Abstract:
A gas chromatograph with column recognition technology system for the column includes a column and the column recognition technology system for the column. The column is configured for gas chromatography. The column includes column parameters associated with the column. The column recognition technology system may be configured to auto-recognize the column in the gas chromatograph device. Wherein, the column recognition technology system may be configured to auto-recognize the column parameters associated with the auto-recognized column.
Abstract:
A sorbent tube holder (100) for securing a sorbent tube (10) in position in a fluid-flow system, the sorbent tube holder (100) comprising: an mounting element (126) having first and second opposed ends (126a, 126b) which define a tube mounting axis (A-A); at least one fastener (128) in communication with the mounting element (126) for providing a releasable tube retaining force; at least one sorbent tube (10) engaged with the mounting element (126); and a holder frame (130) to which the mounting element (126) is attached to prevent or limit movement of the mounting element (126) perpendicular to the tube mounting axis.A method of preventing or limiting unintentional damage to a sorbent tube, and a portable tube holder are also provided.
Abstract:
The invention relates to a chromatography column frame (101 ) comprising at least two legs (102), a support arrangement (104) connected to said at least two legs (102), and a holder means (106) connected to said support arrangement (104). Said holder means (106) is arranged to releasably hold an adaptor rod (138) of a chromatography column (128), so that the adaptor rod (138) is prevented to move in a horizontal direction and so the adaptor rod (138) is allowed to move in a vertical direction. The invention also relates to method of conducting maintenance on and packing of a chromatography column (128).
Abstract:
The invention relates to a chromatography column comprising: a tubular housing (102); a first end unit (104) removably connected to a first end of the tubular housing (102); a second end unit (106) removably connected to a second end of the tubular housing (102); an adaptor assembly (122) movable within said tubular housing (102); an adaptor rod (110) connected to said adaptor assembly (122), which adaptor rod (110) is arranged to extend through an opening (112) in the first end unit (104); a filter (136) removably connected to the adaptor assembly (122); and a frame (114) connected to said tubular housing (102) for supporting the column (101) on a floor. At least an actuating means (180) is arranged on the frame (114), so that the column (101) can be lifted and lowered in a substantially vertical direction. The invention also relates to method of conducting maintenance on a chromatography column.
Abstract:
A thermal system for use in a column manager of a liquid chromatography system comprises a plurality of spatially separated individually controlled thermoelectric chips. A column module houses a plurality of thermally conductive troughs. Each trough resides in a separate thermal zone to be thermally conditioned individually by one of the individually controlled thermoelectric chips. Each trough is adapted to hold one or more liquid chromatography columns therein. A plurality of spatially separated thermal bridges includes a first thermal bridge thermally coupling one of the thermoelectric chips to a first one of the plurality of troughs and a second thermal bridge of the plurality of thermal bridges thermally coupling another of the thermoelectric chips to a second one of the plurality of troughs.
Abstract:
There is described a supporting device (11) for capillary and nano columns used in liquid chromatography, wherein adapter means are provided to hold a column in position in the housing element and to ensure fluid-tight seal of the column regardless of its length and/or of its diameter. Separate embodiments describe adapter means for columns of different diameters, but of predetermined length; adapter means that can be adjusted in length; a coiled column; and multiple columns connected in series.
Abstract:
An attachment arrangement comprising -two resilient arms (1a, 1b) connected to a device to be attached, the other ends of the resilient arms (1a, 1b) pointing away from each other; -one locking part (7a, 7b) on each resilient arm (1a, 1b), said locking parts (7a, 7b) being T- shaped and adapted to together fit into a T-groove by forcing the resilient arms (1a, 1b) towards each other and twist the attachment arrangement during insertion into the T-groove. Said attachment arrangement is secured in the T-groove when the attachment arrangement is twisted back again and the pressure on the resilient arms (1a, 1b) is released. A column holder provided with an attachment arrangement according to the invention.
Abstract:
Die Erfindung betrifft eine Vorrichtung zur Feldflußfraktionierung mit einem einen Trennkanal (6) enthaltenden Kanalmodul (2), einer Halteeinrichtung (3) zur Fixierung des Kanalmodules (2) mittels Befestigungselementen (16) und mindestens einer Laminarpumpe (5) zur Erzeugung eines laminaren Lösungsmittelstromes eines die zu trennenden Partikel enthaltenden Lösungsmittels durch den Trennkanal (6), wobei das Kanalmodul (2) ein Oberteil (7) und ein Unterteil (8) umfaßt. Um ein Austauschen von zwischen Ober- und Unterteil (7, 8) auswechselbar angeordneten Teilen auf einfache Weise vornehmen zu können, schlägt die Erfindung vor, eine am Unterteil (8) des Kanalmodules (2) anliegende Druckplatte (16) der Halteeinrichtung (3) mittels eines Hydraulikzylinders (14) gegen das Unterteil (8) zu pressen. Dabei ist der Hydraulikzylinder (14) derart ausgelegt, daß als Mittel zur Druckübertragung das zur Fraktionierung benötigte Lösungsmittel verwendet wird, so daß der Hydraulikzylinder (14) über einen Druckumsetzer (24), der eine räumliche Trennung des für den Hydraulikzylinder (14) benötigten Öles und des Lösungsmittels bewirkt, ebenfalls mit der Laminarpumpe (5) verbunden ist.
Abstract:
The plunger used as the upper enclosure in a preparative chromatography column is suspended by one or more rods that are supported by a frame through coupling connections on the frame that can fix the position of the rod(s) relative to the frame, while the position of the rod(s) is controlled by a motorized drive system that is suspended above the column. The drive system is mounted either to the column lid or to a functional plate positioned a short distance above the column lid. These constructions allow the plunger to be raised and lowered so that the column and its parts can be exchanged, all without the need for a hoist or crane.