Patent US3797318A successfully refreshed from Google Patents.
US3797318A
Expired / Lapsed
US
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Method and apparatus for collecting and introducing a sample into an analytical instrument
Assignee: PE Manufacturing GmbH
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Filing: 1972-08-07
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Granted: 1974-03-19
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Expires: 1992-08-07
Abstract
Abstract A sample is collected and introduced into an analytical instrument by sorbing the sample with a sorption material which is arranged as a surface of a sampling transportable body, positioning the sampling body in an inlet chamber of the instrument, heating the sampling body for causing desorption of the sample material, and conveying the desorbed material in a carrier stream to an analysis station of the instrument. A sampling collecting device comprises a sampling body including a sorption segment thereof having a surface arranged for sorption of sample material. The sampling body further includes an elongated segment which is coupled to the sorption segment, an annular seal extending about a circumference of the elongated segment and a sealing plug and handle located at an end of the body opposite to that of the sorption surface segment. An apparatus for receiving the sampling device and for introducing the sample therein includes an inlet chamber which is positioned near a guide channel and through which channel the sorption segment of the sampling body is introduced. The elongated segment is guided in the channel and a chamber closure member is provided which is actuated by the device when the annular seal on the elongated segment establishes a leak-proof seal between the guide channel and chamber. The chamber closure member is actuated by the sampling body for causing a carrier gas stream to flow over the sampling body and to convey a desorbed material to the instrument.
Inventors
- 👤 E Palm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:38
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/04; G01N30/06; G01N30/08; G01N1/00; G01N1/02; G01N1/22; G01N1/2247; G01N1/2202; G01N1/2214; G01N1/28; G01N1/40; G01N1/405
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
104 words
A method of collecting and injecting a sample material into an analytical apparatus comprising the steps of: sorbing the sample material on the surface of a sorption segment of a generally transportable sampling device by positioning said segment of said device in a space above a liquid sample which space is occupied by the vaporized liquid sample; introducing the sorption segment bearing the sorbed sample material into an inlet chamber of an analytical apparatus; causing the desorption of the material from the sorption segment of the sampling device within said chamber; and, conveying the desorbed sample material to an analysis station of the apparatus.
Claim 2
Independent Claim
104 words
A method of collecting and injecting a sample material into an analytical apparatus comprising the steps of: sorbing the sample material on the surface of a sorption segment of a generally transportable sampling device by positioning said segment of said device in a space above a liquid sample which space is occupied by the vaporized liquid sample; introducing the sorption segment bearing the sorbed sample material into an inlet chamber of an analytical apparatus; causing the desorption of the material from the sorption segment of the sampling device within said chamber; and, conveying the desorbed sample material to an analysis station of the apparatus.
Claim 3
Independent Claim
121 words
A method of collecting and injecting a sample material into an analytical apparatus comprising the steps of: sorbing the sample material on the surface of a sorption segment of a generally transportable sampling device by positioning said sorption segment of said device in an environment for exposing said segment to the sample material; positioning said sorption segment within a gas-tight vessel after sample sorption and then transporting the sample device to an analytical apparatus; introducing the sorption segment bearing the sorbed sample material into an inlet chamber of an analytical apparatus; causing the desorption of the material from the sorption segment of the sampling device within said chamber; and, conveying the desorbed sample material to an analysis station of the apparatus.
Claim 4
Independent Claim
121 words
A method of collecting and injecting a sample material into an analytical apparatus comprising the steps of: sorbing the sample material on the surface of a sorption segment of a generally transportable sampling device by positioning said sorption segment of said device in an environment for exposing said segment to the sample material; positioning said sorption segment within a gas-tight vessel after sample sorption and then transporting the sample device to an analytical apparatus; introducing the sorption segment bearing the sorbed sample material into an inlet chamber of an analytical apparatus; causing the desorption of the material from the sorption segment of the sampling device within said chamber; and, conveying the desorbed sample material to an analysis station of the apparatus.
