JPS63273046A - Atomic fluorescence analysis - Google Patents
Atomic fluorescence analysisInfo
- Publication number
- JPS63273046A JPS63273046A JP10462787A JP10462787A JPS63273046A JP S63273046 A JPS63273046 A JP S63273046A JP 10462787 A JP10462787 A JP 10462787A JP 10462787 A JP10462787 A JP 10462787A JP S63273046 A JPS63273046 A JP S63273046A
- Authority
- JP
- Japan
- Prior art keywords
- atoms
- microwave
- generated
- fluorescent cell
- wavelength
- 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
- 238000012921 fluorescence analysis Methods 0.000 title description 2
- 238000010521 absorption reaction Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 3
- 238000001391 atomic fluorescence spectroscopy Methods 0.000 claims 1
- 125000004429 atom Chemical group 0.000 abstract description 12
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract description 8
- 239000000243 solution Substances 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 6
- 125000004436 sodium atom Chemical group 0.000 abstract description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract description 4
- 239000007864 aqueous solution Substances 0.000 abstract description 4
- 229910052786 argon Inorganic materials 0.000 abstract description 4
- 239000007789 gas Substances 0.000 abstract description 2
- 239000011780 sodium chloride Substances 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 230000001678 irradiating effect Effects 0.000 abstract 1
- 239000011344 liquid material Substances 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 239000003495 polar organic solvent Substances 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6402—Atomic fluorescence; Laser induced fluorescence
- G01N21/6404—Atomic fluorescence
Landscapes
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、物質中の元素の定性分析、定量分析の方法に
関するもので、特に火力、原子力２次系の水質管理等に
適用しうるものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for qualitative and quantitative analysis of elements in substances, and is particularly applicable to water quality management in secondary systems of thermal power and nuclear power. It is.
従来の技術を第２図を用いて説明する。 The conventional technique will be explained using FIG. 2.
先づ、溶液にしたサンプルを試料容器ａからバーナーｂ
に吹き込み火炎を用いて原子を生成する。First, the sample made into a solution is transferred from the sample container a to the burner b.
Atoms are created using a flame.
次に、原子の吸収波長の光をアルゴンレーザＣによって
励起された色素レーザｄよシ発生させ、チヨツノ２−ｅ
によシ断続した光となし、この光を前記火炎に照射する
。火炎中の原子はレーザー光を吸収し、その後蛍光を発
する。この蛍光をレンズでで集光のうえ、干渉フィルタ
ーｇを通して光電子増倍管りで検出し、ロックインアン
プして増幅後、記鈴計ｊによυ記鎌する。Next, a dye laser d excited by an argon laser C generates light at the absorption wavelength of the atoms, and a chiyotsuno 2-e
The flame is illuminated with intermittent light. Atoms in the flame absorb the laser light and then fluoresce. This fluorescence is collected by a lens, passed through an interference filter g, detected by a photomultiplier tube, amplified by a lock-in amplifier, and then recorded by a recording meter j.
前述のような従来の技術では、バーナーを用いて原子を
生成していた為、火炎からの発光が背景光となり、原子
蛍光と重畳されて観測され、火炎のゆらぎが雑音となる
という問題点があった。In the conventional technology mentioned above, atoms were generated using a burner, so the problem was that the light emitted from the flame became background light and was observed superimposed on the atomic fluorescence, and the fluctuations of the flame became noise. there were.
更に火炎の温度を任意に変化させることが困難な為、原
子化効率を制御できず、再現性が良くないという問題点
もあった。Furthermore, since it is difficult to arbitrarily change the temperature of the flame, there is a problem that the atomization efficiency cannot be controlled and the reproducibility is poor.
液体粒子を噴霧し粒径１０μ以下の微粒子として蛍光セ
ルに導入し、蛍光セル内でマイクロ波を照射し、気化、
原子化させる。Liquid particles are sprayed and introduced into a fluorescent cell as fine particles with a particle size of 10μ or less, and microwaves are irradiated within the fluorescent cell to vaporize and
Atomize.
蛍光セル内で液体微粒子がマイクロ涙金吸収し、昇温気
化、原子化される。Inside the fluorescent cell, liquid microparticles absorb micro-lacrimal gold, which is vaporized and atomized by heating.
