CN200950121Y - Mercury element lamp stabilizing device for atomic fluorescence measurement - Google Patents
Mercury element lamp stabilizing device for atomic fluorescence measurement Download PDFInfo
- Publication number
- CN200950121Y CN200950121Y CN 200620117613 CN200620117613U CN200950121Y CN 200950121 Y CN200950121 Y CN 200950121Y CN 200620117613 CN200620117613 CN 200620117613 CN 200620117613 U CN200620117613 U CN 200620117613U CN 200950121 Y CN200950121 Y CN 200950121Y
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- Prior art keywords
- element lamp
- mercury element
- mercury
- temperature
- lamp
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- Expired - Fee Related
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The utility model relates to an Hg element lamp stabilizing device for measuring fluorimeter, which includes a heater positioned out of the outer cover of the Hg element lamp; a temperature testing device is positioned on the surface of the heater which contacts the Hg element lamp and a temperature control meter. The device controls the Hg element lamp in certain temperature, so as to solve the defect of one-way drifting of the Hg element lamps and greatly improve the strength of the lamp.
Description
Technical field
The utility model relates to a kind of measuring equipment, specifically, relates to a kind of Mercury element lamp stabilising arrangement that the atomic fluorescence instrument is measured that is used for.
The utility model background
When using atomic fluorescence device to measure mercury, use the light source of Mercury element lamp, so the intensity of Mercury element lamp and stability can directly have influence on the result that atomic fluorescence device is surveyed mercury as instrument.According to the principle of Mercury element lamp, the intensity of Mercury element lamp and its inner mercury vapor pressure are directly related, and near the vapor pressure of mercury room temperature raises and obviously increase with temperature, so the intensity of Mercury element lamp is directly related with its temperature simultaneously.Using Mercury element lamp to carry out in the atomic fluorescence measuring process, its temperature can slowly raise, and also slowly increases in corresponding its luminous intensity measurement process, causes measuring stability significantly to descend.In order to address this problem, usually adopt the preheating that reaches a few hours, but the method is loaded down with trivial details, consuming time, and effect is not really desirable.
The utility model content
The purpose of this utility model is said and is overcome above-mentioned defective, and a kind of Mercury element lamp locating device that the atomic fluorescence instrument is measured that is used for is provided.
Described in the utility modelly be used for the Mercury element lamp locating device that the atomic fluorescence instrument is measured, comprise being positioned at that Mercury element lamp is outer to cover outer well heater, at the temperature measuring equipment and the temperature control table that is connected with temperature measuring equipment of well heater with the one side setting of the contact of Mercury element lamp.
Described well heater comprises heating arrangement and is arranged on its outer heat-insulation layer.
Described heating arrangement is heating wire, Electric radiant Heating Film, hot water jacket or hot-air chuck; Described heat-insulation layer is asbestos, glass fibre, ceramic fiber, foam polymer material or cotton, hair, chemical fibre textile.
Described temperature measuring equipment is an occasionally thermal resistance of thermoelectricity.
Mercury element lamp locating device described in the utility model has overcome the defective of prior art, has solved the shortcoming of the unidirectional drift of Mercury element lamp, has also significantly improved the intensity of Mercury element lamp simultaneously.This device makes Mercury element lamp can obtain stable higher-strength at short notice to the access method of Mercury element lamp, atomic fluorescence measuring stability and sensitivity have been improved, and make the vapor pressure of the inner mercury of Mercury element lamp reach constant, this moment, the intensity of Mercury element lamp also reached constant, no longer fluctuateed.In addition, Mercury element lamp is under this use-pattern, and the vapor pressure of its inner mercury is also many than exceeding under the room temperature, so the intensity after it is stablized also is greatly improved.
Description of drawings
Fig. 1 is the synoptic diagram of Mercury element lamp stabilising arrangement described in the utility model;
Fig. 2. be the A-A section amplification figure of Fig. 1, the structural representation of expression Mercury element lamp heating arrangement;
Fig. 3 is the normalization fluorescent value curve over time of the mercury standard solution of 1 micrograms per litre under the different condition;
Fig. 4 is the fluorescent value of the mercury standard solution of 1 micrograms per litre under the different condition.
Embodiment
Referring to Fig. 1 and 2, the Mercury element lamp locating device that is used for the measurement of atomic fluorescence instrument described in the utility model, comprise being positioned at that Mercury element lamp 1 is outer to cover outer well heater 2, at the temperature measuring equipment 3 and the temperature control table (do not look out) that with temperature measuring equipment 3 be connected of well heater 2 with the one side setting of Mercury element lamp contact.
Described well heater 2 has heating arrangement 21, is used for the Mercury element lamp heating is had heat-insulation layer 22 in heating arrangement 21 outsides.Described heating arrangement 21 can be a heating wire, Electric radiant Heating Film, hot water jacket or hot-air chuck.Described heat-insulation layer 22 can be asbestos, glass fibre, ceramic fiber, foam polymer material or cotton, hair, chemical fibre textile, and its function is to prevent heat dissipation, auxiliary constant temperature.
Described temperature measuring equipment 3 can be thermopair, thermal resistance, and its function is to measure the Mercury element lamp surface temperature.The common Mercury element lamp thermostat of forming of this thermostat and temperature control table 4.
When this device uses, earlier the temperature control table is set in any temperature between 45～70 ℃, make well heater 21 begin the Mercury element lamp heating, the mercury element surface temperature finally makes the mercury element surface temperature constant in design temperature by temperature element 3 feedback meeting temperature control tables 4.At this moment, the vapor pressure of the inner mercury of Mercury element lamp will reach constant, and this moment, the intensity of Mercury element lamp also reached constant, no longer fluctuateed.In addition, Mercury element lamp is under this use-pattern, and the vapor pressure of its inner mercury is also many than exceeding under the room temperature, so the intensity after it is stablized also is greatly improved.
For the effect of this device is described, the utility model has contrasted and has used this device and do not use this device under same Other Instruments condition (seeing table 1 for details), records atomic fluorescence measured value that data draw curve (Fig. 3,4) over time according to atomic fluorescence.The normalization fluorescent value that has provided the mercury standard solution of 1 micrograms per litre under the different condition among Fig. 3 is curve over time, ordinate is the normalization fluorescent value among the figure, horizontal ordinate is the time, square, circle, go up triangle and play triangle (■, ●, ▲, ) represent the Different Results that obtains with the temperature rising respectively.As we know from the figure, with the raising of thermostat temperature, the distribution of measured value significantly narrows down, and never the unidirectional drift during constant temperature changes for the later random fluctuation of constant temperature.Provided the fluorescent value of the mercury standard solution of 1 micrograms per litre under the different condition among Fig. 4, among the figure ordinate for recording fluorescent value, the fluorescent value that records when representation temperature raises respectively by left-to-right histogram.Therefrom as can be known, this fluorescent value significantly rises after having used thermostat.
Table 1
| Experimental apparatus | AFS-930 |
| The photomultiplier negative high voltage | 290v |
| Lamp current | 30mA/0 |
| Carrier gas/shield gas flow amount | 400/800ml/min |
| The atomization height | 8mm |
| Reading duration/time delay | 7s/1.5s |
| Current-carrying acid | 4%HCL solution |
| Reductive agent | 0.5% potassium hydroxide+1%NaBH 4 |
| The mercury | 1 micrograms per litre |
| Sample size | 1.2ml |
| The soda acid ratio | 4.7∶2.2 |
Claims (4)
1, is used for the Mercury element lamp stabilising arrangement that the atomic fluorescence instrument is measured, it is characterized in that comprising the well heater (2) that is positioned at outside the outer covering of Mercury element lamp (1), temperature measuring equipment (3) and the temperature control table (4) that is connected with temperature measuring equipment (3) that the one side that contacts in it (1) of well heater (21) and Mercury element lamp is provided with.
2, locating device according to claim 1 is characterized in that described well heater (2) comprises heating arrangement (21) and is arranged on its outer heat-insulation layer (22).
3, locating device according to claim 2 is characterized in that described heating arrangement (21) is heating wire, Electric radiant Heating Film, hot water jacket or hot-air chuck; Described heat-insulation layer (22) is asbestos, glass fibre, ceramic fiber, foam polymer material or cotton, hair, chemical fibre textile.
4,, it is characterized in that described temperature measuring equipment (3) is an occasionally thermal resistance of thermoelectricity according to claim 1 or 2 or 3 described locating devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620117613 CN200950121Y (en) | 2006-05-24 | 2006-05-24 | Mercury element lamp stabilizing device for atomic fluorescence measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620117613 CN200950121Y (en) | 2006-05-24 | 2006-05-24 | Mercury element lamp stabilizing device for atomic fluorescence measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200950121Y true CN200950121Y (en) | 2007-09-19 |
Family
ID=38892662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620117613 Expired - Fee Related CN200950121Y (en) | 2006-05-24 | 2006-05-24 | Mercury element lamp stabilizing device for atomic fluorescence measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200950121Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113340857A (en) * | 2021-04-16 | 2021-09-03 | 湖北省地质实验测试中心(国土资源部武汉矿产资源监督检测中心) | Method for improving stability and signal-to-noise ratio of atomic fluorescence measurement of mercury element |
-
2006
- 2006-05-24 CN CN 200620117613 patent/CN200950121Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113340857A (en) * | 2021-04-16 | 2021-09-03 | 湖北省地质实验测试中心(国土资源部武汉矿产资源监督检测中心) | Method for improving stability and signal-to-noise ratio of atomic fluorescence measurement of mercury element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070919 Termination date: 20140524 |