JPS567040A - Correcting temperature of atomizer - Google Patents
Correcting temperature of atomizerInfo
- Publication number
- JPS567040A JPS567040A JP8316179A JP8316179A JPS567040A JP S567040 A JPS567040 A JP S567040A JP 8316179 A JP8316179 A JP 8316179A JP 8316179 A JP8316179 A JP 8316179A JP S567040 A JPS567040 A JP S567040A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- atomizer
- current
- temperature
- voltage
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
- G01N21/74—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited using flameless atomising, e.g. graphite furnaces
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
PURPOSE:To accurately and readily correct the temperature of the atomizer of an atomic absorption photometer into the expected setting temperature by electrically heating the sample container, controlling the applied current according to the resistance. CONSTITUTION:With switch 22 and 24 changed over to CHECK, the voltage set by a variable resistor 21 is applied to a constant-current circuit, so that a check current I0 flows through an atomizer graphite tube 1 of a sample container. Consequently, a voltage Vm across the tube 1 according to the resistance of the tube 1 is detected. Then, a voltage V0 across a standard graphite tube detected when the current I0 was supplied, and stored in a memory 26 of a CPU is read out through an analog/digital converter 24, and after a correction coefficient (V0/Vm)<1/2> is calculated and stored, the output of a heating program control circuit 28 is corrected by a corrector 27, converted into analog, and a correction value is set. Thus, the constant current applied to the tube 1 is controlled, so that the temperature of the atomizer can be accurately and readily corrected into the expected setting temperature by applying a given power even when the tube 1 has been changed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8316179A JPS6045820B2 (en) | 1979-06-29 | 1979-06-29 | Atomizer temperature correction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8316179A JPS6045820B2 (en) | 1979-06-29 | 1979-06-29 | Atomizer temperature correction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS567040A true JPS567040A (en) | 1981-01-24 |
| JPS6045820B2 JPS6045820B2 (en) | 1985-10-12 |
Family
ID=13794522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8316179A Expired JPS6045820B2 (en) | 1979-06-29 | 1979-06-29 | Atomizer temperature correction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6045820B2 (en) |
-
1979
- 1979-06-29 JP JP8316179A patent/JPS6045820B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6045820B2 (en) | 1985-10-12 |
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