JPH10111246A - Nozzle for flame photometric detector and its manufacture - Google Patents
Nozzle for flame photometric detector and its manufactureInfo
- Publication number
- JPH10111246A JPH10111246A JP26693296A JP26693296A JPH10111246A JP H10111246 A JPH10111246 A JP H10111246A JP 26693296 A JP26693296 A JP 26693296A JP 26693296 A JP26693296 A JP 26693296A JP H10111246 A JPH10111246 A JP H10111246A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- hole
- flow path
- diameter
- holes
- 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
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、ガスクロマトグ
ラフの検出器として使用される炎光光度検出器用ノズル
及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flame photometric detector nozzle used as a gas chromatograph detector and a method of manufacturing the same.
【０００２】[0002]
【従来の技術】ガスクロマトグラフ用の検出器として使
用される炎光光度検出器（Flame-Pho-tometic Detecto
r, 以下ＦＰＤ検出器とする）のノズル部では水素炎を
形成するため試料ガス流路以外に燃焼ガス（水素や空
気）の流路が必要である。ＦＰＤ検出器は、装置の構成
上ノズル部が長くなることが多く、従って燃焼ガスの流
路も長くなることが多い。しかし、燃焼ガスの流路はド
リル加工する際にノズル部に必要な流路の長さが長くな
ると小径の孔をあけることができなくなり、均一な水素
炎を得るために燃焼ガスを多数の小径の孔から流すこと
が困難である。2. Description of the Related Art Flame-Pho-tometic Detector used as a detector for gas chromatography
r, an FPD detector) requires a flow path for combustion gas (hydrogen or air) in addition to the sample gas flow path to form a hydrogen flame. The FPD detector often has a long nozzle portion due to the configuration of the device, and thus often has a long flow path for the combustion gas. However, when the length of the flow path required for the nozzle part becomes long when drilling, it is not possible to drill small-diameter holes. It is difficult to flow through the holes.
【０００３】図６（Ａ）は従来の炎光光度検出器用ノズ
ルの縦断面図であり、図６（Ｂ）は図６（Ａ）のＡ−Ａ
矢視図である。即ち、従来のノズル部では燃焼ガス用の
ガス流路を形成する際には、ノズル本体１０の中心部に
試料ガス用の流路１０ａを形成し、該流路１０ａの周囲
に燃焼ガス用の流路１０ｂ、１０ｃを複数個設けてあ
る。そして該燃焼ガス用の流路１０ｂ、１０ｃは軸方向
に対して直角方向から設けた複数個の燃焼ガス流路１０
ｄ、１０ｅ、１０ｆに連通させていた。このようなガス
流路１０ｄ等を設けるためノズル本体１０の表面には平
坦部１０ｇ、１０ｈ、１０ｉを設け、ここよりドリルで
燃焼ガス流路１０ｄ、１０ｅ、１０ｆ等を穿設してい
た。FIG. 6A is a longitudinal sectional view of a conventional nozzle for a flame photometric detector, and FIG. 6B is a sectional view taken along line AA of FIG.
It is an arrow view. That is, when forming a gas flow path for combustion gas in the conventional nozzle section, a flow path 10a for sample gas is formed in the center of the nozzle body 10, and a flow path for combustion gas is formed around the flow path 10a. A plurality of flow paths 10b and 10c are provided. The combustion gas passages 10b and 10c are provided with a plurality of combustion gas passages 10 provided at right angles to the axial direction.
d, 10e, and 10f. In order to provide such a gas flow path 10d and the like, flat portions 10g, 10h and 10i are provided on the surface of the nozzle body 10, and the combustion gas flow paths 10d, 10e and 10f are drilled from here.
