Patent ID: 8030090

Claim:
A mass spectrometric analyzing apparatus comprising: a capillary for supplying a sample solution; means for forming an electric field in the vicinity of a tip of the capillary; means for adjusting a temperature of the sample solution inside the capillary or sprayed from the capillary; a first infrared laser light source configured to irradiate the vicinity of the tip of the capillary with an infrared laser beam; and means for introducing the sample solution sprayed from the tip of the capillary and any constituents of the sample formed upon irradiation of the sample with the infrared laser beam to a principal section of the mass spectrometric analyzing apparatus; wherein said temperature adjusting means comprises: a first outer tube disposed on an outer side of said capillary and spaced away from an outer peripheral surface of said capillary; and a second outer tube; which is shorter than said first outer tube, disposed in the vicinity of the tip of said capillary and spaced away from an outer side of said first outer tube; an assist gas that has been adjusted to different temperatures being supplied to the vicinity of the tip of said capillary through respective ones of spaces between said capillary and first outer tube and between said first outer tube and said second outer tube.