摘要:
A method for determining boundary points in electrophoresis comprising a step to determine points on the abscissa corresponding to peak tops on a densitogram traced on the basis of electrophoresis of a standard sample as standard positions, a step to locate positions corresponding to said standard positions on a densitogram traced on the basis of electrophoresis of an unknown sample, a step to determine the point corresponding to the lowest concentration among points having minimum values between each pair of neighboring standard positions as the normal boundary point and a step to calculate an integral or a value proportional to the integral of each fraction delimited by the boundary points thus determined.
摘要:
An electrophoretic apparatus comprising a pair of endless belts for conveying a film into and out of the apparatus, filter paper supports on which edge portions of filter paper sheets are placed and filter paper retainers arranged above the filter paper supports. The electrophoretic apparatus is arranged that, after the film is conveyed into the apparatus by means of endless belts, the film is moved upward by moving the filter paper supports upward and thereby holding the edge portions of film between the filter paper supports and filter paper retainers, edge portions of film are pulled in the direction opposite to each other and, then, the film is energized, the electrophoretic apparatus being thereby arranged that the film is energized in the state that it is free from slack so that favorable fractionated patters are obtained.
摘要:
A heat developing device for locally heat developing a dry photosensitive film composed of a heating unit for locally heating a portion to be heat-developed of the photosensitive film and a cooling unit surrounding the heating unit and placed in contact with the periphery of the portion to be heat-developed of the photosensitive film. The cooling unit functions to prevent the thermal effect applied to the heat-developing portion of the photosensitive film from being transmitted to the remainder of the photosensitive film.
摘要:
In a distributing device for sucking a desired amount of a sample liquid in a sample vessel and discharging the thus sucked sample liquid into a reaction vessel, a probe for sucking and discharging the liquid is connected to a syringe driven by a pulse motor. A photoelectric detector is provided for detecting whether the sample liquid is present or not up to a predetermined level in the sample vessel and an actual amount of the sample liquid aspirated by the syringe is detected by a counter which counts clock pulses during the aspirating operation. When the liquid level descends lower than the predetermined level, the counting operation is stopped. The actual amount of the aspirated liquid in the probe is compared with a desired amount stored in a memory. When the actual amount of the sucked liquid is smaller than the desired value, an alarm is produced.
摘要:
A sample applicator comprising a holder and an applicator blade of porous material formed as a rectangular plate and mounted to an end of holder, the sample applicator being arranged to apply a sample onto a film by making the applicator blade absorb the sample and, then, pushing the applicator blade onto the film.
摘要:
A sample tray feeding apparatus capable of preventing water contents from being evaporated from samples even after sample application comprising a sample tray accommodating container capable of accommodating plural number of sample trays in piled up conditions and having a front opening and a rear opening at the lower end thereof, a shifting mechanism for displacing the lowermost sample tray and a plural number of sample tray covers arranged in a row in the vicinity of the rear opening of said sample tray accommodating container, said sample tray feeding apparatus being adapted in such a manner that said shifting mechanism functions to displace the sample trays to a sample adhering position through the front opening for adhering sample to a blade and then to the position under the sample tray covers through the rear opening.
摘要:
A sample applying position marking device for film for electrophoresis comprising a base having a frame which serves as reference surfaces, a top plate mounted to the base so that the top plate can be swung in respect to the base, and pointed protuberances mounted at pre-determined intervals on the bottom surface of the top plate. The sample applying position marking device is arranged to form marks at pre-determined positions of a film by means of the pointed protuberances mounted to the top plate when the film is placed on the base by matching the film to the frame and the top plate is swung downward.
摘要:
In a distributing method for sucking a desired amount of a sample liquid in a sample vessel and discharging the thus sucked sample liquid into a reaction vessel, a probe for sucking and discharging the liquid is connected to a syringe driven by a pulse motor. A photoelectric detector is provided for detecting whether the sample liquid is existed or not up to a predetermined level in the sample vessel and an actual amount of the sample liquid aspirated by the syringe is detected by a counter which counts clock pulses during the aspirating operation. When the liquid level descends lower than the predetermined level, the counting operation is stopped. The actual amount of the aspirated liquid in the probe is compared with a desired amount stored in a memory. When the actual amount of the sucked liquid is smaller than the desired value, an alarm is produced.
摘要:
A densitometer comprising a recorder so adapted as to be capable of recording a set of analytical data obtained with a photometric system twice at a definite recording interval, an index arranged at a position apart by a distance equal to said recording interval from the recording pen of said recorder, a switch for setting boundary point and another switch commanding erasure of boundary point, said densitometer being so adapted as to permit setting and erasing boundary point by using the first recorded densitogram and said index.
摘要:
A process of forming a picture image information such as a manuscript, etc. on a dry treated roll film and developing the same is disclosed. The process comprises successive steps of preparing a film segment having a given length and formed thereon with said picture image information and hot developing said image information formed on said film segment under a flat state without applying tension thereto. An apparatus for practicing the process is also disclosed. The apparatus comprises a cutting block, a photographic block and a hot developing block arranged in succession along a path, said hot developing block having at least one flat surface for attracting a film segment having a given length, and a film carriage provided at its one end with a holding head for attracting and holding said film segment formed thereon with said picture image information and movable along said path to carry said film segment in succession to a position opposed to each of said blocks.