【０００４】[0004]
【発明が解決しようとする課題】ＦＰＤ検出器において
は、水素炎を形成させるときの水素と空気の比率は最適
な値が分析目的化合物によって異なっている。そのため
燃焼ガス流路の出口の径が大きいと、特に流量が少ない
ときに線速度が遅くなり安定した水素炎を形成させにく
くなる。また、均一な水素炎を得るために流路を多数に
振り分けることも困難となる。更に、上記するように燃
焼ガス流路の加工が複雑となり、孔あけ加工の後、図６
（Ｂ）にも示すように、塞ぎ溶接をしなければならな
い。また、ノズル部の長さＬが長くなると、通常の孔あ
け加工では小さな径の孔の穿設は困難となり、したがっ
て試料ガス流路１０ａの周囲に複数の孔１０ｂ、１０ｃ
を加工することも困難となる。In the FPD detector, the optimum value of the ratio of hydrogen to air when forming a hydrogen flame differs depending on the compound to be analyzed. Therefore, if the diameter of the outlet of the combustion gas flow path is large, especially when the flow rate is small, the linear velocity becomes slow and it is difficult to form a stable hydrogen flame. In addition, it is difficult to distribute a large number of flow paths in order to obtain a uniform hydrogen flame. Further, as described above, the processing of the combustion gas flow path becomes complicated, and after drilling, the processing shown in FIG.
As shown in (B), block welding must be performed. Further, when the length L of the nozzle portion is long, it becomes difficult to form a hole having a small diameter by ordinary drilling, and therefore, a plurality of holes 10b, 10c around the sample gas flow path 10a.
Is also difficult to process.
【０００５】この発明は上記する課題に着目してなされ
たものであり、ノズル本体が長くなっても、該ノズル本
体の種々のディメンション等に影響されることなく、よ
り理想的な炎光光度検出器用ノズル及びその製造方法を
提供することを目的としている。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problem. Even when the length of the nozzle body becomes longer, the ideal flame luminous intensity detection is performed without being affected by various dimensions of the nozzle body. It is an object of the present invention to provide a dexterous nozzle and a method for manufacturing the same.
【０００６】[0006]
【課題を解決するための手段】即ち、この発明は上記す
る課題を解決するために、炎光光度検出器用ノズルが、
有底筒体の該底部に所定の径の円周上に半円状の孔を複
数個設けた穴を形成したノズル先端部と、本体から端部
に設けた筒部にかけて内部に試料ガス用の流路を形成す
るとともに該筒部の基端部周囲に燃焼ガスの流路となる
凹部を形成したノズル本体と、より成り、前記ノズル本
体の筒部を前記ノズル先端部の穴に圧入したことを特徴
とする。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a flame photometric detector nozzle,
A nozzle tip having a plurality of semicircular holes formed on the circumference of a predetermined diameter at the bottom of the bottomed cylindrical body, and a sample gas inside from the body to the cylindrical portion provided at the end. And a nozzle body formed with a recess serving as a flow path for combustion gas around the base end of the cylindrical portion, and the cylindrical portion of the nozzle body was press-fitted into a hole at the nozzle tip. It is characterized by the following.
【０００７】或いは、炎光光度検出器用ノズルの製造方
法が、有底筒体の該底部に所定の径の円周上に複数個の
孔を穿設するとともに該所定の径の円と同等若しくは近
似する径の穴を穿設したノズル先端部の該穴に、本体か
ら端部に設けた筒部にかけて内部に試料ガス用の流路を
形成するとともに該筒部の基端部周囲に燃焼ガスの流路
となる凹部を形成したノズル本体の該筒部を圧入するこ
とを特徴とする。Alternatively, a method of manufacturing a nozzle for a flame photometric detector includes the steps of forming a plurality of holes on a circumference of a predetermined diameter at the bottom of a bottomed cylindrical body, and forming a hole having a diameter equal to or equal to the circle having a predetermined diameter. A flow path for the sample gas is formed in the hole at the tip of the nozzle having a hole having an approximate diameter from the main body to the cylinder provided at the end, and the combustion gas is formed around the base end of the cylinder. The cylindrical portion of the nozzle body having the concave portion serving as the flow path is press-fitted.