Claim 5
Dependent Claim
20 words
The method of claim 1 wherein said sample material is desorbed by heating said sorption segment of said sampling device.
Claim 6
Independent Claim
132 words
A method of collecting and injecting a sample material into an analytical apparatus comprising the steps of: sorbing the sample material on The surface of the sorption segment of a generally elongated transportable sampling device; introducing the sorption segment bearing the sorbed sample material into an inlet chamber of an analytical apparatus; causing the desorption of the material from the sorption segment of the sampling device within said chamber; and, conveying the desorbed sample material to an analysis station of the apparatus; said apparatus including an inlet chamber and valving means for controlling the flow of a carrier gas from a source thereof through said inlet chamber to the analysis station of the apparatus, and said sampling device actuating said valving means during insertion of said sorption segment into said inlet chamber.
Claim 7
Independent Claim
132 words
A method of collecting and injecting a sample material into an analytical apparatus comprising the steps of: sorbing the sample material on The surface of the sorption segment of a generally elongated transportable sampling device; introducing the sorption segment bearing the sorbed sample material into an inlet chamber of an analytical apparatus; causing the desorption of the material from the sorption segment of the sampling device within said chamber; and, conveying the desorbed sample material to an analysis station of the apparatus; said apparatus including an inlet chamber and valving means for controlling the flow of a carrier gas from a source thereof through said inlet chamber to the analysis station of the apparatus, and said sampling device actuating said valving means during insertion of said sorption segment into said inlet chamber.
Claim 8
Dependent Claim
98 words
An improved arrangement for introducing a sample material into an analytical apparatus comprising: an inlet chamber; means for supplying a carrier gas to said inlet chamber; means for conveying said carrier gas from said inlet chamber to said analysis station of said apparatus; a sampling device including a sorption segment adapted for sorbing a sample material on a surface thereof; and, means for introducing said sorption segment into said inlet chamber, said means including a valve for inhibiting the flow of carrier gas through said latter means to atmosphere, said valve arranged for actuation by said sampling device.
Claim 9
Dependent Claim
98 words
An improved arrangement for introducing a sample material into an analytical apparatus comprising: an inlet chamber; means for supplying a carrier gas to said inlet chamber; means for conveying said carrier gas from said inlet chamber to said analysis station of said apparatus; a sampling device including a sorption segment adapted for sorbing a sample material on a surface thereof; and, means for introducing said sorption segment into said inlet chamber, said means including a valve for inhibiting the flow of carrier gas through said latter means to atmosphere, said valve arranged for actuation by said sampling device.
Claim 10
Dependent Claim
59 words
The apparatus of claim 5 including a carrier gas transfer flow channel communicating between said inlet chamber and a first outlet aperture of said chamber and said valve is arranged for diverting the flow of carrier gas about said sorption segment when said sorption segment is positioned within said chamber and through said transfer flow channel to the apparatus.
Claim 11
Dependent Claim
41 words
The apparatus of claim 6 wherein said inlet chamber is formed as a cylinder and said valving means comprises a piston which is reciprocated between first and second positions by the introduction and removal of said sorption segment from said chamber.
Claim 12
Dependent Claim
70 words
The apparatus of claim 7 wherein said piston is arranged for enabling the flow of carrier gas through said chamber directly to said instrument when said piston is located in said first position and for inhibiting the direct flow of carrier gas to said instrument and causing said carrier gas to flow over said sorption segment and through said transfer channel when said piston is located in said second position.
Claim 13
Dependent Claim
27 words
The apparatus of claim 8 wherein said piston inhibits the flow of carrier gas through said transfer channel when said piston is located in said first position.
