JPS63154945A - Analysis of glass - Google Patents

Analysis of glass

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Publication number
JPS63154945A
JPS63154945A JP30248186A JP30248186A JPS63154945A JP S63154945 A JPS63154945 A JP S63154945A JP 30248186 A JP30248186 A JP 30248186A JP 30248186 A JP30248186 A JP 30248186A JP S63154945 A JPS63154945 A JP S63154945A
Authority
JP
Japan
Prior art keywords
glass
analysis
sample
hydrogen fluoride
aqueous solution
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
Application number
JP30248186A
Other languages
Japanese (ja)
Inventor
Akihiko Yajima
矢島 明彦
Seiji Sakai
清治 酒井
Osamu Horibata
堀端 修
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP30248186A priority Critical patent/JPS63154945A/en
Publication of JPS63154945A publication Critical patent/JPS63154945A/en
Pending legal-status Critical Current

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  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

PURPOSE:To enable significant improvement in analysis accuracy, by a method wherein hydrogen fluoride and hydrogen tetrafluoride are evaporated by heating after glass is dissolved and water or an acid aqueous solution is added thereto to prepare an analysis sample. CONSTITUTION:In an ICP analysis of glass, after an analysis sample is dissolved using hydrofloric acid, hydrogen fluoride and hydrogen tetrafluoride are evaporated by heating and water or an acid aqueous solution is add thereto to prepare an analysis sample. This provides an analysis in a system containing no hydrogen fluoride, which allows the use of a quartz-based torch with a high accuracy. The system also have no silicon as main component of glass, which enables measurement free from effect of silicon. The new water or acid aqueous solution based system is close in the viscosity to the original sample to stabilize the suction of the sample from an ICP neprizer. For reasons as mentioned above, analysis accuracy can be improved significantly.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はガラスの分析方法に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a method for analyzing glass.

〔発明の概要〕[Summary of the invention]

本発明は弗化水素を用いてガラスを溶解し1分析試料と
するガラスの工CP分析法において、ガラスを弗化水素
および四弗化ケイ素を加熱により蒸発させてから、■び
水または酸水溶液を添加して分析する。従来は弗化水素
酸溶液の、64、工CP分析を行なっていたので分析精
度t;あh″−らないという問題点を有してt、−+7
2が、本発明を用いることにより、飛降的に分析積電を
向上させろことが可能となった。
In the CP analysis method of glass, which uses hydrogen fluoride to melt glass and prepare one analysis sample, the present invention involves heating the glass to evaporate hydrogen fluoride and silicon tetrafluoride, and then Add and analyze. Conventionally, CP analysis of hydrofluoric acid solution was carried out, which had the problem that the analysis accuracy was not t, -+7.
2, by using the present invention, it has become possible to improve the analytical product in a flying manner.

近年1石英ガラス等の基板はハイテク分野に利用され、
要求されるガラス純変も牟々高水準となってきている。
In recent years, substrates such as 1 quartz glass have been used in high-tech fields,
The required glass purity has also become extremely high.

しため1つて品i管卵の面から亮精質の分析法を開発す
ることh;必要と言える。
Therefore, it is necessary to develop a method for analyzing the quality of the spermatozoa from the perspective of the quality of the eggs.

〔従来の技術〕[Conventional technology]

従来のガラスの工CP分析は弗化水素酸だ溶解し定試料
を弗酸溶液のまま測定してbた。
Conventional CP analysis of glass involves dissolving the sample in hydrofluoric acid and measuring the sample as it is in the hydrofluoric acid solution.

〔発明h;解決しようとする問題点〕[Invention h; Problem to be solved]

しかし、前述の従来技術では次のような問題点を有する
However, the above-mentioned conventional technology has the following problems.

(1)  弗化水素酸溶液のため、樗変の高いクォーツ
系のトーチが使用できず、テフロン系のトーチを使用し
なければならない。
(1) Because of the hydrofluoric acid solution, a quartz-based torch with a high degree of translucency cannot be used, and a Teflon-based torch must be used.

(2)  弗化水素だガラスを溶解するため、弗化水素
酸をガラスの数倍量添加せねばならず、実際の不純物製
電よりも低い濃度の試料を測定しなければならないので
精度がおちる。
(2) Hydrogen fluoride: In order to dissolve the glass, it is necessary to add several times the amount of hydrofluoric acid to the glass, and it is necessary to measure a sample with a lower concentration than the actual impurity production, which reduces accuracy. .

(3)  ガラスの主成分定るケイ素flt犬量に溶解
しているため、ケイ素の発光ピークが非常に大弾くなり
、バックグラウンドめ;安定しなかったり、ケイ素のピ
ークにかぐれてしまい、測定できない元素もでてくる。
(3) Because the main component of glass is silicon, which is dissolved in a fixed amount, the emission peak of silicon becomes very loud and becomes background; There are some elements that cannot be done.

(4)  弗化水素酸と四弗化ケイ素の溶液の粘性は比
較的犬鍍いため、■CPネブライザーからの吸収が安定
しにくい。
(4) Since the viscosity of a solution of hydrofluoric acid and silicon tetrafluoride is relatively low, absorption from ■CP nebulizer is difficult to stabilize.

〔問題点を解決−fるための手段〕[Means for solving problems]

本発明のガラスの工ap分析法は1分析試料を弗化水素
酸を甲いて溶解しt後、弗化水素および四弗化ケイ素を
加熱により蒸発させてから水あるいは酸水溶液を添加し
て分析試料とすることを特徴とする、 〔作用〕 本発明の上記の構成によれば1次のような理由により分
析精首を飛踵的如向上することができる、(1)  弗
化水素を含まない系での分析h1できろため、精度の高
いクォーツ系のトーチが使用できる、(2)  ガラス
を溶解させろために余分に添加した弗化水素酸を蒸発に
より除去できるため、ガラスの不純物濃叶と−(ロ)じ
不純物IIFの系をつくり、試料とすることができる。
The glass engineering analysis method of the present invention involves dissolving an analytical sample in hydrofluoric acid, evaporating hydrogen fluoride and silicon tetrafluoride by heating, and then adding water or an acid aqueous solution for analysis. [Function] According to the above-described structure of the present invention, the precision of analysis can be dramatically improved for the following reasons: (1) Hydrogen fluoride is not included. (2) Since the extra hydrofluoric acid added to melt the glass can be removed by evaporation, the concentration of impurities in the glass can be removed. A system of the same impurity IIF can be created and used as a sample.

(3)  ガラスの主成分たるケイ素は弗化水素に溶解
して四弗化ケイ素になるが、これは沸点が氷点下にある
ので加熱により容易に除去で弾る。したがって、ケイ素
りt存在しない系とすること六;で鎗バックグラウンド
に影響を及ぼさない。した111’、つて弗化水素溶液
試料の場合、ケイ素のピークにかくれてしまい、測定不
能でもった元素(例えば、ニッケル)でも測定b;容易
にできろ。
(3) Silicon, the main component of glass, dissolves in hydrogen fluoride to form silicon tetrafluoride, which has a boiling point below the freezing point and can be easily removed by heating. Therefore, by making the system free of silicon, the background will not be affected. In the case of a 111' hydrogen fluoride solution sample, even elements (such as nickel) that cannot be measured because they are hidden behind the silicon peak can be easily measured.

(4)弗化水素酸と四弗化ケイ素の系から、水または酸
水溶液の系に替わるため、粘性h;近くなり、工CPネ
ブライザーからの試料吸入h′−安定し、精度向上に寄
与する。
(4) Since the system of hydrofluoric acid and silicon tetrafluoride is replaced by the system of water or acid aqueous solution, the viscosity becomes closer to h', which stabilizes the sample intake from the CP nebulizer and contributes to improved accuracy. .

〔実施例〕〔Example〕

実施例1゜ 工Cフtトマスク基板のNj にニッケル)純貧と紫外
透過率の相関を求める定めに分析を行なりt、。
Example 1 An analysis was carried out to determine the correlation between pure impurity (Nj of nickel) and ultraviolet transmittance of a C foot mask substrate.

紫外透過率を測定した工Cフォトマスク基板から線質分
析用試料として5gのガラスを切り出した。切り出i、
たガラス片をアセトンに浸し、10分間超音波洗浄をし
た。次にガラス片8−純水でよく洗浄したあと、1規定
塩酸水溶液中に浸し、10分間放電して表面に寸着した
ゴミや、油分を除去した、再びガラス片を純水でよく洗
浄しfcあと、よく洗浄され之ポリプロピレン製のビン
に入れ、密閉した。次にガラス片の重さの5倍量の50
悌弗化水素酸(gb−ss グレード)を添加し、密閉
し+ 60 ’Cの栢温槽中に一昼夜密閉して放曾した
ところ、ガラス片は完全に溶解し7t6得られ次試料溶
液を充分に洗浄したテフロン製ビーカーに移し替え、オ
イルバス中で150℃にホールドシて弗化水素酸および
四弗化ケイ素を蒸発させて除去した。約2時間で弗化水
素および四弗化ケイ素は完全に蒸発し、あとだ若干のガ
ラスに含まれていた不純物h;残留した。残留物に1規
定の硝酸を添加し、加熱しなh;ら溶解した。不純物の
硝酸溶液を充分に洗浄されたポリプロピレン製容器にと
り、秤量しながら1N硝酸溶液を更廻添加し、溶液の重
量が、最初のガラス片と同様になるようにし之。− 以上の手煩で作成した分析サンプルを工CP(工on 
CoupHed Plasma )分析機にて分析し之
5 g of glass was cut out as a sample for radiation quality analysis from the C photomask substrate whose ultraviolet transmittance was measured. Cutout i,
The glass pieces were immersed in acetone and subjected to ultrasonic cleaning for 10 minutes. Next, glass piece 8 - After thoroughly washing with pure water, immersing it in a 1N hydrochloric acid aqueous solution and discharging it for 10 minutes to remove dirt and oil that had adhered to the surface. Wash the glass piece thoroughly with pure water again. After fc, it was thoroughly washed, placed in a polypropylene bottle, and sealed. Next, 50, which is 5 times the weight of the glass piece
When hydrofluoric acid (GB-SS grade) was added, the glass was sealed and allowed to stand overnight in a heat bath at +60'C, the glass pieces were completely dissolved and a sample solution of 7t6 was obtained. The mixture was transferred to a thoroughly washed Teflon beaker and held at 150° C. in an oil bath to evaporate and remove hydrofluoric acid and silicon tetrafluoride. Hydrogen fluoride and silicon tetrafluoride were completely evaporated in about 2 hours, leaving behind some impurities contained in the glass. 1N nitric acid was added to the residue and dissolved while heating. A nitric acid solution containing impurities was placed in a thoroughly cleaned polypropylene container, and while being weighed, 1N nitric acid solution was added until the weight of the solution was the same as that of the original glass piece. − The analysis sample created through the above steps is
Analyzed using a CoupHed Plasma analyzer.

トーチはクォーツ系のものを用いアルゴンプラズマに、
て行なった。糾明分析結果と紫外透過率の関係を第1表
に示す。
The torch is quartz-based and uses argon plasma.
I did it. Table 1 shows the relationship between the clear analysis results and the ultraviolet transmittance.

第1表 Ni純変と紫外透過嘉の測定 第1表かられかるようK NiI’t 260 nm 
 で紫外吸収のピークをもち、ピークの大きさf+”=
Niの量に依存していることが拓かる。
Table 1 Measurement of Ni purity and ultraviolet transmission
It has an ultraviolet absorption peak at , and the peak size is f+”=
It is revealed that it depends on the amount of Ni.

比較例1゜ 実施例1と同じサンプルを弗酸系にて純質分析を行なっ
之。
Comparative Example 1 The same sample as in Example 1 was analyzed for purity using a hydrofluoric acid system.

実施例1と同じサンプル2. O、li+を切り出し、
アセトンに浸し、10分間超音波洗浄を[7念。次にガ
ラス片を純水でよ〈洗浄したあと、1規定塩酸水溶液中
に浸し、10分間放買して表面に寸着したゴミや、油分
を除去した。再びガラス片をよく洗浄したあと、よく洗
浄されたポリプロピレン製容器にガラス片を移し替え之
。504弗化水素酸(F、L−sSグレード)をガラス
片の5倍1k(100C)添加した。密閉して60℃の
恒温槽で一昼夜放置]、たところ、ガラス片は完全に溶
解した。試料に更に5倍量の純水を添加し、トータルで
100倍量して、工CP4+析慢で分析を行なった。線
質分析結果と紫外透過率の関係を第2表に示す。測定は
テフロン系トーチで行なつ之。
Sample 2. Same as Example 1. Cut out O, li+,
Soak in acetone and perform ultrasonic cleaning for 10 minutes [7 times]. Next, after washing the glass piece with pure water, it was immersed in a 1N aqueous hydrochloric acid solution for 10 minutes to remove dirt and oil that had settled on the surface. After washing the glass pieces thoroughly again, transfer them to a well-washed polypropylene container. 504 hydrofluoric acid (F, L-sS grade) was added at 1k (100C) 5 times the amount of the glass piece. The glass pieces were completely dissolved after the glass was sealed and left in a constant temperature bath at 60° C. for a day and a night. Five times the amount of pure water was further added to the sample, making the total amount 100 times the amount, and analysis was performed using CP4+ analysis. Table 2 shows the relationship between the radiation quality analysis results and the ultraviolet transmittance. Measurements were performed using a Teflon torch.

