Patent ID: 6066298
Filing Date: 2000-05-23
Classification: G01N

Abstract:
A pretreatment apparatus for distributing a washing solution, comprising:a needle for sampling a liquid sample in a predetermined quantity;a needle holding mechanism for movably holding said needle;a pretreatment tank having a diluting tank, a liquid discharge tank integrally formed therewith, and a partition interposed between said diluting and said liquid discharge tanks, said diluting tank for receiving the predetermined quantity of the liquid sample and a diluting solution to form a diluted liquid sample, said liquid discharge tank for discharging waste liquid, said partition for introducing one of said diluted liquid sample and said washing solution flowing over said partition into said solution discharge tank, said diluting tank having an inlet for passing one of said washing solution and said diluted liquid sample into said diluting tank;a mixing fluid passage, for mixing the diluted liquid sample, extending from said inlet; andpipes and two syringes defining flow passages connecting said needle and said mixing fluid passage.