997-05-02 |
Other References:
TAKAO OTOMO ET AL.: "Trifluoperazine o Mochiiru ppb Level Shusosan Ion no Keiko Kenshutsu - FIA no Kaihatsu", DAI 70 KAI ABSTRACTS OF THE SYMPOSIUM OF THE JAPAN SOCIETY FOR ANALYTICAL CHEMISTRY, 2 May 2009 (2009-05-02), pages 235, XP008176067
NATSUMI KITA ET AL.: "Basic Examination of Fluorometric Method for Bromate Ion Using Trifluoperazine", JOURNAL OF EICA, vol. 16, no. 2/3, 15 October 2011 (2011-10-15), pages 89 - 92, XP055180031
YOSHIHARU TANAKA ET AL.: "Keiko Shoko Gensho o Riyo shita Shusosan Ion Sokuteiho no Kento", ZENKOKU SUIDO KENKYU HAPPYOKAI KOENSHU, 1 May 2009 (2009-05-01), pages 484 - 485, XP008176068
BRIAN M. DE BORBA ET AL.: "Determination of trace concentrations of bromate in municipal and bottled drinking waters using a hydroxide- selective column with ion chromatography", JOURNAL OF CHROMATOGRAPHY, vol. 1085, no. 1, 26 August 2005 (2005-08-26), pages 23 - 32, XP055179836
JUN'ICHI MASUDA ET AL.: "Post-column HPLC ni yoru Sanka Halogen-san no Kokando Bunseki to Suishitsu Bunseki eno Oyo", ION CHROMATOGRAPHY TORONKAI KOEN YOSHISHU, vol. 17, 15 November 2000 (2000-11-15), pages 48 - 49, XP008176064
TOSHIO TOKUDA: "Dendodo Kenshutsu ni yoru Josuichu Shusosan no Teiryo", ION CHROMATOGRAPHY TORONKAI KOEN YOSHISHU, vol. 18, 4 October 2001 (2001-10-04), pages 22 - 23, XP008176065
"Investigation report on toxicity, behavior, and its reduction of chemical substances in tap water", LIFE SAFETY GENERAL RESEARCH PROJECTS, 1999, pages 2160 - 2168
NATSUMI KITA ET AL.: "Basic Examination of Fluorometric Method for Bromate Ion Using Trifluoperazine", JOURNAL OF EICA, vol. 16, no. 2/3, 15 October 2011 (2011-10-15), pages 89 - 92, XP055180031
YOSHIHARU TANAKA ET AL.: "Keiko Shoko Gensho o Riyo shita Shusosan Ion Sokuteiho no Kento", ZENKOKU SUIDO KENKYU HAPPYOKAI KOENSHU, 1 May 2009 (2009-05-01), pages 484 - 485, XP008176068
BRIAN M. DE BORBA ET AL.: "Determination of trace concentrations of bromate in municipal and bottled drinking waters using a hydroxide- selective column with ion chromatography", JOURNAL OF CHROMATOGRAPHY, vol. 1085, no. 1, 26 August 2005 (2005-08-26), pages 23 - 32, XP055179836
JUN'ICHI MASUDA ET AL.: "Post-column HPLC ni yoru Sanka Halogen-san no Kokando Bunseki to Suishitsu Bunseki eno Oyo", ION CHROMATOGRAPHY TORONKAI KOEN YOSHISHU, vol. 17, 15 November 2000 (2000-11-15), pages 48 - 49, XP008176064
TOSHIO TOKUDA: "Dendodo Kenshutsu ni yoru Josuichu Shusosan no Teiryo", ION CHROMATOGRAPHY TORONKAI KOEN YOSHISHU, vol. 18, 4 October 2001 (2001-10-04), pages 22 - 23, XP008176065
"Investigation report on toxicity, behavior, and its reduction of chemical substances in tap water", LIFE SAFETY GENERAL RESEARCH PROJECTS, 1999, pages 2160 - 2168
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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