原子は原子固有の吸収波長を有し、その波長の光を吸収
し、その後、同じ波長又はより長波長の蛍光を発する。Atoms have their own absorption wavelengths, absorb light at that wavelength, and then emit fluorescence at the same wavelength or a longer wavelength.
この蛍光強度を測定して１分析を行なう。One analysis is performed by measuring this fluorescence intensity.
第１図において、１は蛍光セル、２はマイクロ波発振器
、３はマイクロ波キャビティ、４はトラップ、５は真空
ポンプ、６はアルゴンレーザ、７は色素レーザ、８はチ
ョッパー、９は干渉フィルター、１０はレンズ、１１は
光電子増倍管、１２はストレージスコープ、１３はロッ
クインアンプ、１４は記録計である。In FIG. 1, 1 is a fluorescence cell, 2 is a microwave oscillator, 3 is a microwave cavity, 4 is a trap, 5 is a vacuum pump, 6 is an argon laser, 7 is a dye laser, 8 is a chopper, 9 is an interference filter, 10 is a lens, 11 is a photomultiplier tube, 12 is a storage scope, 13 is a lock-in amplifier, and 14 is a recorder.
ＮａＣｌ水溶液１ ｐｐｍを、 Ｈｅ ガスをキャリヤ
ーとして、１〜１００ Ｔｏｒｒ に保たれた蛍光セル
ＩＫ噴霧し供給する。マイクロ波発振器２で発振された
マイクロ波はマイクロ波キャビティ３に導ひかれる。蛍
光セル１は、マイクロ波キャビティ３内に設置され溶液
粒子は、低圧での蒸発及びマイクロ波の吸収によシ、水
溶液は蒸発し、 ＮａＣＪは蒸発固化後、Ｎａ原子に分
解され、下流に設置されたトラップ４を介し、真空ポン
プ５で排気される。1 ppm of NaCl aqueous solution is supplied by spraying into a fluorescent cell IK maintained at 1 to 100 Torr using He gas as a carrier. The microwave oscillated by the microwave oscillator 2 is guided to the microwave cavity 3. The fluorescent cell 1 is installed in the microwave cavity 3, and the solution particles are evaporated at low pressure and absorbed by the microwave, the aqueous solution is evaporated, NaCJ is decomposed into Na atoms after evaporation and solidification, and the solution is installed downstream. The air is evacuated by a vacuum pump 5 through a trapped trap 4.
アルゴンレーザー６によって励起された色素レーザー７
はチョッパー８によって断続され蛍光セルＩＫ入射され
る。蛍光セル１内で生成したＮａ原子は、波長５８９
ｎｍのレーザー光を吸収し、その後同波長の蛍光を発す
る。Dye laser 7 excited by argon laser 6
is interrupted by the chopper 8 and is incident on the fluorescent cell IK. Na atoms generated in the fluorescent cell 1 have a wavelength of 589
It absorbs laser light of nm wavelength and then emits fluorescence of the same wavelength.
蛍光セル１の出射窓から出てきた光を、中心波長が５８
９ ｎｍに設定された干渉フィルター９を通し、レンズ
１０で集光した後、光電子増倍管１１で検出し、ストレ
ージスコープ１２で観測又はロックインアンプ１３で増
幅後、記録計１４で記録する。The center wavelength of the light coming out of the emission window of fluorescent cell 1 is 58
After passing through an interference filter 9 set to 9 nm and condensing with a lens 10, it is detected with a photomultiplier tube 11, observed with a storage scope 12, or amplified with a lock-in amplifier 13, and then recorded with a recorder 14.
本発明に利用できる溶液は、酸、アルカリ、塩の水溶液
、或いは極性有機溶媒を含む溶液等の噴霧可能な液体で
あり、噴霧器で粒径１０μ以下１乃至２０ω／１１ｔｉ
Ｒで噴霧され、蛍光セル１に導入される。The solution that can be used in the present invention is a sprayable liquid such as an aqueous solution of an acid, an alkali, or a salt, or a solution containing a polar organic solvent.
R and introduced into the fluorescent cell 1.
溶液微粒子は蛍光セル１内で１周波数１００乃至３００
０ ＭＨｚ 、出力１０乃至１０００ Ｗのマイクロ波
を吸収し、昇温気化原子化される。The solution particles have a frequency of 100 to 300 in the fluorescent cell 1.
