JPS57198864A - Mixing device for solvent of high-speed liquid chromatograph - Google Patents

Mixing device for solvent of high-speed liquid chromatograph

Info

Publication number
JPS57198864A
JPS57198864A JP8281881A JP8281881A JPS57198864A JP S57198864 A JPS57198864 A JP S57198864A JP 8281881 A JP8281881 A JP 8281881A JP 8281881 A JP8281881 A JP 8281881A JP S57198864 A JPS57198864 A JP S57198864A
Authority
JP
Japan
Prior art keywords
opening state
brought
state
closing state
electromagnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8281881A
Other languages
Japanese (ja)
Other versions
JPS6251424B2 (en
Inventor
Akira Nakamoto
Akinori Kiyofuji
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimadzu Corp
Shimazu Seisakusho KK
Original Assignee
Shimadzu Corp
Shimazu Seisakusho KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shimadzu Corp, Shimazu Seisakusho KK filed Critical Shimadzu Corp
Priority to JP8281881A priority Critical patent/JPS57198864A/en
Publication of JPS57198864A publication Critical patent/JPS57198864A/en
Publication of JPS6251424B2 publication Critical patent/JPS6251424B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/26—Conditioning of the fluid carrier; Flow patterns
    • G01N30/28—Control of physical parameters of the fluid carrier
    • G01N30/34—Control of physical parameters of the fluid carrier of fluid composition, e.g. gradient

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

PURPOSE:To improve stability and precision of mixture concentration of a solvent, by a method wherein a time, during which control valves are all brought to a closing state, exists for a very short time during a period covering from an opening state of a control valve under a suction process to an opening state of a succeeding control valve. CONSTITUTION:Electromagnetic valves 4a and 4b, having a less dead volume and a quick operating time, and a time, during which they are brought to a closing state from an opening state, being shorter than a time during which they are brought to an opening state from a closing state, are used as a control valve coupled to a suction port of a liquid feed pump 2. A stainless pipe, being reduced in pressure deformation and having a less capacity, is used with a line 3 connecting together the electromagnetic valves 4a, 4b and the liquid feed pump 2. Said pump 2 and electromagnetic valves 4a and 4b are regulated by a program 10, and are controlled so that a total closing state, under which the electromagnetic valves 4a and 4b are both brought to a closing state, exists for a very short time during a period covering from the opening state of one electromagnetic valve under a suction process, for example, the electromagnetic valve 4a to the opening state of the other electromagnetic valve 4b. Solvents A and B, sucked from solvent tanks 6a and 6b, are fed to a detector 100 through a mixer 7 from the pump 2.
JP8281881A 1981-05-30 1981-05-30 Mixing device for solvent of high-speed liquid chromatograph Granted JPS57198864A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8281881A JPS57198864A (en) 1981-05-30 1981-05-30 Mixing device for solvent of high-speed liquid chromatograph

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8281881A JPS57198864A (en) 1981-05-30 1981-05-30 Mixing device for solvent of high-speed liquid chromatograph

Publications (2)

Publication Number Publication Date
JPS57198864A true JPS57198864A (en) 1982-12-06
JPS6251424B2 JPS6251424B2 (en) 1987-10-29

Family

ID=13784979

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8281881A Granted JPS57198864A (en) 1981-05-30 1981-05-30 Mixing device for solvent of high-speed liquid chromatograph

Country Status (1)

Country Link
JP (1) JPS57198864A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009056411A (en) * 2007-08-31 2009-03-19 Ckd Corp Fluid mixing system and fluid mixing apparatus
JP2013040879A (en) * 2011-08-18 2013-02-28 Tosoh Corp Analyzer with analyte diluting device
JP2014153061A (en) * 2013-02-05 2014-08-25 Hitachi High-Technologies Corp Liquid feeding device for liquid chromatograph and liquid chromatograph device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009056411A (en) * 2007-08-31 2009-03-19 Ckd Corp Fluid mixing system and fluid mixing apparatus
JP2013040879A (en) * 2011-08-18 2013-02-28 Tosoh Corp Analyzer with analyte diluting device
JP2014153061A (en) * 2013-02-05 2014-08-25 Hitachi High-Technologies Corp Liquid feeding device for liquid chromatograph and liquid chromatograph device

Also Published As

Publication number Publication date
JPS6251424B2 (en) 1987-10-29

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