US4676897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solubilization chromatography
Assignee: Yokogawa Electric Corp
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Filing: 1986-09-11
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Granted: 1987-06-30
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Expires: 2006-09-11
Abstract
Abstract In an apparatus for conducting solubilization chromatography wherein a solvent consisting of a buffer and ionized micells is allowed to flow through a capillary tube whose both ends are connected to the plus and minus sides, respectively, of a DC source, then a sample is introduced into the capillary tube, components of the sample are separated by combination of dissolution phenomenon of the sample in the ionized micells and capillary electro-phoresis, and qualitative and quantitative analysis of the components is carried out; a three way joint is provided having a first opening connected to the capillary tube, a second opening connected to tubing for feeding the solvent and sample, and a third opening serving as a discharge outlet for residue solution of solvent and sample not introduced into the capillary tube; and means are provided for controlling the time the sample contacts an inlet of the capillary tube within the three way joint, whereby the quantity of sample introduced into the capillary tube is controlled. In another embodiment, means are provided for controlling the quantity of sample which is drawn into the capillary tube.
Inventors
- 👤 Shuichi Kuze
- 👤 Tamotsu Inomata
- 👤 Setsuo Muramoto
- 👤 Hisayuki Ikeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:49
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; B; B01; B01D; B01D15/00; B01D15/08; B01D15/26; B01D15/38; B01D15/3842; G01N30/00; G01N30/02; G01N30/50; G01N30/58; G01N30/26; G01N30/28; G01N2030/285
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
245 words
An apparatus for performing solubilization chormatography, comprising capillary tube having two ends and with one of said ends serving as an inlet; direct current source having a positive side and a negative side, one end of said capillary tube being disposed on said positive side, and the other end being disposed on the negative side; means for supplying to said capillary tube a solvent comprising a buffer solution and ionized micells; means for introducing a sample into said capillary tube, whereby components of said sample are separated by the combined effect of dissolution phenomenon of said sample in said ionized micells and capillary electro-phoresis; tubing connected to said means for suppying and said means for introducing; three way joint comprising first, second and third openings, said first opening being connected to said inlet of said capillary tube, said second opening being connected to said tubing to supply said solvent and said sample, and said third opening serving as a discharge outlet for any residual solution of solvent and sample not introduced into said capillary tube, wherein within said three way joint a stream of said solution comprising said sample and said solvent is brought into contact with said inlet of said capillary tube; means for controlling the contact time of said sample with said inlet of said capillary tube thereby to control the quantity of said sample introduced into said capillary tube; and means for qualitative and quantitative analysis of said components of said sample.
Claim 2
Independent Claim
245 words
An apparatus for performing solubilization chormatography, comprising capillary tube having two ends and with one of said ends serving as an inlet; direct current source having a positive side and a negative side, one end of said capillary tube being disposed on said positive side, and the other end being disposed on the negative side; means for supplying to said capillary tube a solvent comprising a buffer solution and ionized micells; means for introducing a sample into said capillary tube, whereby components of said sample are separated by the combined effect of dissolution phenomenon of said sample in said ionized micells and capillary electro-phoresis; tubing connected to said means for suppying and said means for introducing; three way joint comprising first, second and third openings, said first opening being connected to said inlet of said capillary tube, said second opening being connected to said tubing to supply said solvent and said sample, and said third opening serving as a discharge outlet for any residual solution of solvent and sample not introduced into said capillary tube, wherein within said three way joint a stream of said solution comprising said sample and said solvent is brought into contact with said inlet of said capillary tube; means for controlling the contact time of said sample with said inlet of said capillary tube thereby to control the quantity of said sample introduced into said capillary tube; and means for qualitative and quantitative analysis of said components of said sample.
Claim 3
Dependent Claim
31 words
The apparatus of claim 1, comprising means for changing the flow rate of said solvent, thereby to change the contact time of said sample with said inlet of said capillary tube.
Claim 4
Dependent Claim
32 words
The apparatus of claim 1, comprising means for changing quantity of sample injected into said tubing thereby to change the contact time of said sample with said inlet of said capillary tube.
Claim 5
Independent Claim
235 words
An apparatus for performing solubilization chromatography, comprising capillary tube having two ends and with one of said ends serving as an inlet; direct current source having a positive side and a negative side, one end of said capillary tube being disposed on said positive side, and the other end being disposed on the negative side; means for supplying to said capillary tube a solvent comprising a buffer solution and ionized micells; means for introducing a sample into said capillary tube, whereby components of said sample are separated by the combined effect of dissolution phenomenon of said sample in said ionized micells and capillary electro-phoresis; tubing connected to said means for supplying and said means for introducing; three way joint comprising first, second and third openings, said first opening being connected to said inlet of said capillary tube, said second opening being connected to said tubing to supply said solvent and said sample, and said third opening serving as a discharge outlet for any residual solution of said sample and said solvent which is not introduced into said capillary tube, wherein within said three way joint a stream of said solution comprising said sample and said solvent is brought into contact with said inlet of said capillary tube; means for controlling the quantity of sample drawn into said inlet of said capillary tube; and means for qualitative and quantitative analysis of said components of said sample.
Claim 6
Independent Claim
235 words
An apparatus for performing solubilization chromatography, comprising capillary tube having two ends and with one of said ends serving as an inlet; direct current source having a positive side and a negative side, one end of said capillary tube being disposed on said positive side, and the other end being disposed on the negative side; means for supplying to said capillary tube a solvent comprising a buffer solution and ionized micells; means for introducing a sample into said capillary tube, whereby components of said sample are separated by the combined effect of dissolution phenomenon of said sample in said ionized micells and capillary electro-phoresis; tubing connected to said means for supplying and said means for introducing; three way joint comprising first, second and third openings, said first opening being connected to said inlet of said capillary tube, said second opening being connected to said tubing to supply said solvent and said sample, and said third opening serving as a discharge outlet for any residual solution of said sample and said solvent which is not introduced into said capillary tube, wherein within said three way joint a stream of said solution comprising said sample and said solvent is brought into contact with said inlet of said capillary tube; means for controlling the quantity of sample drawn into said inlet of said capillary tube; and means for qualitative and quantitative analysis of said components of said sample.
Claim 7
Dependent Claim
33 words
The apparatus of claim 4, comprising means for changing the magnitude of voltage applied to both ends of said capillary tube, thereby to control the quantity of sample drawn into said capillary tube.
Claim 8
Dependent Claim
33 words
The apparatus of claim 4, comprising means for changing the duration of voltage applied to both end of said capillary tube, thereby to control the quantity of sample drawn into said capillary tube.
Claim 9
Dependent Claim
41 words
The apparatus of claim 4, comprising a supersonic piezoelectric transducer mounted on said three way joint, and means for changing the magnitude of driving voltage applied to said transducer, thereby to control the quantity of sample drawn into said capillary tube.
Claim 10
Dependent Claim
42 words
The apparatus of claim 4, comprising a supersonic piezoelectric transducer mounted on said three way joint, and means for changing the frequency of alternating voltage used to drive said transducer, thereby to control the quantity of sample drawn into said capillary tube.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-29 | 1990-12-29 | 1991-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-29 | 1994-12-29 | 1995-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-29 | 1998-12-29 | 1999-06-30 | $7700.00 | Window Closed / Lapsed |