US3624710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for analysis
Assignee: Monsanto Co
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Filing: 1969-07-03
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Granted: 1971-11-30
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Expires: 1989-07-03
Abstract
Abstract A fluid mixture is analyzed by permeating at least one component through a permeable or porous material for a period of time into a collection zone, sweeping out the collected fluid sample by a carrier fluid for a specific period of time, and passing the resultant mixture to analytical means.
Inventors
- 👤 Don E Carter
- 👤 Henry S C Yang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:17
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/04; G01N30/06
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
141 words
Method for the analysis of at least one diffusible component dissolved in a fluid mixture which comprises contacting the said fluid mixture against one surface of a material permeable to the diffusion of the said diffusible component, permeating at least a portion of the said diffusible component through the said permeation material, from the one surface to the other surface thereof as a collection zone, and there collecting the said diffusible component for a collection period, passing a fluid carrier medium across the said other surface of said permeable material for a specific period of time which period of time is from 0.0001 to 0.4 of the collection period, withdrawing the mixture of the said carrier and the said permeated diffusible component from the collection zone to an analysis zone, and thereafter analyzing the said mixture for the said diffusible component.
Claim 2
Dependent Claim
141 words
Method for the analysis of at least one diffusible component dissolved in a fluid mixture which comprises contacting the said fluid mixture against one surface of a material permeable to the diffusion of the said diffusible component, permeating at least a portion of the said diffusible component through the said permeation material, from the one surface to the other surface thereof as a collection zone, and there collecting the said diffusible component for a collection period, passing a fluid carrier medium across the said other surface of said permeable material for a specific period of time which period of time is from 0.0001 to 0.4 of the collection period, withdrawing the mixture of the said carrier and the said permeated diffusible component from the collection zone to an analysis zone, and thereafter analyzing the said mixture for the said diffusible component.
Claim 3
Dependent Claim
16 words
Method as in claim 1 in which the fluid mixture to be analyzed is a liquid.
Claim 4
Dependent Claim
13 words
Method as in claim 1 in which the fluid mixture contains dispersed solids.
Claim 5
Dependent Claim
27 words
Method as in claim 1 in which the fluid mixture iS an aqueous fermentation medium and the diffusible components to be analyzed comprise carbon dioxide and oxygen.
Claim 6
Dependent Claim
26 words
Method as in claim 4 in which the fluid mixture contains a culture which is being propagated, and which is derived from plant or animal cells.
Claim 7
Dependent Claim
15 words
Method as in claim 1 in which the analysis zone is a vapor phase chromatograph.
Claim 8
Dependent Claim
17 words
Method as in claim 1 in which the volatile components analyzed are oxygen, nitrogen and carbon dioxide.
Claim 9
Dependent Claim
14 words
Method as in claim 1 in which the permeable material is a silicone rubber.
Claim 10
Dependent Claim
14 words
Method as in claim 1 in which the permeable material is a fluorocarbon composition.
Claim 11
Dependent Claim
129 words
Method for the analysis of at least one gaseous component dissolved in a liquid, which comprises contacting the said liquid against one surface of a polymeric material permeable to the diffusion of the said gas, permeating at least a portion of the said gas through the said permeation material, from the one surface to the other surface thereof as a collection zone, and there collecting the said gas, passing a carrier gas across the said other surface of said permeable material for a period of time of from 0.0001 to 0.4 of the time of the collection of the said gas, withdrawing the mixture of the said gaseous component and the said carrier gas to an analysis zone, and thereafter analyzing the said mixture for the said gaseous component.
Claim 12
Dependent Claim
129 words
Method for the analysis of at least one gaseous component dissolved in a liquid, which comprises contacting the said liquid against one surface of a polymeric material permeable to the diffusion of the said gas, permeating at least a portion of the said gas through the said permeation material, from the one surface to the other surface thereof as a collection zone, and there collecting the said gas, passing a carrier gas across the said other surface of said permeable material for a period of time of from 0.0001 to 0.4 of the time of the collection of the said gas, withdrawing the mixture of the said gaseous component and the said carrier gas to an analysis zone, and thereafter analyzing the said mixture for the said gaseous component.
Claim 13
Dependent Claim
134 words
Method for the analysis of at least one volatile component dissolved in a fluid mixture which comprises contacting the said fluid mixture against one surface of a porous material, permeating at least a portion of the said volatile component through the said porous material, from the one surface to the other surface thereof as a collection zone, and there collecting the said volatile component for a collection period, passing a fluid carrier medium across the said other surface of said porous material for a specific period of time which period of time is from 0.0001 to 0.4 of the collection period, withdrawing the mixture of the said carrier medium and the said permeated volatile component from the collection zone to an analysis zone, and thereafter analyzing the said mixture for the said volatile component.
Claim 14
Dependent Claim
134 words
Method for the analysis of at least one volatile component dissolved in a fluid mixture which comprises contacting the said fluid mixture against one surface of a porous material, permeating at least a portion of the said volatile component through the said porous material, from the one surface to the other surface thereof as a collection zone, and there collecting the said volatile component for a collection period, passing a fluid carrier medium across the said other surface of said porous material for a specific period of time which period of time is from 0.0001 to 0.4 of the collection period, withdrawing the mixture of the said carrier medium and the said permeated volatile component from the collection zone to an analysis zone, and thereafter analyzing the said mixture for the said volatile component.
References Cited (Backward Citations)
US3367850A
Cited
US3498110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |