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Title:
AUTOMATIC pH ADJUSTMENT APPARATUS
Document Type and Number:
WIPO Patent Application WO/2013/140560
Kind Code:
A1
Abstract:
The present invention pertains to an automatic pH adjustment apparatus, and provides an automatic pH adjustment apparatus which enables short-time preparation of a sample for separation and concentration or which can minimize the contamination factors during the preparation of the sample. In an automatic pH adjustment apparatus (10) according to one embodiment, a pH -adjusting fluid (36) can be jetted in the form of a mist toward the liquid surface of a sample (12) to adjust the pH of the sample (12) to a target level stably with reduced fluctuations in the intensity of transmitted light. Thus, a sample in an amount necessary for separation and concentration can be prepared in a short time. Further, a light source unit (20) and a spectroscope (26), which are used in pH measurement, are located in the outside of a vessel (14), while a jet orifice (28a) of a nebulizer (28) does not come into contact with the liquid surface of the sample (12). In the automatic pH adjustment apparatus (10), as described above, the devices used in pH adjustment do not come in contact with the sample (12), so that the contamination factors during pH adjustment can be minimized.

Inventors:
ZHU, Yanbei (Tsukuba Central 3 1-1, Umezono 1-chome, Tsukuba-sh, Ibaraki 63, 〒3058563, JP)
CHIBA, Koichi (Tsukuba Central 3 1-1, Umezono 1-chome, Tsukuba-sh, Ibaraki 63, 〒3058563, JP)
KURODA, Toshiharu (776-2, Komiyamachi, Hachioji-sh, Tokyo 31, 〒1920031, JP)
HORIUCHI, Michio (776-2, Komiyamachi, Hachioji-sh, Tokyo 31, 〒1920031, JP)
Application Number:
JP2012/057276
Publication Date:
September 26, 2013
Filing Date:
March 22, 2012
Export Citation:
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Assignee:
SYSTEM INSTRUMENTS Co., Ltd. (776-2, Komiyamachi Hachioji-sh, Tokyo 31, 〒1920031, JP)
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (3-1 Kasumigaseki 1-chome, Chiyoda-ku Tokyo, 21, 〒1008921, JP)
ZHU, Yanbei (Tsukuba Central 3 1-1, Umezono 1-chome, Tsukuba-sh, Ibaraki 63, 〒3058563, JP)
CHIBA, Koichi (Tsukuba Central 3 1-1, Umezono 1-chome, Tsukuba-sh, Ibaraki 63, 〒3058563, JP)
KURODA, Toshiharu (776-2, Komiyamachi, Hachioji-sh, Tokyo 31, 〒1920031, JP)
HORIUCHI, Michio (776-2, Komiyamachi, Hachioji-sh, Tokyo 31, 〒1920031, JP)
International Classes:
G01N1/10; G05D21/00
Foreign References:
JPH0386251A1991-04-11
JP2005195412A2005-07-21
JP2004085146A2004-03-18
JP2001249134A2001-09-14
Other References:
ZHU YANBEI ET AL.: 'Bibun Genso no Bunri Noshuku-yo Koso Chushutsu Zenjido Shori System no Kaihatsu' THE OCEANOGRAPHIC SOCIETY OF JAPAN KOEN YOSHISHU vol. 2011, 14 March 2011, page 159
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (Takada, Takahashi & Partners 5th Floor, Intec 88 Bldg., 20, Araki-cho, Shinjuku-k, Tokyo 07, 〒1600007, JP)
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