摘要:
An open top electrode tank including two electrode chambers respectively containing an electrolyte and an electrode, and an open top cooling tank containing cooling fluid are superposed one upon the other. A separating zone is attached to the bottom of the cooling tank, and bent portions of a pair of bridging filter papers are attached to predetermined positions of a separating zone. Permanent magnets are disposed on both sides of each filter paper and on the bottom of the cooling tank for attracting each other.
摘要:
A horizontal electrophoresis apparatus characterized by a cooling plate which consists of a sintered SiC with high thermal conductivity and good insulating properties, or sintered material composed mainly of SiC, and a Peltier element, as the heat conducting material to cool the supporting matrix or electrolyte.
摘要:
Disclosed herein is a gel slab electrophoresis device having novel temperature and heat control capability. The electrophoresis device includes a sample unit having a pair of transversely-spaced first and second plates containing a gel cast, these plates having open top and bottom slots spaced therebetween. An integral part of the apparatus is a heat sink which is in thermal communication with the sample unit, the heat sink constituting a pneumatic circuit for both heat distribution and removal to and from the gel cast. There is also provided upper and lower solution chambers, both filled with conductive solutions, and both in fluid communication with the respective top and bottom portions of the gel. The apparatus also includes an arrangement for applying an electrical potential between the upper and lower solution chambers and, thereby, across the entire vertical length of the gel. Additionally provided is a refrigeration sub-system, the output of which is heat exchanged into the pneumatic circuit.
摘要:
Apparatus for holding an electrophoresis slide of agarose gel against the concave surface of a slide mounting block is described. The holding means permits the slide to be inserted readily and holds the slide in compression in intimate contact with the concave surface.
摘要:
A gel electrophoresis apparatus for single cell gel electrophoresis, including a chamber for receiving a gel electrophoresis buffer, a functional cover for closing the chamber, at least one pair of electrodes for generating a homogeneous electric field in the chamber and at least one retaining element for receiving and positioning at least one support plate. The at least one retaining element positions the at least one support plate in the homogeneous electric field generated by the at least one pair of electrodes.
摘要:
A precast gel/membrane combination unit for use in gel electrophoresis and membrane transfer for protein analysis, and method of use. Transparent electrically conductive plastic/polymer plate(s) house an electrophoresis gel and immunoblotting membrane. The gel and membrane are positioned between two plates of conductive plastics/polymers or plates having an electrically conductive layer or film. During the electrophoresis step, electrical current moves proteins through the gel allowing for protein separation. Then, without removing or reorienting the gel or apparatus, the electrical contacts are switched to allow the flow of electricity to run perpendicularly through the gel via the conductive plastics/polymers, which will allow the proteins to transfer to the membrane housed in the same precast gel/membrane combination unit. The apparatus allows the user to visually see and perform the steps of protein separation and protein transfer to a transfer membrane without transferring the gel or apparatus after the electrophoresis separation phase.
摘要:
A fully automated high-precision capillary electrophoresis instrument, comprising an electrophoresis system, a sample injection flow path, and an automatic sampling flow path; the sampling flow path comprising a shunt waste bottle, which is connected to a four-way connector, a four-way sample injection valve and a buffer syringe pump; the automatic sampling flow path comprises a sampling needle, a sample tray, a cleaning tank, reagent bottles, a buffer tube, a six-channel liquid dispenser, and a syringe pump. The described capillary electrophoresis instrument has a fast sample injection speed, high accuracy, good reproducibility, and can be widely used in automated analysis of different substances by capillary electrophoresis.
摘要:
An analysis apparatus is an apparatus that performs electrophoresis using a microchip provided with a channel. The analysis apparatus includes a cooling unit (an electron cooling element and a driving circuit) that cools the microchip, a voltage application unit (electrodes and a power supply circuit) that applies voltage to a buffer solution filled in the channel of the microchip, an optical analysis unit (a light source, a light receiving element, and an analysis unit) that conducts, through the microchip, optical analysis of a sample introduced in the channel, and a control unit that controls the cooling unit, the voltage application unit, and the optical analysis unit. The control unit causes the cooling unit to start cooling the microchip, and after the microchip has been cooled, causes the voltage application unit and the optical analysis unit to operate.
摘要:
A multi-capillary electrophoresis apparatus is provided for reducing errors during analysis caused by fluctuations in electrophoresis time among plural capillaries of the apparatus. The multi-capillary electrophoresis apparatus can contain a multi-capillary array that has a separation medium filled therein for isolating a sample. A detector component can be provided at a position remote from a sample injecting end of the array for acquiring information from the sample. A buffer container can be provided for holding a buffer solution into which the sample injecting end can be immersed. One or more temperature controlling component devices can be arranged for controlling a temperature of the buffer solution, of the detector component, or of both the buffer solution and the detector component.
摘要:
Methods for reducing peak broadening associated with the establishment of a run field in a capillary electrophoresis process, and apparatus useful for carrying out such methods, are described. Such methods include defining a maximum ramp rate to be used during an initial electric field ramp, defining a minimum period over which the run field is established, and/or maintaining a temperature of a separation medium to within certain ranges during the initial electric field ramp. In addition, methods for determining a ramp rate effective for reducing peak broadening are disclosed.