Claim 14
Dependent Claim
104 words
The apparatus of claim 5 wherein said valving means comprises a sluice chamber positioned adjacent said inlet chamber, a normally seated sluice valve which seals said sluice chamber from an inlet aperture thereto and which is arranged to be actuated by the sampling device when said sampling device is introduced through said inlet aperture, means forming a passage between said sluice chamber and said inlet chamber for introducing said sorption segment into said inlet chamber, means for directing the flow of carrier gas over said sorption segment, and means for inhibiting the leakage of carrier gas from said inlet chamber through said sluice valve.
Claim 15
Dependent Claim
28 words
The apparatus of claim 5 wherein said sampling device includes means positioned thereon for establishing the gas-tight seal for inhibiting leakage of carrier gas from said inlet chamber.
Claim 16
Dependent Claim
63 words
The apparatus of claim 10 wherein said sampling device includes means positioned thereon for establishing the gas-tight seal for inhibiting leakage of carrier gas from said inlet chamber, and said gas leakage inhibiting means comprises means for inhibiting leakage of gas from said inlet chamber to said sluice chamber and for inhibiting leakage of gas from said sluice chamber to said inlet aperture.
Claim 17
Dependent Claim
113 words
The apparatus of claim 5 wherein said valving means includes an annular valve seat which is positioned within said inlet chamber and through which said sorption segment exTends upon entering said chamber, said valve comprises a body which is normally seated at said valve seat for inhibiting flow of carrier gas from said chamber to a probe inlet to said chamber, said valve is arranged for displacement in the direction parallel to a longitudinal axis of said sampling device and said valve includes recesses formed on an outer surface thereof for providing a carrier gas flow passage between the outer surface of the valve and said inlet chamber when said valve is unseated.
Claim 18
Dependent Claim
41 words
The sampling arrangement of claim 5 wherein said sorption segment comprises a plurality of concentrically arranged tubes extending over a predetermined length and spaced apart radially, each of said tubes providing a sorption surface for sorbing and adsorbing a sample material.
Claim 19
Dependent Claim
27 words
The sampling arrangement of claim 5 wherein said sorption segment comprises a body having a surface portion thereof elevated with respect to other portions of the body.
Claim 20
Dependent Claim
24 words
The sampling arrangement of claim 15 wherein said sorption segment is formed by a plurality of lands and grooves formed in said sorption segment.
Claim 21
Dependent Claim
54 words
The sampling arrangement according to claim 5, in which: said sampling device comprises, in addition to said sorption segment, a relatively elongated support segment attached thereto; and means are positioned on said support segment for establishing a gas-tight seal between said segment at a wall of a body within which said segment is positioned.
Claim 22
Dependent Claim
67 words
A sampling device comprising: a generally cylindrically shaped body having a relatively elongated support segment thereof and a relatively shorter sorption segment extending from said support segment; said sorption segment having a surface thereof adapted for sorbing a sample material and for desorbing said sample material when said sorption segment is heated; the surface of said sorption segment being coated with a film of a high-boiling liquid.
Claim 23
Dependent Claim
67 words
A sampling device comprising: a generally cylindrically shaped body having a relatively elongated support segment thereof and a relatively shorter sorption segment extending from said support segment; said sorption segment having a surface thereof adapted for sorbing a sample material and for desorbing said sample material when said sorption segment is heated; the surface of said sorption segment being coated with a film of a high-boiling liquid.
Claim 24
Dependent Claim
67 words
A sampling device comprising: a generally cylindrically shaped body having a relatively elongated support segment thereof and a relatively shorter sorption segment extending from said support segment; said sorption segment having a surface thereof adapted for sorbing a sample material and for desorbing said sample material when said sorption segment is heated; the surface of said sorption segment being coated with a film of a high-boiling liquid.
Claim 25
Dependent Claim
67 words
A sampling device comprising: a generally cylindrically shaped body having a relatively elongated support segment thereof and a relatively shorter sorption segment extending from said support segment; said sorption segment having a surface thereof adapted for sorbing a sample material and for desorbing said sample material when said sorption segment is heated; the surface of said sorption segment being coated with a film of a high-boiling liquid.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |