JPS6435846A - Ion source for mass spectrograph - Google Patents
Ion source for mass spectrographInfo
- Publication number
- JPS6435846A JPS6435846A JP62192097A JP19209787A JPS6435846A JP S6435846 A JPS6435846 A JP S6435846A JP 62192097 A JP62192097 A JP 62192097A JP 19209787 A JP19209787 A JP 19209787A JP S6435846 A JPS6435846 A JP S6435846A
- Authority
- JP
- Japan
- Prior art keywords
- sample liquid
- ion source
- seeping
- cap
- opening
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 abstract 4
- 230000002093 peripheral effect Effects 0.000 abstract 1
Landscapes
- Electron Sources, Ion Sources (AREA)
- Electron Tubes For Measurement (AREA)
Abstract
PURPOSE:To completely prevent the memory phenomenon by providing a primary beam shielding body near the periphery where an opening specifying the seeping region of a sample liquid is in contact with the surface of a porous member. CONSTITUTION:A porous member 10 is fitted to the tip of a tube 7 guiding a sample liquid into an ion source 2 from the outside, the seeping region of the sample liquid seeping on the surface is specified by an opened cap 13, and an orifice plate 15 with a window smaller than an opening 12 is fitted at the tip of the cap 13. Even if the sample liquid is accumulated at the peripheral portion (a) of the opening 12 of the cap 13, this portion is shielded by the orifice plate 15 according to this constitution, no primary beam is radiated and ionized. The ion source of a mass spectrograph completely preventing the memory phenomenon can be obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62192097A JPH0626108B2 (en) | 1987-07-31 | 1987-07-31 | Ion source for mass spectrometer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62192097A JPH0626108B2 (en) | 1987-07-31 | 1987-07-31 | Ion source for mass spectrometer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6435846A true JPS6435846A (en) | 1989-02-06 |
JPH0626108B2 JPH0626108B2 (en) | 1994-04-06 |
Family
ID=16285595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62192097A Expired - Lifetime JPH0626108B2 (en) | 1987-07-31 | 1987-07-31 | Ion source for mass spectrometer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0626108B2 (en) |
-
1987
- 1987-07-31 JP JP62192097A patent/JPH0626108B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0626108B2 (en) | 1994-04-06 |
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