JPS5485797A - Ion detecting method of mass spectrometer - Google Patents
Ion detecting method of mass spectrometerInfo
- Publication number
- JPS5485797A JPS5485797A JP15289077A JP15289077A JPS5485797A JP S5485797 A JPS5485797 A JP S5485797A JP 15289077 A JP15289077 A JP 15289077A JP 15289077 A JP15289077 A JP 15289077A JP S5485797 A JPS5485797 A JP S5485797A
- Authority
- JP
- Japan
- Prior art keywords
- ion
- mass number
- mass
- detector
- recorder
- 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
Links
Landscapes
- Electron Tubes For Measurement (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
PURPOSE: To improve the quality of ion quantity monitoring and obtain good mass spectra by operating an ion detector only when the mass number having been detected is within the spectified range.
CONSTITUTION: At the time of performing mass number scanning for ion detection, integrating the output waveforms of a detector 4 via ion detector 8 and recording the same in an ion recorder 9, the range of their taking-in is beforehand set. Namely, only when the mass number from a mass display device 6 enters the inside of the range of the upper and lower limit values of the mass number having been set with digital switches 16, 15 by using comparators 12, 11, by way of a gate circuit 10 the integrating circuit of the ion detector 8 is opened, whereby ion monitoring of good quality is accomplished. Next, when the sensitivity has become sufficiently high while the ion recorder 9 is being observed, the mass number scanning for ion detection is stopped to stop the function of the ion detector 8 and start the mass number scanning for obtaining mass spectra, thus the mass spectra of good quality are recorded in the recorder 5 with good sensitivity.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15289077A JPS5485797A (en) | 1977-12-21 | 1977-12-21 | Ion detecting method of mass spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15289077A JPS5485797A (en) | 1977-12-21 | 1977-12-21 | Ion detecting method of mass spectrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5485797A true JPS5485797A (en) | 1979-07-07 |
Family
ID=15550354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15289077A Pending JPS5485797A (en) | 1977-12-21 | 1977-12-21 | Ion detecting method of mass spectrometer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5485797A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6148558U (en) * | 1984-08-29 | 1986-04-01 | ||
| JPH04319244A (en) * | 1991-04-18 | 1992-11-10 | Ebara Res Co Ltd | Mass spectrometer |
| JPH04319659A (en) * | 1991-04-18 | 1992-11-10 | Ebara Res Co Ltd | Gas detector |
-
1977
- 1977-12-21 JP JP15289077A patent/JPS5485797A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6148558U (en) * | 1984-08-29 | 1986-04-01 | ||
| JPH0342613Y2 (en) * | 1984-08-29 | 1991-09-06 | ||
| JPH04319244A (en) * | 1991-04-18 | 1992-11-10 | Ebara Res Co Ltd | Mass spectrometer |
| JPH04319659A (en) * | 1991-04-18 | 1992-11-10 | Ebara Res Co Ltd | Gas detector |
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