Mass analyzing apparatus, analyzing method and calibration sample

摘要

The mass analyzing apparatus of the present invention can achieve the speed-up and simplification of the formation of a calibration curve for quantifying an analysis object in a mass analyzing apparatus. The mass analyzing apparatus is provided with: a sample storage-dilution unit 1 for storing samples of the analysis object including a quantitative calibrator in which, with respect to one analysis object to be quantified, two or more kinds of compounds selected from the analysis object, a plurality of stable isotope compounds of the analysis object and a plurality of analogue compounds of the analysis object are mixed at respectively different concentrations; an ionizing unit 5 for ionizing a sample; a mass analyzing unit 6 for analyzing the ionized sample; and a data processing unit 7 in which, based on results of analysis of the quantitative calibrator carried out by the mass analyzing unit 6, two or more concentrations are measured, and the analysis object is quantified based on information of the measurement.

主权项

1. An analyzing method in an analyzing apparatus for quantifying an analysis object,
wherein, in order to quantify one analysis object by forming a multi-point calibration curve, two or more substances are selected from a standard substance of the analysis object, a stable isotope compound of the analysis object and an analogue compound of the analysis object as a calibrator for calibration curve, a calibrator for multi-point calibration curve is prepared by mixing the two or more substances at different concentrations, the calibrator for calibration curve is measured once, thereby forming a multi-point calibration curve, a real sample of the analysis object is measured, the measured value of the real sample is quantified by applying it to the calibration curve, and in the calibrator for calibration curve, a concentration of a calibration substance with the second highest concentration is not less than one tenth of a concentration of a calibration substance with the highest concentration.