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1. JP2007010683 - DETECTION METHOD AND DETECTION SYSTEM USING ION TRAP MASS SPECTROMETER

Office
Japan
Application Number 2006239725
Application Date 05.09.2006
Publication Number 2007010683
Publication Date 18.01.2007
Publication Kind A
IPC
G01N 27/62
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
62by investigating the ionisation of gases; by investigating electric discharges, e.g. emission of cathode
Applicants HITACHI LTD
株式会社日立製作所
Inventors TAKADA YASUAKI
高田 安章
SAKAIRI MINORU
坂入 実
Agents 井上 学
Title
(EN) DETECTION METHOD AND DETECTION SYSTEM USING ION TRAP MASS SPECTROMETER
(JA) イオントラップ質量分析計を用いた探知方法及び探知装置
Abstract
(EN)

PROBLEM TO BE SOLVED: To provide a detection system for explosive substances, banned drugs and the like, which operates with less false reports at a high speed, by using a high-speed screening mode and a high-selective detail checking mode at the same time.

SOLUTION: In a detection method using a mass spectrometer, the screening is carried out at a high speed by using a step (201) of acquiring a mass spectrum and a step (202) of determining whether or not an intrinsic m/z ion exists, and then an analysis condition is read from a database in accordance with a determination result of the determining step (202), and changing to a step (203) of conducting a tandem mass spectrometry is carried out in order to check details. Then, a step (204) of determining whether or not the intrinsic m/z ion exists, is carried out based on a result obtained by the tandem mass spectrometry.

COPYRIGHT: (C)2007,JPO&INPIT

(JA)

【課題】タンデム質量分析法は、通常の質量分析法に比べて時間がかかるため、探知装置に求められる探知スピードが達成できなかった。
【解決手段】質量分析装置を用いた分析方法において、質量スペクトルを取得するステップ(201)と、固有のm/zのイオンが存在するか判定するステップ(202)を用いて高速でスクリーニングを行う。前記判定するステップ(202)の判定結果に応じて分析条件をデータベースから読み込み、タンデム質量分析を行うステップ(203)に切り替え、精査する。タンデム質量分析法で得られた結果から、固有のm/zのイオンが存在するか判定するステップ(204)を行う。
【選択図】図1