It absorbs microwaves with a frequency of 0 MHz and an output of 10 to 1000 W, and is vaporized and atomized by heating.
第１図の装置を用いて測定したＮａ原子の検出下限界と
他の方法との比較を下記の表に示す。The table below shows a comparison between the detection limit of Na atoms measured using the apparatus shown in FIG. 1 and other methods.
なお、従来法では１ ｐｐｂ以下の測定は不可能で原子
力でのＮａ（又はＣＩ＞の分析は現在サンプル水を１０
００倍に濃縮して測定するなどの手段が必要である。It should be noted that with conventional methods it is impossible to measure below 1 ppb, and nuclear power analysis of Na (or CI>) is currently performed using sample water of 10
It is necessary to measure the amount by concentrating it 00 times.
マイクロ波を用いて、液体粒子を気化、原子化すること
によシ、効率良く中性原子を生成でき、また背景光を低
減できる様になった。By using microwaves to vaporize and atomize liquid particles, it has become possible to efficiently generate neutral atoms and reduce background light.
更にマイクロ波電力は連続的に可変である為。Furthermore, microwave power is continuously variable.
中性原子を生成する最も良い条件を見出すことも簡単に
できる様になシ、原子の検出下限界を大幅に下げること
が可能になった。It has become easier to find the best conditions for generating neutral atoms, and it has become possible to significantly lower the detection limit of atoms.
第１図は本発明原子蛍光分析法の説明図、第２図は従来
法の説明図である。
１・・・蛍光セル ２・・・マイクロ波発振器３
・・・マイクロ波キャビティFIG. 1 is an explanatory diagram of the atomic fluorescence analysis method of the present invention, and FIG. 2 is an explanatory diagram of the conventional method. 1... Fluorescent cell 2... Microwave oscillator 3
...Microwave cavity
Claims (1)
ャビティを通過させて前記液状物質を気化、原子化させ
、生成した原子の吸収波長の光を前記原子に照射し、前
記原子からの蛍光を観測することを特徴とする原子蛍光
分析法。A liquid substance is sprayed and atomized, passed through a microwave cavity under low pressure conditions to vaporize and atomize the liquid substance, and the atoms are irradiated with light at the absorption wavelength of the generated atoms to emit fluorescence from the atoms. Atomic fluorescence spectrometry is characterized by observation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10462787A JPS63273046A (en) | 1987-04-30 | 1987-04-30 | Atomic fluorescence analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10462787A JPS63273046A (en) | 1987-04-30 | 1987-04-30 | Atomic fluorescence analysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63273046A true JPS63273046A (en) | 1988-11-10 |
Family
ID=14385676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10462787A Pending JPS63273046A (en) | 1987-04-30 | 1987-04-30 | Atomic fluorescence analysis |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63273046A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0360296A2 (en) * | 1988-09-23 | 1990-03-28 | Heinz Prof. Dr. Falk | Process and device for separating and determining atoms |
| CN102338745A (en) * | 2010-07-15 | 2012-02-01 | 北京吉天仪器有限公司 | Electro-thermal vaporization atomic fluorescence spectrometry method and spectrometer used for determining cadmium |
| CN107193035A (en) * | 2017-06-28 | 2017-09-22 | 华中科技大学 | The detection system and method for pump atom are returned in a kind of atomic interferometer based on microwave |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5032837A (en) * | 1973-05-11 | 1975-03-29 | Electroprint Inc |
-
1987
- 1987-04-30 JP JP10462787A patent/JPS63273046A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5032837A (en) * | 1973-05-11 | 1975-03-29 | Electroprint Inc |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0360296A2 (en) * | 1988-09-23 | 1990-03-28 | Heinz Prof. Dr. Falk | Process and device for separating and determining atoms |
| CN102338745A (en) * | 2010-07-15 | 2012-02-01 | 北京吉天仪器有限公司 | Electro-thermal vaporization atomic fluorescence spectrometry method and spectrometer used for determining cadmium |
| CN107193035A (en) * | 2017-06-28 | 2017-09-22 | 华中科技大学 | The detection system and method for pump atom are returned in a kind of atomic interferometer based on microwave |
| CN107193035B (en) * | 2017-06-28 | 2023-11-14 | 华中科技大学 | Detection system and method based on microwave pump-back atoms in atomic interferometer |
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