摘要:
A dynamic circuit that prevents a malfunction, even when the operating temperature is high, including a pre-charging circuit connected between a power source node and a signal wiring, a plurality of discharging circuits being connected between a power source node and a signal wiring, a plurality f discharging circuit connected between the signal wiring and a ground potential respectively and for being selectively turn-ON/OFF controlled, a leakage current detecting circuit for detecting a current corresponding to a leakage current generated between the signal wiring and the ground potential in the turn-OFF state of each discharging circuit, and a leakage current correcting circuit connected between the power source node and the signal wiring and for continuously supplying to the signal wiring a leakage correction current equivalent to a leakage current of the signal wiring corresponding to a detected current of the leakage current detecting circuit during a leakage current correction period.
摘要:
A control serum for a dry process is provided that does not show misfit in measurement values by the dry process and a wet process. The above-mentioned control serum is obtained by freezing or freeze-drying a control serum without dialysis.
摘要:
A dry analytical element for quantitatively analyzing creatine kinase MB isozyme is composed of a support and a creatine kinase MB isozyme-detecting agent layer. The detecting layer contains an antibody which specifically inhibits activity of M sub-unit of creatine kinase, creatine phosphate and adenosine diphosphate which react with each other to give adenosine triphosphate in the presence of creatine kinase MB isozyme, a buffer compound which keeps the layer in the range of pH 5.5 to pH 8.5 for the formation of adenosine triphosphate, and an indicator composition which reacts with the formed adenosine triphosphate to give a spectroscopically detectable compound, said indicator composition having hexokinase, nicotinamide-adenine dinucleotide or its phosphate in an oxidized form, and glucose-6-phosphate dehydrogenase but not containing glucose in such amount as to give the spectroscopically detectable compound.
摘要:
An integral multilayer analytical element for the measurement of alkaline phosphatase activity, which comprises a porous spreading layer containing a self-developable substrate in response to contact with alkaline phosphatase, a buffer layer containing a diffusion-resistant base and a support in a laminated form.
摘要:
A humoral testing apparatus in which a measuring light is irradiated to a reagent area forming a color as a result of a reaction and an optical density of the reagent area is detected by a detecting operation of light intensity of the reflected light. The humoral testing apparatus enables a humoral test to be performed accurately in cases where nonuniformity occurs with the reaction of a reagent with a humoral sample within the reagent area, or in cases where fine dust is present within each detecting spot in the reagent areas. The light reflected from the reagent areas is detected with a two-dimensional photodetector. The independent light intensity detecting operations are performed with respect to the subareas of the reagent area of a reagent layer. A photo detection signal S, which represents the intensity of the reflected light is statistically processed with a signal processing section 51.
摘要:
A dry analytical element for quantitatively analyzing creatine kinase is composed of a support and a creatine kinase-detecting agent layer. The creatine kinase-detecting agent layer contains creatine phosphate and adenosine diphosphate which react with each other to give adenosine triphosphate in the presence of creatine kinase, a buffer compound having a sulfonic acid group which keeps the layer in the range of pH 5.5 to pH 8.5 for the formation of adenosine triphosphate, and an indicator composition which reacts with the formed adenosine triphosphate to give a spectroscopically detectable compound. An analytical element for analysis of creatine kinase MB isozyme further contains in the layer an antibody which specifically inhibits activity of M sub-unit of creatine kinase.
摘要:
The concentration of an analyte in a sample liquid is determined on the basis of the optical density of a chemical analysis element spotted with the sample liquid according to a standard curve representing the relation between the concentration and the optical density of the analysis element which is obtained when the concentration is measured using an analysis element of a first lot. A plurality of first standard liquids containing the analyte in known levels are spotted onto analysis elements of a second lot, the concentrations of the analyte in the first standard liquids are determined according to the standard curve and a first calibration curve for correcting the concentrations of the analyte is prepared. A plurality of second standard liquids containing the analyte in known levels are spotted onto analysis elements of the second lot, the concentrations of the analyte in the second standard liquids are determined according to the standard curve on the particular analysis system, the concentrations of the analyte in the second standard liquids thus determined are corrected according to the first calibration curve, and a second calibration curve for correcting the concentrations of the specific analyte in the second standard liquids thus corrected is prepared.
摘要:
In a semiconductor integrated circuit, a digital circuit section and an analog circuit section are formed on a substrate. A pair of first power source lines connects a circuit element in the digital circuit section to a power source, while a pair of second power source lines connects a substrate region in the digital circuit section to the power source. The pair of second power source lines is formed separately from the pair of first power source lines in the digital circuit section. The substrate region in the digital circuit section is surrounded by a guard ring well, to which one of the pair of second power source lines is connected.
摘要:
An object of the present invention is to provide a method for predicting the risk of acquiring influenza, which is characterized by low price, low invasiveness, and applicability to total automation. The present invention provides a method for predicting the risk of acquiring influenza, which comprises measuring the ratio of anti-influenza IgA to the total IgA in a specimen collected from a subject.
摘要:
An optical measuring apparatus comprises: an illuminating section that illuminates a first object with a first light; a light changing section that changes an intensity of the first light illuminating the first object; a light receiving device that receives a second light transmitted through or reflected from the first object; and an output section that outputs a measurement result according to i) a state of the light changing section and ii) an amount of the second light received by the light receiving device. In addition, an optical measuring apparatus comprises: the illuminating section; the light receiving device; a light receiving time changing section that changes a light receiving time of the light receiving device; and an output section that outputs a measurement result according to i) the light receiving time and ii) an amount of the second light received by the light receiving device.