【０００８】[0008]
【発明の実施の形態】以下、この発明の具体的実施の形
態について図面を参照しながら説明する。図１（Ａ）は
この発明の炎光光度検出器用ノズルの製造方法によって
製造された炎光光度検出器用ノズルの縦断面図であり、
図１（Ｂ）は図１（Ａ）のＰ矢視正面図である。この炎
光光度検出器用ノズルは、ノズル本体１にノズル先端部
２を圧入して製作される。該ノズル本体１の中央部内部
にはガスクロマトグラフ等の分析装置のカラムで分離さ
れた試料ガスのための流路１ａが形成されているが、中
央部にはこの流路１ａを備えた長い筒部１ｂが形成され
ている。そして後述する方法によって製作された前記ノ
ズル先端部２の穴２ｃに該筒部１ｂを圧入する。該ノズ
ル先端部２の端部はノズル本体１に設けた溶接用筒部１
ｃに溶接して固着される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. FIG. 1A is a vertical sectional view of a flame photometric detector nozzle manufactured by the method for manufacturing a flame photometric detector nozzle according to the present invention;
FIG. 1B is a front view of FIG. The nozzle for flame light intensity detector is manufactured by press-fitting a nozzle tip 2 into a nozzle body 1. A flow path 1a for a sample gas separated by a column of an analyzer such as a gas chromatograph is formed in the center of the nozzle body 1, and a long cylinder having the flow path 1a is formed in the center. A portion 1b is formed. Then, the cylindrical portion 1b is press-fitted into a hole 2c of the nozzle tip 2 manufactured by a method described later. The end of the nozzle tip 2 is a welding cylinder 1 provided on the nozzle body 1.
c is fixed by welding.
【０００９】図２（Ａ）は前記ノズル先端部２の縦断面
図であり、図２（Ｂ）は図２（Ａ）のＱ矢視正面図であ
る。このノズル先端部２は、有底の筒体２ａに所定の穴
あけ加工することにより製作される。即ち、筒体２ａの
一端に設けた底部２ｂに所定の穴２ｃが形成してある
が、該穴２ｃは大きな径の穴２ｃ2 の周上に４個の小さ
な半円状の孔２ｃ1 を設けることによって形成される。
なお、ノズル先端部２の端部には後述するようにノズル
本体１に設けた溶接用筒部１ｃに嵌め込むための段部２
ｄが形成してある。FIG. 2A is a longitudinal sectional view of the nozzle tip 2, and FIG. 2B is a front view of FIG. The nozzle tip 2 is manufactured by drilling a predetermined hole in a bottomed cylindrical body 2a. That is, a predetermined hole 2c in the bottom portion 2b provided at one end of the cylindrical body 2a is is formed, the hole 2c is a small semicircular hole 2c 1 of 4 on the circumference of the hole 2c 2 of larger diameter It is formed by providing.
The end of the nozzle tip 2 has a step 2 for fitting into a welding cylinder 1c provided on the nozzle body 1 as described later.
d is formed.
【００１０】前記ノズル先端部２の底部２ｂの穴２ｃ
は、つぎのような方法により形成される。図３（Ａ）に
示すように、ノズル先端部２の筒体２ａの底部２ｂに一
定の径を有する円２ｅを描く。該円２ｅの上にはできる
だけ周方向等間隔に小さな径の孔２ｃ1 を４個穿設す
る。次に、図３（Ｂ）に示すように、径の大きな円つま
り前記円２ｅと同じ径を有するドリルや旋盤等で穴２ｃ
2 を穿設する。この穴２ｃ2は後述するようにノズル本
体１の筒部１ｂと圧入公差（即ち、筒部の径より少し小
さな径）となるように精度よく穿設する。こうしてノズ
ル先端部２の底部２ｂに半円状の孔２ｃ1 を有する穴２
ｃが形成される。The hole 2c in the bottom 2b of the nozzle tip 2
Is formed by the following method. As shown in FIG. 3A, a circle 2e having a constant diameter is drawn on the bottom 2b of the cylinder 2a at the nozzle tip 2. Is possible bored four holes 2c 1 of smaller diameter in the circumferential direction at equal intervals on the circle 2e. Next, as shown in FIG. 3 (B), a hole 2c is formed with a circle having a large diameter, that is, a drill or a lathe having the same diameter as the circle 2e.
Drill 2 The hole 2c 2 is press-fit tolerance between the cylindrical portion 1b of the nozzle body 1 as described later (i.e., slightly smaller diameter than the diameter of the cylindrical portion) accurately bored so that. Thus holes 2 having a semicircular hole 2c 1 in the bottom portion 2b of the nozzle tip 2
c is formed.
【００１１】前記筒体２ａの底部２ｂに形成する穴２ｃ
の小さな半円状の孔２ｃ1 は前記加工工程によれば、即
ち、底部２ｂに円２ｅを描き該円２ｅの上に必要な数の
小さな径の孔２ｃ1 を多数穿設する加工工程によれば、
必要な径の小孔を必要な数だけ確実に且つ精密に加工し
て設けることができる。また、前記穴２ｃ2 の周上に残
す半円状の孔２ｃ1 の円弧部分の大きさはドリルの径を
円２ｅと同一の径とするか、これより大きくするか或い
は小さくするかによって任意に選択することが可能であ
る。A hole 2c formed in the bottom 2b of the cylindrical body 2a
The small semicircular hole 2c 1 is formed by the above-mentioned processing step, that is, in the processing step of drawing a circle 2e on the bottom 2b and forming a large number of small holes 2c 1 of a required number on the circle 2e. According to
The required number of small holes of a required diameter can be provided reliably and precisely processed and provided. Also, any depending the size of the arc portion of the semicircular hole 2c 1 left on the periphery of the hole 2c 2 are either the diameter of the drill and the circle 2e same diameter as to whether or smaller to larger than this Can be selected.
【００１２】図４（Ａ）はノズル本体１の縦断面図であ
り、図４（Ｂ）はＲ矢視正面図である。このノズル本体
１には本体１’の端部に必要な長さの筒部１ｂを形成
し、中央部に試料ガス用の流路１ａが設けてある。この
筒部１ｂの基端部周囲には燃焼ガス（水素、空気）の通
路となる凹部１ｄが形成されるとともに側面に燃焼ガス
ホ−スのプラグ装着用の穴１ｅが設けてある。また、前
記凹部１ｄの周囲には少し外側に突出させて溶接用円筒
部１ｃが形成される。該溶接用円筒部１ｃの内周面１ｆ
には前記ノズル先端部２の端部に設けた段部２ｄが嵌合
される。そして図１（Ａ）に示すように該円筒部１ｃと
ノズル先端部２の外周端は燃焼ガスが漏れないよう溶接
される。なお、上記したように、筒部１ｂの外径Ｄは前
記ノズル先端部２の穴２ｃと圧入公差となるように加工
する。FIG. 4A is a longitudinal sectional view of the nozzle body 1, and FIG. The nozzle main body 1 has a cylindrical portion 1b having a required length at an end of the main body 1 ', and a flow path 1a for a sample gas is provided at a central portion. A recess 1d serving as a passage for combustion gas (hydrogen, air) is formed around the base end of the cylindrical portion 1b, and a hole 1e for mounting a plug of a combustion gas hose is provided on a side surface. A cylindrical portion 1c for welding is formed around the concave portion 1d so as to project slightly outward. Inner peripheral surface 1f of the welding cylindrical portion 1c
Is fitted with a step 2d provided at the end of the nozzle tip 2. Then, as shown in FIG. 1A, the outer peripheral end of the cylindrical portion 1c and the nozzle tip 2 are welded so that the combustion gas does not leak. As described above, the outer diameter D of the cylindrical portion 1b is processed so as to have a press fitting tolerance with respect to the hole 2c of the nozzle tip 2.
