| 摘要 |
PROBLEM TO BE SOLVED: To provide a sample target which enhances the measuring sensitivity of a low-molecular compound and is able to ionize a substance with a high-molecular weight of above 30,000 in mass analysis enabling the ionization of a sample without using a matrix, its manufacturing method and a mass analyzer using the sample target. SOLUTION: The sample target is used for holding the sample when the sample is ionized by the irradiation with a laser beam to perform mass analysis and has a surface, which receives the irradiation with the laser beam and has a plurality of recessed parts repeatedly formed thereto, as a sample holding surface. The surface of the sample holding surface excepting a part of the inner surfaces of the recessed parts is covered with a metal and/or a semiconductor and a part uncovered with the metal and/or the semiconductor is present on the inner surfaces of the recessed parts. COPYRIGHT: (C)2010,JPO&INPIT
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