Analytical apparatus using nebulizer

An analytical apparatus using a nebulizer, comprising:

• a container for storing a sample solution therein;
• a pump for feeding the sample solution from said container to said nebulizer;
• a gas supply means, including a pressure regulating valve, for supplying a gas under pressure to said nebulizer;
• said nebulizer comprising:
• a first member and a second member which form a chamber;
• a plate having a plurality of orifices;
• a first aperture in said first member for gas inlet into which the gas under pressure is supplied;
• a second aperture in said second member for fixing said place;
• a plurality of tubes for respectively delivering said sample solution;
• and
• a fixing tube for fixing said tubes,
• wherein one end of each of said tubes is respectively placed in one of said orifices, a diameter of said second aperture is smaller than that of said chamber, and a compressed gas and said sample solution flow together through said orifices at a supersonic speed to form spray gas containing the sample solution;
• and
• wherein said analytical apparatus further comprises:
• a liquid delivery unit for delivering the sample solution from said pump to said nebulizer;
• a spray chamber for receiving the spray gas from said orifices, said spray chamber being cooled or heated;
• and
• a plasma analyzer and a tube connecting a gas introduction unit of said plasma analyzer and said spray chamber.