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Title:
ANALYSIS DEVICE HAVING LIQUID CHROMATOGRAPH, AND LIQUID CHROMATOGRAPH ANALYSIS METHOD
Document Type and Number:
WIPO Patent Application WO/2020/059290
Kind Code:
A1
Abstract:
Through the present invention, an analysis device having a liquid chromatograph, and a liquid chromatograph analysis method are realized, whereby it is possible to avoid a condition in which a plurality of separation columns reach the end of their service life and a plurality of streams become unusable at the same time, and to suppress device stoppage or a significant reduction in throughput. In the present invention, a control unit determines whether a condition exists in which there are no usable streams among streams 1, 2, and 3, and when there is no usable stream, the control unit skips sample introduction in the cycle. When there is one usable stream in the cycle, the stream is used. When there are a plurality of usable streams in the cycle, the stream having the smallest stream number is used when there are a plurality of streams having the smallest remaining number of uses of a separation column. When there is one stream having the smallest remaining number of uses of the separation column, the stream to which the separation column having the smallest remaining number of uses is connected is used.

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Inventors:
MATSUOKA SHINYA (JP)
SUGIME TAKAYUKI (JP)
EBIHARA DAISUKE (JP)
Application Number:
PCT/JP2019/029082
Publication Date:
March 26, 2020
Filing Date:
July 24, 2019
Export Citation:
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Assignee:
HITACHI HIGH TECH CORP (JP)
International Classes:
G01N30/86; G01N27/62; G01N30/32; G01N30/46; G01N30/72
Foreign References:
JPH06324027A1994-11-25
JP2004163339A2004-06-10
JPS6454350A1989-03-01
JP2015052533A2015-03-19
JP2004085357A2004-03-18
JP2015166724A2015-09-24
JP2017161335A2017-09-14
JP2017161335A2017-09-14
JPH06324027A1994-11-25
Other References:
"LABOSPECT006, AUTOMATIC ANALYSIS DEVICE AND ATTACHMENT THEREOF", June 2017, HITACHI HIGH-TECHNOLOGIES CORPORATION, article "Overall Mechanism of Independent Administration Medical Device"
See also references of EP 3855179A4
Attorney, Agent or Firm:
KAICHI IP (JP)
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