JPH01105453A - Mass spectrometer - Google Patents

Mass spectrometer

Info

Publication number
JPH01105453A
JPH01105453A JP62262355A JP26235587A JPH01105453A JP H01105453 A JPH01105453 A JP H01105453A JP 62262355 A JP62262355 A JP 62262355A JP 26235587 A JP26235587 A JP 26235587A JP H01105453 A JPH01105453 A JP H01105453A
Authority
JP
Japan
Prior art keywords
pulse
intensity
signal
amplification factor
pulse ionization
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62262355A
Other languages
Japanese (ja)
Inventor
Hiroto Itoi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimadzu Corp
Original Assignee
Shimadzu Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shimadzu Corp filed Critical Shimadzu Corp
Priority to JP62262355A priority Critical patent/JPH01105453A/en
Publication of JPH01105453A publication Critical patent/JPH01105453A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To expand the dynamic range by setting the intensity of the next pulse ionization based on the ion signal intensity of one or more times of recent pulse intensity and setting the signal amplification factor of the next detection so as to compensate the change of the pulse ionization intensity.
CONSTITUTION: Pulse ionizing means 5 and 6 changing the pulse ionization intensity and a signal amplifying means 9 changing the signal amplification factor of the detected ion signal are provided. A CPU 11 receives the ion signal via an input/output unit 10, stores it in a memory 12, sets the pulse ionization time, outputs the pulse ionization time control signal to a pulse ionization controller 6 via the input/output unit 10, sets the amplification factor so as to compensate the ion quantity change with the change of the pulse ionization time, and outputs the amplification factor control signal to an amplifier 9. The dynamic range is thereby expanded and the sensitivity can be improved without largely complicating the device and extending the detection time.
COPYRIGHT: (C)1989,JPO&Japio
JP62262355A 1987-10-17 1987-10-17 Mass spectrometer Pending JPH01105453A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62262355A JPH01105453A (en) 1987-10-17 1987-10-17 Mass spectrometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62262355A JPH01105453A (en) 1987-10-17 1987-10-17 Mass spectrometer

Publications (1)

Publication Number Publication Date
JPH01105453A true JPH01105453A (en) 1989-04-21

Family

ID=17374592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62262355A Pending JPH01105453A (en) 1987-10-17 1987-10-17 Mass spectrometer

Country Status (1)

Country Link
JP (1) JPH01105453A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006517723A (en) * 2003-01-24 2006-07-27 サーモ フィニガン エルエルシー Control of ion population in a mass spectrometer.
JP2006343319A (en) * 2005-05-12 2006-12-21 Hitachi High-Technologies Corp Data processor for mass spectrometric analysis

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006517723A (en) * 2003-01-24 2006-07-27 サーモ フィニガン エルエルシー Control of ion population in a mass spectrometer.
JP2006343319A (en) * 2005-05-12 2006-12-21 Hitachi High-Technologies Corp Data processor for mass spectrometric analysis

Similar Documents

Publication Publication Date Title
JPS57138208A (en) Power detecting circuit and gain control circuit using it
JPH0338907A (en) Transmission output power controller
JPH01105453A (en) Mass spectrometer
JPS6318257A (en) Monitor for plant growth state
JPS63138203A (en) Original size detecting device
JPS617491A (en) Signal processing circuit
JPS558657A (en) Signal delay circuit
JPS52102657A (en) Transistor amplifier circuit
FR2405609A1 (en) Volume control system for public address network - uses detected level of output sound to control amplification of broadcast
JPH04267614A (en) Limiter circuit
JPS63152206A (en) Amplifier circuit
JPS53105962A (en) Voltage amplifier
JPS5595180A (en) Error correcting unit of integrator
JPS63245850A (en) Metastable ion energy analyzer
JPS5385449A (en) Zero point detecting system
JPS5430542A (en) Gas combustion volume controller
JPH02118712A (en) Coordinate input device
JPS5226199A (en) Alarm range control method
JPS5730255A (en) Mass spectrograph
JPS5231644A (en) Amplifying detector
JPS5418783A (en) Level display device
JPS5960379A (en) Pulse detector
JPH04135343A (en) Light receiving system
JPS62167495A (en) Radiation pileup detection circuit
JPH01170226A (en) Digital controlled agc circuit