JPH02242152A - Element analysis - Google Patents
Element analysisInfo
- Publication number
- JPH02242152A JPH02242152A JP6406189A JP6406189A JPH02242152A JP H02242152 A JPH02242152 A JP H02242152A JP 6406189 A JP6406189 A JP 6406189A JP 6406189 A JP6406189 A JP 6406189A JP H02242152 A JPH02242152 A JP H02242152A
- Authority
- JP
- Japan
- Prior art keywords
- sample
- graphite crucible
- crucible
- elemental analysis
- samples
- 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
- 238000004458 analytical method Methods 0.000 title claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 74
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 74
- 239000010439 graphite Substances 0.000 claims abstract description 74
- 238000000921 elemental analysis Methods 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000007872 degassing Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 230000004907 flux Effects 0.000 claims description 12
- 239000007789 gas Substances 0.000 description 10
- 238000004868 gas analysis Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、黒鉛るつぼを用いて試料中の元素を分析する
方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for analyzing elements in a sample using a graphite crucible.
上記黒鉛るつぼを用いて元素分析を行うに際して従来は
、元素分析装置内部の上下の電極間に黒鉛るつぼを挿入
して、当該黒鉛るつぼを前記上下の電極で挟持させると
共に、金属等の試料を試料投入機に供給し、かつ、元素
分析装置をガスシール下に置いた状態で、前記黒鉛るつ
ぼを電気的に加熱して脱ガス処理すると共に、該黒鉛る
つぼに試料を投入して当該試料を熔融し、発生したガス
を基にして前記試料中の元素を分析している。Conventionally, when performing elemental analysis using the graphite crucible, the graphite crucible is inserted between the upper and lower electrodes inside the elemental analyzer, the graphite crucible is held between the upper and lower electrodes, and a sample of metal or the like is placed between the upper and lower electrodes. The graphite crucible is electrically heated to degas the graphite crucible while the elemental analyzer is placed under a gas seal, and the sample is charged into the graphite crucible to melt the sample. Then, the elements in the sample are analyzed based on the gas generated.
そして、上記の元素分析を終えた時点で使用済みの黒鉛
るつぼを取り出し、以後、上記した手段を繰り返すこと
で複数個の試料に対する元素分析を行っている。Then, upon completion of the above elemental analysis, the used graphite crucible is taken out, and thereafter, the above-described procedure is repeated to perform elemental analysis on a plurality of samples.
しかし、元素分析の度に黒鉛るつぼを交換しているので
ランニングコストが高くつく上、黒鉛るつぼの交換と試
料投入機への試料の供給をその都度行うことから、複数
個の試料の元素分析に多大の時間を必要とした。However, running costs are high because the graphite crucible must be replaced every time elemental analysis is performed, and the graphite crucible must be replaced and the sample fed to the sample feeder each time, making it difficult to perform elemental analysis on multiple samples. It required a lot of time.
また、元素分析対象がセラミックス等である場合には、
前記黒鉛るつぼにフラックスが投入されるが、分析に供
したフラックスが未だ機能的に有効である場合があるに
も拘わらず、これを黒鉛るつぼと共に廃棄しており、非
常に無駄であった。In addition, when the subject of elemental analysis is ceramics, etc.,
Flux is put into the graphite crucible, but even though the flux used for analysis may still be functionally effective, it is discarded together with the graphite crucible, which is very wasteful.
本発明は、上記の実情に鑑みて発案されｋものであって
、ランニングコストの低減化と分析時間の短縮化を図る
に至った元素分析方法を提供することを目的としている
。The present invention was devised in view of the above-mentioned circumstances, and an object of the present invention is to provide an elemental analysis method that reduces running costs and shortens analysis time.
上記の目的を達成するに至った第１の発明は、黒鉛るつ
ぼを電気的に加熱して当該黒鉛るつぼに供給された試料
を溶融し、該試料中の元素を分析する方法において、前
記黒鉛るつぼに対する複数個の試料投入機に夫々試料を
供給し、元素分析装置をガスシール下に置いた状態で、
前記黒鉛るつぼを脱ガス処理すると共に、以後、上記の
黒鉛るつぼを繰り返し使用して順次、当該黒鉛るつぼに
試料を投入して元素分析を行うことを特徴としている。A first invention that has achieved the above object is a method of electrically heating a graphite crucible to melt a sample supplied to the graphite crucible, and analyzing elements in the sample. With the elemental analyzer placed under a gas seal,
The method is characterized in that the graphite crucible is subjected to a degassing treatment, and thereafter, the graphite crucible is repeatedly used and samples are successively introduced into the graphite crucible for elemental analysis.
そして、第２の発明は、黒鉛るつぼを電気的に加熱して
当該黒鉛るつぼに供給された試料を溶融し、該試料中の
元素を分析する方法における、前記黒鉛、るつぼに対す
る複数個の試料投入機に夫々試料を供給すると共に、少
なくとも１個のフラックス投入機にフラックスを供給し
、元素分析装置をガスシール下に置いた状態で、前記黒
鉛るつぼを脱ガス処理すると共に、以後、上記の黒鉛る
つぼを操り返し使用して順次、当該黒鉛るつぼに試料を
投入して元素分析を行ない、かつ、所定の試料の元素分
析に際し上記黒鉛るつぼにフラックスを投入することを
特徴としている。A second invention is a method of electrically heating a graphite crucible to melt a sample supplied to the graphite crucible and analyzing elements in the sample, including inputting a plurality of samples to the graphite crucible. At the same time, the graphite crucible is degassed with the elemental analyzer placed under a gas seal, and the graphite crucible is degassed. The method is characterized in that the crucible is used repeatedly and samples are sequentially introduced into the graphite crucible for elemental analysis, and flux is introduced into the graphite crucible during elemental analysis of a predetermined sample.
本第１発明によれば、複数個の試料投入機に対して一度
に試料を供給し、かつ、黒鉛るつぼを繰り返し使用する
ことで、複数個の試料の元素分析を連続的に行うことが
できる。According to the first invention, elemental analysis of a plurality of samples can be performed continuously by supplying samples to a plurality of sample feeders at once and repeatedly using a graphite crucible. .
そして本第２発明によれば、必要に応じてフラックスを
再使用する状態で、上記複数個の試料の元素分析を連続
的に行うことができる。According to the second aspect of the present invention, elemental analysis of the plurality of samples can be performed continuously while the flux is reused as necessary.
先ず、本発明方法を実施する上で必要な元素分析装置の
一例を第１図に基づいて説明する。First, an example of an elemental analyzer necessary for carrying out the method of the present invention will be explained based on FIG.
図において、１はベース２への取付部材で、遊端側に筒
状部材３が設けられている。４は前記取付部材１の遊端
側に垂下連設された上部電極で、前記筒状部材３に連通
ずる試料投入口５と、該試料投入孔５に連通ずる黒鉛る
つぼ収容空間Ｐとが形成され、かつ、前記試料投入口５
の周部下面が電極面６に形成されている。７は前記空間
Ｐに対して出退自在な下部電極で上面が電極面８に形成
されている。９は前記上下の電極４．７の電極面６．８
で挟持された黒鉛るつぼで、前記電極４７に通電される
ことで電気的に加熱される。In the figure, reference numeral 1 denotes an attachment member to a base 2, and a cylindrical member 3 is provided on the free end side. Reference numeral 4 denotes an upper electrode hanging down from the free end side of the mounting member 1, forming a sample inlet 5 communicating with the cylindrical member 3 and a graphite crucible accommodation space P communicating with the sample inlet hole 5. and the sample input port 5
The lower surface of the periphery is formed as the electrode surface 6. Reference numeral 7 denotes a lower electrode that can move in and out of the space P, and its upper surface is formed as an electrode surface 8. 9 is the electrode surface 6.8 of the upper and lower electrodes 4.7
The graphite crucible sandwiched between the electrodes 47 is heated electrically by applying electricity to the electrodes 47.
１０は前記取付部材１の遊端側に設置された第１試料投
入機で、次のように構成されている。Reference numeral 10 denotes a first sample inlet machine installed on the free end side of the mounting member 1, and is configured as follows.
即ち、前記筒状部材３に連通ずる下孔ａと該下孔ａと同
芯状の上孔すおよび試料通過孔Ｃを第１筒体１１に形成
すると共に、該第１筒体１１の内部に第２筒体１２をス
ライド自在に設け、この第２筒体１２の上下部分に、ス
ライドに伴って前記上孔すと試料通過孔Ｃとに各別に連
通ずる互いに同芯状の上下の試料投下孔ｄ、ｅを形成す
ると共に、更に、前記第２筒体１２の内部に、前記上下
の試料投下孔ｄ、ｅを連通状態と閉塞状態とに切り換え
る試料貯留用の第１ホンパー１３を設けて成る。That is, a lower hole a communicating with the cylindrical member 3, an upper hole concentric with the lower hole a, and a sample passage hole C are formed in the first cylindrical body 11, and the inside of the first cylindrical body 11 is A second cylindrical body 12 is slidably provided in the upper and lower parts of the second cylindrical body 12, and upper and lower samples concentric with each other are attached to the upper and lower parts of the second cylindrical body 12, which communicate with the upper hole and the sample passage hole C separately as the second cylinder 12 slides. In addition to forming drop-in holes d and e, a first hopper 13 for storing a sample is further provided inside the second cylindrical body 12 to switch the upper and lower sample drop-in holes d and e between a communicating state and a closed state. It consists of
上記試料貯留用ホッパー１３は、第２筒体１２の内部に
固設した固定部材１３ａと、該固定部材１３ａに対して
当接離間自在な可動部材１３ｂから成り、かつ、当該両
部材１３ａ、１３ｂの相対応する面部の上部には夫々ホ
ッパー面部が形成されており、そして前記第２筒体１２
と可動部材１３ｂには夫々、スライド操作用の第１及び
第２の駆動手段１４．１５が連設されている。The sample storage hopper 13 consists of a fixed member 13a fixed inside the second cylindrical body 12, and a movable member 13b that can freely come into contact with and separate from the fixed member 13a, and both members 13a, 13b A hopper surface portion is formed at the upper part of the corresponding surface portion of the second cylindrical body 12.
First and second driving means 14, 15 for sliding operation are connected to the movable member 13b, respectively.
次に、図中の１６は第２の試料投入機で、前記第１試料
投入機１０の上部に設置され、次のように構成されてい
る。Next, reference numeral 16 in the figure denotes a second sample injector, which is installed above the first sample injector 10 and is configured as follows.
即ち、前記第１筒体１１の上部に第３の筒体１７を設け
ると共に、前記第１筒体１１の上孔すに連通する互いに
同芯状の上下の孔ｆ、ｇと、第１筒体１１の試料通過孔
Ｃに連通する試料供給孔りを、前記第３筒体１７に形成
し、かつ、相対面部の上部にホッパー面部が形成された
一方が固定部材１８ａで他方が可動部材１８ｂである第
２の試料貯留用ホンパー１８を、前記第３の筒体１７に
内蔵すると共に、前記可動部材１８ｂをスライド操作す
るための第３の駆動手段１９を該可動部材１８ｂに連設
し、更に、前記試料供給孔りと上孔「を開閉するための
蓋体２０を設けると共に、当該蓋体２０に黒鉛るつぼ内
部を監視するためのモニター窓２１を設けて成る。That is, the third cylinder 17 is provided on the upper part of the first cylinder 11, and the upper and lower holes f and g are concentric with each other and communicate with the upper hole of the first cylinder 11, and the first cylinder A sample supply hole communicating with the sample passage hole C of the body 11 is formed in the third cylindrical body 17, and a hopper surface portion is formed on the upper part of the opposing surface portion.One side is a fixed member 18a and the other side is a movable member 18b. A second sample storage hopper 18 is built into the third cylindrical body 17, and a third driving means 19 for slidingly operating the movable member 18b is connected to the movable member 18b, Further, a lid 20 for opening and closing the sample supply hole and the upper hole is provided, and a monitor window 21 for monitoring the inside of the graphite crucible is provided in the lid 20.
尚、各種構成部材の当接面部間にはガスシール用のパツ
キンが設けられている６
次に、上記構成の元素分析装置を用いて行われる試料中
の元素分析の一手順について説明する。Note that gas sealing gas seals are provided between the abutting surfaces of the various constituent members.6 Next, a procedure for elemental analysis in a sample performed using the elemental analyzer having the above configuration will be described.
先ず第２図（Ａ）に示すように、前記蓋体２０を開き、
かつ、前記下部電極７の電極面８上に黒鉛るつぼ９を載
置する。First, as shown in FIG. 2(A), open the lid 20,
Further, a graphite crucible 9 is placed on the electrode surface 8 of the lower electrode 7.
次に第２図（Ｂ）に示すように、前記下部電極７を上部
電極４の空間Ｐ内に突入させて、前記黒鉛るつぼ９を当
該下部電極７と前記上部電極４とで挟持させ、前記第１
及び第２の試料投入機１０．１６のホッパー１３．１８
に試料ｎｌ＋ １１２を供給する。Next, as shown in FIG. 2(B), the lower electrode 7 is thrust into the space P of the upper electrode 4, the graphite crucible 9 is sandwiched between the lower electrode 7 and the upper electrode 4, and the 1st
and the hopper 13.18 of the second sample input machine 10.16.
Sample nl+ 112 is supplied to.
次に第２図（Ｃ）に示すように、前記蓋体２０を閉じて
元素分析装置をガスシール下に置くと共に装置内部を不
活性ガスでパージし、かつ、前記上下の電極４．７に電
流を流して黒鉛るつぼ９を電気的に加熱して、該黒鉛る
つぼ９を脱ガス処理すると共に、当該黒鉛るつぼ９のブ
ランク値を測定する。Next, as shown in FIG. 2(C), the lid 20 is closed and the elemental analyzer is placed under a gas seal, the inside of the device is purged with inert gas, and the upper and lower electrodes 4.7 are A current is applied to electrically heat the graphite crucible 9 to degas the graphite crucible 9, and at the same time, a blank value of the graphite crucible 9 is measured.
次いで第２図（Ｄ）に示すように、第１試料投入機１０
の第２筒体１２をスライドさせて、該第２筒体１２の試
料投下孔ｅを第１筒体１１の下孔ａに連通位置させ、か
つ第２図（Ｅ）に示すように、第１ホツパー１３の可動
部材１３ｂを離間移動させて、第１試料ｎ、を黒鉛るつ
ぼ９内に投入する。Next, as shown in FIG. 2(D), the first sample input device 10
Slide the second cylindrical body 12 so that the sample drop-in hole e of the second cylindrical body 12 communicates with the lower hole a of the first cylindrical body 11, and as shown in FIG. 2(E), The movable member 13b of the first hopper 13 is moved away, and the first sample n is charged into the graphite crucible 9.
ここで、前記第１試料ｎ、を黒鉛るつぼ９内で加熱溶融
させて該試料中の元素を融解抽出し、その抽出ガスをキ
ャリアガスで図外のガス分析針に送り込み、第１試料ｎ
１に対する所定のガス分析を行うのである。Here, the first sample n is heated and melted in the graphite crucible 9 to melt and extract the elements in the sample, and the extracted gas is sent to a gas analysis needle (not shown) using a carrier gas.
A predetermined gas analysis is performed on 1.
次に、必要に応じて上記の黒鉛るつぼ９を再度脱ガス処
理した上で、第２図（Ｆ）に示すように、第２試料投入
機１６の可動部材１８ｂを離間移動させて、前記第１試
料ｎ、の分析に使用した黒鉛るつぼ９内に第２試料ｎ２
を投入し、当該第２試料ｎｔを黒鉛るつぼ９内で加熱溶
融させて該試料中の元素を融解抽出し、その抽出ガスを
キャリアガスで図外のガス分析計に送り込み、第２試料
ｎ２に対する所定のガス分析を行うのである。Next, after degassing the graphite crucible 9 again as necessary, the movable member 18b of the second sample input device 16 is moved away from the A second sample n2 is placed in the graphite crucible 9 used for the analysis of one sample n.
The second sample nt is heated and melted in the graphite crucible 9 to melt and extract the elements in the sample, and the extracted gas is sent to a gas analyzer (not shown) using a carrier gas, and the second sample n2 is A predetermined gas analysis is performed.
以上をもって２個の試料に対する１凹の元素分析を終え
るのであり、而して、上記の元素分析をブランク値が判
明している同一の黒鉛るつぼ９を用いて連続的に行える
上に、前記黒鉛るつぼ９を操り返し使用することでラン
ニングコストが低減され、かつ、黒鉛るつぼの交換と試
料投入機への試料の供給が半減されることで、そのため
の作業手間と時間が短縮される。With the above, the elemental analysis of one well for two samples is completed, and the above elemental analysis can be performed continuously using the same graphite crucible 9 whose blank value is known, and the graphite crucible By reusing the crucible 9, the running cost is reduced, and the replacement of the graphite crucible and the supply of the sample to the sample feeder are halved, thereby reducing the labor and time involved.
そして、前記黒鉛るつぼ９が破損するまでの再使用可能
の回数を勘案して、当該黒鉛るつぼ９が破損するまで上
記黒鉛るつぼ９そのものを再使用して元素分析を繰り返
し行うことで、前記ランニングコストの一層の低減と、
黒鉛るつぼ交換等の時間と手間の一層の低減を達成でき
る。Then, taking into consideration the number of times that the graphite crucible 9 can be reused before it is damaged, the running cost is reduced by reusing the graphite crucible 9 itself and repeatedly performing elemental analysis until the graphite crucible 9 is damaged. Further reduction of
It is possible to further reduce the time and effort required to replace graphite crucibles, etc.
尚、分析対象の試料として、鉄やニッケルなど黒鉛るつ
ぼ９に対して浸食するものであれば、当該黒鉛るつぼ９
の耐久性が低下するが、銅や錫やセラミックスなど黒鉛
るつぼ９に浸食しないもの或いは浸食し難いものであれ
ば、上記黒鉛るっぽ９の耐久性は高く、合計で１０分析
程度の再使用に耐える。In addition, if the sample to be analyzed is something that corrodes the graphite crucible 9, such as iron or nickel, the graphite crucible 9
However, if the graphite crucible 9 is made of materials such as copper, tin, or ceramics that do not erode or are difficult to erode, the graphite crucible 9 has high durability and can be reused for about 10 analyzes in total. withstand
ところで、上記の実施例では、元素分析装置に２個の試
料投入機ｔｏ、 ｉｅを装備させているが、３個以上の
試料投入機を装備させることで上記の元素分析をより一
層短時間で行うことができることは言うまでもなく、あ
るいは、複数個の試料投入機と少なくとも１個のフラッ
クス投入機を元素分析装置に装備させることによって、
必要に応じてフラックスを使用する元素分析を行うこと
ができると共に、使用後のフラックスが未だ機能的に有
効である場合には、そのフラックスを再使用して元素分
析をすることができる。By the way, in the above embodiment, the elemental analyzer is equipped with two sample injectors TO and IE, but by equipping it with three or more sample injectors, the above elemental analysis can be performed in a shorter time. It goes without saying that it can be done, or by equipping the elemental analyzer with multiple sample injectors and at least one flux injector,
Elemental analysis using flux can be performed as needed, and if the used flux is still functionally effective, it can be reused for elemental analysis.
尚、試料投入機が１個の場合は２個の試料の元素分析を
行うことはできないが、黒鉛るつぼ９を脱ガス処理して
後に該黒鉛るつぼ９のブランク値を測定し、かつ、当該
黒鉛るつぼ９に試料を投入することで、真の値に極めて
近い元素分析を達成することができる。In addition, when there is only one sample input device, elemental analysis of two samples cannot be performed, but after degassing the graphite crucible 9, the blank value of the graphite crucible 9 is measured, and the graphite crucible 9 is degassed. By charging the sample into the crucible 9, elemental analysis that is extremely close to the true value can be achieved.
以上説明したように本第１発明の元素分析方法は、１回
当たりの元素分析に際し、同一の黒鉛るつぼを繰り返し
使用して複数個の試料に対する元素分析を連続的に行う
点に特徴を有し、而して、元素分析のランニングコスト
の低減はもとより、分析時間の短縮化ならびに分析手間
の簡略化を図ることができ、かつ、同一の黒鉛るつぼを
繰り返し使用することは即ち、使用する黒鉛るつぼのブ
ランク値が一定であるから分析精度の向上も達成できる
。As explained above, the elemental analysis method of the first invention is characterized in that the same graphite crucible is repeatedly used for elemental analysis of multiple samples in a single elemental analysis. Therefore, it is possible to not only reduce the running cost of elemental analysis, but also to shorten the analysis time and simplify the analysis labor, and to use the same graphite crucible repeatedly. Since the blank value of is constant, analysis accuracy can also be improved.
更に、前記黒鉛るつぼが破損するまで該黒鉛るつぼをそ
のまま使用して、上記の元素分析を操り返し行うことも
可能であって、更なるランニングコストの低減と分析時
間の短縮化などを達成できる。Furthermore, it is also possible to use the graphite crucible as it is until it breaks and repeat the above elemental analysis, thereby achieving further reductions in running costs and analysis time.
そして本第２発明の元素分析方法によれば、上記第１発
明による元素分析を、フラックスを用いて行うことがで
きるのであり、かつ、必要に応じて該フラックスを再使
用することもできる。According to the elemental analysis method of the second invention, the elemental analysis according to the first invention can be performed using a flux, and the flux can be reused if necessary.
４、4,
第１図は元素分析装置の概略縦断側面図、第２図（Ａ）
〜（Ｆ）は元素分析の一手順を示す説明図である。
９・・・黒鉛るつぼ、ｔｏ、 １６・・・試料投入機。
第１図Figure 1 is a schematic longitudinal sectional side view of the elemental analyzer, Figure 2 (A)
-(F) are explanatory diagrams showing one procedure of elemental analysis. 9...Graphite crucible, to, 16...Sample input machine. Figure 1
Claims (3)
供給された試料を溶融し、該試料中の元素を分析する方
法であって、前記黒鉛るつぼに対する複数個の試料投入
機に夫々試料を供給し、元素分析装置をガスシール下に
置いた状態で、前記黒鉛るつぼを脱ガス処理すると共に
、以後、上記の黒鉛るつぼを繰り返し使用して順次、当
該黒鉛るつぼに試料を投入して元素分析を行うことを特
徴とする元素分析方法。(1) A method of electrically heating a graphite crucible to melt a sample supplied to the graphite crucible and analyzing the elements in the sample, in which each sample is placed in a plurality of sample feeders for the graphite crucible. With the elemental analyzer placed under a gas seal, the graphite crucible is degassed, and thereafter, the graphite crucible is used repeatedly and samples are sequentially introduced into the graphite crucible to analyze the elements. An elemental analysis method characterized by performing analysis.
供給された試料を溶融し、該試料中の元素を分析する方
法であって、前記黒鉛るつぼに対する複数個の試料投入
機に夫々試料を供給すると共に、少なくとも１個のフラ
ックス投入機にフラックスを供給し、元素分析装置をガ
スシール下に置いた状態で、前記黒鉛るつぼを脱ガス処
理すると共に、以後、上記の黒鉛るつぼを繰り返し使用
して順次、当該黒鉛るつぼに試料を投入して元素分析を
行ない、かつ、所定の試料の元素分析に際し上記黒鉛る
つぼにフラックスを投入することを特徴とする元素分析
方法。(2) A method of electrically heating a graphite crucible to melt a sample supplied to the graphite crucible and analyzing the elements in the sample, in which each sample is placed in a plurality of sample feeders for the graphite crucible. At the same time, supplying flux to at least one flux injector, degassing the graphite crucible with the elemental analyzer placed under a gas seal, and repeatedly using the graphite crucible from now on. A method for elemental analysis, characterized in that samples are sequentially introduced into the graphite crucible and subjected to elemental analysis, and a flux is introduced into the graphite crucible during the elemental analysis of a predetermined sample.
以後の試料の投入に先立って、当該黒鉛るつぼを再度脱
ガス処理することを特徴とする請求項（１）又は（２）
に記載された元素分析方法。(3) Claim (1) or (2), wherein the graphite crucible is degassed again before the second and subsequent samples are introduced into the degassed graphite crucible.
Elemental analysis method described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1064061A JPH0740027B2 (en) | 1989-03-16 | 1989-03-16 | Elemental analysis method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1064061A JPH0740027B2 (en) | 1989-03-16 | 1989-03-16 | Elemental analysis method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02242152A true JPH02242152A (en) | 1990-09-26 |
| JPH0740027B2 JPH0740027B2 (en) | 1995-05-01 |
Family
ID=13247199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1064061A Expired - Lifetime JPH0740027B2 (en) | 1989-03-16 | 1989-03-16 | Elemental analysis method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0740027B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1203919A1 (en) * | 2000-11-03 | 2002-05-08 | Leco Corporation | Sample introduction assembly |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025115509A1 (en) * | 2023-11-30 | 2025-06-05 | 株式会社堀場製作所 | Sample carrier and sample analysis system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS608749A (en) * | 1983-06-28 | 1985-01-17 | Horiba Ltd | Quantitative analysis of sample such as metal using graphite crucible |
| JPS61194359A (en) * | 1985-02-23 | 1986-08-28 | Horiba Ltd | Method for analysis of element in specimen by using crucible |
-
1989
- 1989-03-16 JP JP1064061A patent/JPH0740027B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS608749A (en) * | 1983-06-28 | 1985-01-17 | Horiba Ltd | Quantitative analysis of sample such as metal using graphite crucible |
| JPS61194359A (en) * | 1985-02-23 | 1986-08-28 | Horiba Ltd | Method for analysis of element in specimen by using crucible |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1203919A1 (en) * | 2000-11-03 | 2002-05-08 | Leco Corporation | Sample introduction assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0740027B2 (en) | 1995-05-01 |
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