摘要:
In a process for the preparation of mononitrochlorobenzene by nitration of chlorobenzene using a mixed acid of nitric acid and phosphoric acid, the nitration reaction is carried out by using a molar ratio of nitric acid to chlorobenzene of not more than equimol in the presence of a concentrated phosphoric acid as the phosphoric acid component at temperatures of 50.degree.-120.degree. C. while maintaining the concentration of phosphoric acid to 72.4 weight % as P.sub.2 O.sub.5 or more during the reaction.
摘要:
Disclosed are a measurement device and a puncture device that prevent thermal loss and enable decreased cost in laser units. A laser unit (200) of a measurement device (100) is equipped with a lens barrel (210), a laser rod (220) disposed inside the lens barrel (210), a flash lamp (230) which is disposed opposite the laser rod (220) inside the lens barrel (210) and in which an inert gas is sealed inside a hard glass tube (231), and supports (241, 242, 243, 244), which are made from a material with thermal conductivity of 100 W/(mK) or more, at least parts of which are disposed outside of the lens barrel (210), and which support the circumferential surface of the hard glass tube (231) in a housing.
摘要:
A blood test device by which the amount of plumped skin at a puncture site for conducting a blood test or collecting blood can be controlled so that a blood component can be accurately measured. The blood test device includes: a housing; an inner tube provided in one side of the housing; a reciprocating unit which reciprocates within the inner tube; a blood collection needle connected to the reciprocating unit; a blood sensor facing to the blood collection needle and being located at the tip of the inner tube; a measurement circuit to which a signal is fed from the blood sensor; and a negative pressure unit driven by the measurement circuit. An outer tube, that is a tube covering the inner tube, has an opening in the tip side of the inner tube, is capable of moving relative to the inner tube, and is provided so as to return to a definite relative position. The negative pressure provider can apply a negative pressure to the inside of the outer tube.
摘要:
A blood test device using a laser as a puncture member. More specifically, in a blood test device using a laser as a puncture member, the skin can be fixed at a definite position by raising the punctured skin under negative pressure, and thus the skin is brought into close contact with a blood sensor and the laser is focused on the vicinity of the blood sensor face. Thus, it is possible to provide a blood test device of the laser puncture type in which the skin can be surely punctured while giving little pain to a patient.
摘要:
A blood test device by which the amount of plumped skin at a puncture site for conducting a blood test or collecting the blood can be controlled at a constant amount so that a blood component can be accurately measured. Namely, a blood test device comprising: a housing; an inner tube provided in one side of the housing; a reciprocating unit which reciprocates within the inner tube; a blood collection needle connected to the reciprocating unit; a blood sensor facing to the blood collection needle and being located at the tip of the inner tube; a measurement circuit to which a signal is fed from the blood sensor; and a negative pressure unit driven by the measurement circuit; which further has an outer tube that is a tube covering the inner tube, having an opening in the tip side of the inner tube, being capable of relatively moving to the inner tube, and being provided so as to return to a definite relative position. The negative pressure unit as described above can apply a negative pressure to the inside of the outer tube.
摘要:
There is provided a plate (10) on which a channel pattern (110) is formed, which channel pattern includes a first channel (116) into which a buffer agent is injected, and a second channel (117) having, in a portion thereof, a quantification part (117a) that has a portion common to the first channel and holds a predetermined amount of a biological sample, the biological sample being injected into the channel including the quantification part, and the plate (10) is rotated at a high speed by a filling unit (20) to fill the buffer agent in the first channel, and thereafter, the second channel is pressurized by a discrimination unit (30) to fill the biological sample in the second channel, and simultaneously, a predetermined amount of the biological sample is added into the buffer agent. Therefore, when performing discrimination of the biological sample, a discrimination result can be obtained accurately in a short time without the necessity of complicated preparation works.
摘要:
A measurement apparatus for ulcerative colitis diagnosis and prognostic test according to the present invention comprises a solution mixing unit (15) for mixing an eluent and a quinone solution, the eluent being supplied from a system including a tank (9) in which the eluent used for acid separation is stored, a pump (12) for sending the eluent, a sample injection unit (13) for injecting a sample into the eluent, and an acid separation column (14) for separating short-chain fatty acids included in the sample that is injected from the sample injection unit (13), and the quinone solution being supplied from a system including a tank (8) in which the quinone solution containing quinone and supporting electrolyte is stored, and a pump (11) for sending the quinone solution; and an acid degree measurement unit (16) for measuring the acid degrees of the short-chain fatty acids separated from the sample. In the measurement apparatus for ulcerative colitis diagnosis and prognostic test which is constructed as described above, it is possible to perform ulcerative colitis diagnosis speedily, easily, and accurately, without performing blood test.
摘要:
It is to provide a switching device that can be downsized and improved in reliability of the switching characteristic by making it difficult to damage and deteriorate a permanent magnet that is a component and by improving the shutoff performance. It is a switching device which makes a movable contact into/out of contact with a fixed contact, with a permanent magnet arranged in the vicinity of the fixed contact in a fixed contact terminal provided with the fixed contact on its free end. A narrow portion is formed between the fixed contact and the permanent magnet, hence to form an angle.
摘要:
An acidity measuring apparatus includes a measuring container for accommodating an electrolyte solution including one of a 1,2-benzoquinone derivative and a 1,4-benzoquinone derivative, an organic solvent, an electrolyte and an acid-containing subject for measurement; a working electrode, a counter electrode and a reference electrode section provided in the measuring container and immersed in the electrolyte solution; and a control section for sweeping a potential of the working electrode within a prescribed range and for detecting a value of a pre-peak current generated by the acid and flowing between the working electrode and the counter electrode.
摘要:
A blood testing device that can perform blood testing having lighting intensity independent of the number of times of piercing. The blood testing device (21) has a cover unit (20) removably installed on negative pressure chambers (25a, 25b). The cover unit (20) has a circular tube section (20b) surrounding the optical axis of a laser unit (26) and having a predetermined length in the direction of the optical axis, a cover glass (20d) placed on the optical axis of the laser unit (26) so as to be located at that end of the circular tube section (20b) which is on the laser unit (26) side, and a slit (20e) for interconnecting the inside of the circular tube section (20b) and the negative pressure chamber (25a) outside the circular tube section (20b).