초록 ▼

A chemical analyzer is disclosed in which a sample is supplied from a sample cup on a sample table to an array of reaction cups on a reaction table so that the reaction cups contain the same amount of sample, a reagent pipetting nozzle sucks an appropriate reagent solution from an array of reagent t

A chemical analyzer is disclosed in which a sample is supplied from a sample cup on a sample table to an array of reaction cups on a reaction table so that the reaction cups contain the same amount of sample, a reagent pipetting nozzle sucks an appropriate reagent solution from an array of reagent tanks and discharges the reagent solution into a corresponding reaction cup, the sample having reacted with the reagent solution is optically measured by a multi-wavelength photometer, a plurality of reagent tanks containing different reagent solutions are placed in a refrigerator with the openings of the reagent tanks being directed upward, the refrigerator is provided with a cover which has holes provided at positions corresponding to the openings of the reagent tanks, these holes are closed by a shutter except when the reagent pipetting nozzle is inserted into these holes, the array of reaction cups is immersed in constant-temperature-water contained in a reaction bath, the reaction bath is supplied with water which is kept at 37°C. in a liquid bath by means of an evaporator and a heater, and a refrigerant from a refrigerating machine passes through an evaporator provided in the refrigerator and the evaporator provided in the liquid bath to be returned to the refrigerating machine.

대표청구항 ▼

A chemical analyzer comprising: a reaction bath containing a liquid for immersing therein an array of reaction cups, said reaction cups containing a sample to be analyzed and a reageant; means for analyzing said sample, with said reagent, operatively associated with said reaction cups; refrigerant c

A chemical analyzer comprising: a reaction bath containing a liquid for immersing therein an array of reaction cups, said reaction cups containing a sample to be analyzed and a reageant; means for analyzing said sample, with said reagent, operatively associated with said reaction cups; refrigerant conduit means including first and second series-connected evaporators for supplying a refrigerant from a refrigerating machine to said second evaporator through said first evaporator and then returning said refrigerant to said refrigerating machine; reagent cold-storage means having a chamber capable of retaining a plurality of reagent tanks, said first evaporator being disposed in said reagent cold-storage means, air in said chamber being cooled by said first evaporator so as to be kept at a predetermined temperature; liquid bath means for maintaining said liquid supplied to said reaction bath at a predetermined temperature in the vicinity of ordinary temperature, said second evaporator being disposed in said liquid bath means and; bypass conduit means providing one flow path in parallel with said first evaporator and another flow path in parallel with said second evaporator whereby said refrigerant is allowed to by-pass at least one of said first and said second evaporators when the temperature therein falls below the predetermined temperature.