ANALYSIS DATA PROCESSING METHOD AND DEVICE

Title:

ANALYSIS DATA PROCESSING METHOD AND DEVICE

Document Type and Number:

WIPO Patent Application WO/2016/103312

Kind Code:

A1

Abstract:

In the present invention, when imaging mass spectrometry is carried out on an area to be measured on a sample, an individual reference value calculation unit (21) determines a maximum Pi/Ii value for measurement points (where Pi is a TIC value and Ii is a maximum intensity value) and saves the same to an external storage device (3) as an individual reference value together with measurement data. When a plurality of data sets obtained from different samples are compared and analyzed, a common reference value determination unit (22) reads the plurality of corresponding individual reference values and makes the smallest value a common reference value Fmin. A normalization calculation processing unit (23) normalizes each intensity value read from the external storage device (3) by multiplying the value by a normalization coefficient long_MaxX (Fmin/Pi) determined from the common reference value Fmin, the TIC value Pi for each measurement point, and the maximum allowed value long_Max of a variable storing the intensity value during calculation. As a result, it is possible to simply normalize intensity values between a plurality of mass spectrometry image data items, avoid overflow during calculation, and minimize rounding errors.

Inventors:

IKEGAMI MASAHIRO (JP)
KAJIHARA SHIGEKI (JP)

Application Number:

PCT/JP2014/083864

Publication Date:

June 30, 2016

Filing Date:

December 22, 2014

Export Citation:

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Assignee:

SHIMADZU CORP (JP)

International Classes:

G01N27/62

Domestic Patent References:

WO2014175211A1

2014-10-30

Foreign References:

JP2014215043A

2014-11-17

Other References: