| 摘要 |
PROBLEM TO BE SOLVED: To provide a mass calibration method having a wide application range, capable of calibrating a mass accurately and simply. SOLUTION: In this mass calibration method for mass, a combination of a plurality of kinds of sugar chains different each other in the numbers of constitutive sugars, using one or a plurality of kinds of monosaccharides having the same molecular weight, as the constitutive sugars, is used as a standard substance for the mass calibration. Preferably, the plurality of kinds of sugar chains are used as a mixture; each of the sugar chains is a cyclic sugar chain, the number of the constitutive sugars is different by one among the plurality of kinds of respective sugar chains; and all the constitutive sugars of the sugar chains are the same kinds of monosaccharides. COPYRIGHT: (C)2006,JPO&NCIPI
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