摘要:
Provided is a pipette, including: a cylinder (1) having a distal end portion (1a) to which a pipette tip (3) is removably fitted; and a piston (7) fitted to be freely advanced and retreated in a cylinder chamber (6), the piston (7) being retreated to suck liquid and advanced to eject the liquid thus sucked. The piston (7) includes, on an outer periphery thereof, a communication groove (17) for communicating an inside of the cylinder chamber (6) and an outside of the cylinder chamber (6) to each other when the piston (7) is advanced by an amount corresponding to a dimension larger than a predetermined dimension, the communication groove (17) being located on the outside of the cylinder chamber (6) when the piston (7) is located at a retreated position. When the piston (7) is advanced by the amount corresponding to the dimension larger than the predetermined dimension, seal between the cylinder chamber (6) and the piston (7) is released, with the result that pressure in the cylinder chamber (6) becomes equal to the atmospheric pressure, and a suction/ejection effect is eliminated.
摘要:
A feces-sampling transport container includes a cylindrical container body capable of accommodating a liquid; a cap equipped with a sampling rod; a separating wall disposed in the container body; a filter for filtering a liquid; and a dropping portion for the filtered liquid. The filter has its outer circumferential portions clamped and fixed by a stepped portion in the container body and the end face of the dropping portion. In this container, the filter has a high effective filtration area percentage. Moreover, the container is so easily transported that it can be sent and/or returned by via mail such as by packaging it in an envelope. Thus, the container has a high usability.
摘要:
A pipette includes a cylinder having a distal end portion to which a pipette tip is removably fitted; and a piston fitted to be freely advanced and retreated in a cylinder chamber. The piston is retreated to suck liquid and advanced to eject the liquid thus sucked. The piston includes, on an outer periphery thereof, a communication groove for allowing an inside of the cylinder chamber to communicate with an outside of the cylinder chamber when the piston is advanced by an amount corresponding to a dimension larger than a predetermined dimension. The communication groove is located on the outside of the cylinder chamber when the piston is located at a retreated position. When the piston is advanced by the amount corresponding to the dimension larger than the predetermined dimension, a seal between the cylinder chamber and the piston is released so that pressure in the cylinder chamber becomes equal to the atmospheric pressure, and a suction/ejection effect is eliminated.
摘要:
This invention provides a tool for recovering biological samples for realizing more simple and accurate clinical testing with the use of a trace amount of the blood sample, a kit comprising the same, and a method for recovering and separating biological samples using the same. Such tool comprises: a recovery container body composed of an upper container portion having a medium-accommodating portion, provided with an upper opening, for accommodating and conserving an absorption medium to be impregnated with the recovered biological samples and a lower container portion for accommodating the biological samples separated from the medium; and a lid for closing the upper opening of the medium-accommodating portion, the bottom of such medium-accommodating portion being provided with an open area in communication with the lower container portion.
摘要:
An image signal processing method in which inspection of a specimen is performed based on the image data collected for the wafer or other specimen by scanning a pilot specimen in a scanning electron microscope, prior to the scanning of the specimen to be inspected. The number of scans of the specimen to be inspected can be reduced, the dose of the primary electrons irradiated can be reduced, and high-quality image data can be obtained in a short time. For a pilot specimen, the image data are collected by making multiple scans in a scanning electron microscope 1. From the obtained image data, the evaluated relative feature function ERFF of an electro-optical cylinder of a scanning electron microscope 1 is calculated (step S01). For the specimen as the inspection object, the image data are collected in a number of scans less than that for the aforementioned pilot specimen in a scanning electron microscope 1. The degraded image of the image data is then corrected using the evaluated relative feature function ERFF of the electro-optical cylinder of the scanning electron microscope (step S02).