紳変測定値はサンプル溶液htガラス重tに対して10
倍あることから、実測値の10倍としである。第2表か
られかるとおり、ガラスのNi純電と紫外透過率の間に
相間は見出せない。また、値のでないものと、でるもの
の差が極端である。以上のことから、弗酸系の測定では
純質測定結果があまり精Iの良いものではなかったと推
測され7t。
The measured value is 10 for the sample solution h and glass weight t.
Since it is twice as large, it is assumed to be 10 times the actual measurement value. As can be seen from Table 2, no correlation can be found between the Ni pure electricity and the ultraviolet transmittance of the glass. Also, the difference between those with no value and those with value is extreme. From the above, it can be inferred that the purity measurement results for hydrofluoric acid were not very accurate.7t.

〔発明の効果〕〔Effect of the invention〕

以上述べて般tように発明によれば、工CPによるガラ
ス中の不純物の定量において、ガラスを溶解しt後、弗
化水素卦よび四弗化ケイ素を加熱により蒸発させてから
水あるいは酸水溶液を添加して分析試料とすることによ
り、分析精度を大巾に向上させることh′−で芦、ガラ
スの品質管理等に大きな貢献をするものである。
As described above, according to the invention, in the determination of impurities in glass by CP, after melting the glass, hydrogen fluoride and silicon tetrafluoride are evaporated by heating, and then water or acid aqueous solution is added. By adding h'- to the analysis sample, the accuracy of analysis can be greatly improved, which will greatly contribute to the quality control of reeds and glass.

以  上that's all

Claims (1)

【特許請求の範囲】[Claims] 弗化水素を用いてガラスを溶解し、試料とするガラスの
ICP分析法において、ガラスを溶解した後、弗化水素
および四弗化ケイ素を加熱により蒸発させてから水ある
いは酸水溶液を添加して分析試料とすることを特徴とす
るガラスの分析方法。
In the ICP analysis method of glass as a sample by melting glass using hydrogen fluoride, after melting the glass, hydrogen fluoride and silicon tetrafluoride are evaporated by heating, and then water or an acid aqueous solution is added. A method for analyzing glass, characterized in that it is used as an analysis sample.
JP30248186A 1986-12-18 1986-12-18 Analysis of glass Pending JPS63154945A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30248186A JPS63154945A (en) 1986-12-18 1986-12-18 Analysis of glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30248186A JPS63154945A (en) 1986-12-18 1986-12-18 Analysis of glass

Publications (1)

Publication Number Publication Date
JPS63154945A true JPS63154945A (en) 1988-06-28

Family

ID=17909471

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30248186A Pending JPS63154945A (en) 1986-12-18 1986-12-18 Analysis of glass

Country Status (1)

Country Link
JP (1) JPS63154945A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02259563A (en) * 1989-03-31 1990-10-22 Shin Etsu Handotai Co Ltd Method for determining concentration of metal impurity in cz single crystal silicon
CN101776607A (en) * 2009-12-30 2010-07-14 中国科学院上海硅酸盐研究所 Method for analyzing total arsenic in glass
CN103439313A (en) * 2013-08-16 2013-12-11 成都光明光电股份有限公司 Method for testing content of compound in glass

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02259563A (en) * 1989-03-31 1990-10-22 Shin Etsu Handotai Co Ltd Method for determining concentration of metal impurity in cz single crystal silicon
CN101776607A (en) * 2009-12-30 2010-07-14 中国科学院上海硅酸盐研究所 Method for analyzing total arsenic in glass
CN103439313A (en) * 2013-08-16 2013-12-11 成都光明光电股份有限公司 Method for testing content of compound in glass

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