Abstract:
A gas chromatography system includes at least one gas chromatography subsystem including at least one injector port, and an autosampler. The autosampler includes a carousel tray mounted for rotation about a rotation axis and including arcuately extending first and second rows of sample reservoirs, a first sample transfer tower to extract samples from the first row, a second sample transfer tower to extract samples from the second row, and a control system operative to: selectively position the carousel tray relative to the first and second sample transfer towers to align the first and second sample transfer towers with a selected pair of the sample reservoirs of the first and second rows, respectively; draw samples from the selected pair using the first and second sample transfer towers; inject the sample drawn from the first row into the at least one injector port using the first sample transfer tower; and inject the sample drawn from the second row into the at least one injector port using the second sample transfer tower.
Abstract:
A flow cell assembly for use in a liquid sample analyzer including a radiation source, a sensing device and a liquid sample source to supply a liquid sample includes an entrance joint member, a liquid core waveguide, a liquid sample feed tube, and an input optical fiber. The entrance joint member includes a waveguide receiving bore and a feed tube receiving bore. The liquid core waveguide is mounted in the waveguide receiving bore and defines a waveguide bore. The liquid sample feed tube is mounted in the feed tube receiving bore such that the liquid sample feed tube is in fluid communication with the waveguide bore to fluidly connect the liquid sample source to the waveguide bore. The input optical fiber is mounted in the entrance joint member to transmit radiation from the radiation source to the waveguide bore, which radiation is transmitted through the waveguide bore and the liquid sample therein to the sensing device.
Abstract:
Certain embodiments described herein are directed to inserts and ion sources. In some examples, an insert can comprise a positioning guide configured to provide for visual positioning of a chromatography column under the positioning guide. In other examples, an ion source configured with an aperture to couple to a carrier tube to render the ion source non-removable from an instrument housing when the carrier tube is coupled to the ion source is described.
Abstract:
A liquid sample analyzer includes a flow cell, a light source, and a lamp temperature management system. The flow cell is configured to receive a flow of a liquid sample from a liquid sample source. The light source includes a lamp configured to emit light to illuminate the flow of the liquid sample in the flow cell. The lamp temperature management system includes: an air flow generator operable to generate a turbulent air flow to cool the lamp; a thermally conductive primary housing encapsulating the lamp such that a primary air gap is provided between the primary housing and the lamp; and a thermally conductive secondary housing surrounding the primary housing and configured to deflect the turbulent air flow away from the primary housing.
Abstract:
Certain embodiments described herein are directed to inserts and ion sources. In some examples, an insert can comprise a positioning guide configured to provide for visual positioning of a chromatography column under the positioning guide. In other examples, an ion source configured with an aperture to couple to a carrier tube to render the ion source non-removable from an instrument housing when the carrier tube is coupled to the ion source is described.
Abstract:
A flow cell module for use in a liquid sample analyzer includes a module housing, a liquid core waveguide mounted in the module housing to receive a flow of a liquid sample from a liquid sample source, an input optical fiber disposed in the module housing to transmit radiation from a radiation source to the liquid core waveguide, an input termination located on an input end of the input optical fiber, a first kinematic connection mechanism operative to bias the input termination in a first direction along a first axis while permitting displacement of the input termination in a first opposing direction along the first axis, and a second kinematic connection mechanism operative to bias the input termination in a second direction along a second axis while permitting displacement of the input termination in a second opposing direction along the second axis. The second axis is transverse to the first axis.
Abstract:
A flow cell module for use in a liquid sample analyzer includes a module housing, a liquid core waveguide mounted in the module housing to receive a flow of a liquid sample from a liquid sample source, an input optical fiber disposed in the module housing to transmit radiation from a radiation source to the liquid core waveguide, an input termination located on an input end of the input optical fiber, a first kinematic connection mechanism operative to bias the input termination in a first direction along a first axis while permitting displacement of the input termination in a first opposing direction along the first axis, and a second kinematic connection mechanism operative to bias the input termination in a second direction along a second axis while permitting displacement of the input termination in a second opposing direction along the second axis. The second axis is transverse to the first axis.
Abstract:
Certain configurations of connectors and connector assemblies are described herein. In some instances, the connector may comprise an internal locking member configured to rotate circumferentially between a first position to couple the connector to a component and a second position to release the connector from the component. If desired, the internal locking member may also provide for longitudinal movement to enhance a fluid tight seal.
Abstract:
A flow cell assembly for use in a liquid sample analyzer including a radiation source, a sensing device and a liquid sample source to supply a liquid sample includes an entrance joint member, a liquid core waveguide, a liquid sample feed tube, and an input optical fiber. The entrance joint member includes a waveguide receiving bore and a feed tube receiving bore. The liquid core waveguide is mounted in the waveguide receiving bore and defines a waveguide bore. The liquid sample feed tube is mounted in the feed tube receiving bore such that the liquid sample feed tube is in fluid communication with the waveguide bore to fluidly connect the liquid sample source to the waveguide bore. The input optical fiber is mounted in the entrance joint member to transmit radiation from the radiation source to the waveguide bore, which radiation is transmitted through the waveguide bore and the liquid sample therein to the sensing device.
Abstract:
A flow cell module for use in a liquid sample analyzer includes a module housing, a liquid core waveguide mounted in the module housing to receive a flow of a liquid sample from a liquid sample source, an input optical fiber disposed in the module housing to transmit radiation from a radiation source to the liquid core waveguide, an input termination located on an input end of the input optical fiber, a first kinematic connection mechanism operative to bias the input termination in a first direction along a first axis while permitting displacement of the input termination in a first opposing direction along the first axis, and a second kinematic connection mechanism operative to bias the input termination in a second direction along a second axis while permitting displacement of the input termination in a second opposing direction along the second axis. The second axis is transverse to the first axis.