【００１３】図５は前記ノズル本体１とノズル先端部２
の縦断面図であってこれらを圧入する様子を示す図であ
る。ノズル本体１には、上記するように中央部に本体
１’から筒部１ｂにかけて内部に試料ガス用の流路１ａ
が形成され、また、筒部１ｂの基端部周囲には燃焼ガス
の流路となる凹部１ｄと、該凹部１ｄの外側周囲に短い
円筒部１ｃが形成されている。一方、前記ノズル先端部
２の筒体２ａの底部２ｂに穿設した穴２ｃは、穴２ｃ2
の周上に半円状の孔２ｃ1 を複数個（４個）設けた形と
なっている。そしてノズル先端部２の穴２ｃにノズル本
体１の筒部１ｂを圧入する。このときノズル本体１の溶
接用円筒部１ｃの内周面１ｆにはノズル先端部２の端部
に設けた段部２ｄが嵌まる。こうして図１（Ａ）に示す
ように、該円筒部１ｃとノズル先端部２の端部とを溶接
する。FIG. 5 shows the nozzle body 1 and the nozzle tip 2
FIG. 4 is a longitudinal sectional view showing a state in which they are press-fitted. As described above, the nozzle main body 1 has a flow path 1a for the sample gas in the center from the main body 1 'to the cylindrical part 1b.
Are formed around the base end of the cylindrical portion 1b, and a concave portion 1d serving as a flow path of the combustion gas and a short cylindrical portion 1c are formed around the outer side of the concave portion 1d. On the other hand, the hole 2c formed in the bottom 2b of the cylindrical body 2a of the nozzle tip 2 is a hole 2c 2
It has a semicircular hole 2c 1 on the circumference of the plurality of (four) in the form provided. Then, the cylinder 1b of the nozzle body 1 is press-fitted into the hole 2c of the nozzle tip 2. At this time, a step 2d provided at the end of the nozzle tip 2 is fitted to the inner peripheral surface 1f of the welding cylindrical portion 1c of the nozzle body 1. Thus, as shown in FIG. 1A, the cylindrical portion 1c and the end of the nozzle tip 2 are welded.
【００１４】上記するように、ノズル本体１とノズル先
端部２とを圧入すると、図１（Ｂ）に示すように、ノズ
ル本体１の筒部１ｂの周囲に４個の小さな半円状の孔２
ｃ1，２ｃ1 ，・・が形成される。そして、本体１ａに
設けた凹部１ｄと筒体２ａの内部空間３は燃焼ガス用の
流路となる。前記孔２ｃ1 ，・・は燃焼ガスの吹出口と
なるが、これらの孔は一定の径の円周まわりに正確に設
けることができる。また、実施例ではこれらの半円状の
孔２ｃ1 ，・・の数は４個の場合で説明したが、勿論こ
れらの孔２ｃ1 の個数は増減することも可能である。As described above, when the nozzle body 1 and the nozzle tip 2 are press-fitted, four small semicircular holes are formed around the cylindrical portion 1b of the nozzle body 1 as shown in FIG. 2
c 1 , 2c 1 ,... are formed. The recess 1d provided in the main body 1a and the internal space 3 of the cylindrical body 2a serve as a flow path for combustion gas. The holes 2c 1 ,... Serve as outlets for the combustion gas, and these holes can be accurately provided around a circumference having a constant diameter. In the embodiment, the number of these semicircular holes 2c 1 ,... Has been described as four, but the number of these holes 2c 1 can of course be increased or decreased.
【００１５】[0015]
【発明の効果】以上詳述したように、この発明によれ
ば、燃焼ガス用の小孔を正確にしかも径の大きさも任意
に形成した炎光光度検出器用ノズルを提供することがで
きる。そしてこの製造方法によって製造された炎光光度
検出器用ノズルはノズル本体が長くなっても、該ノズル
本体の種々のディメンション等に影響されることなく、
より理想的な炎光光度検出器用ノズルとすることができ
る。更に、この製造方法は比較的簡単であり製造コスト
も従来のものより低減することができる。As described above in detail, according to the present invention, it is possible to provide a nozzle for a flame photometric detector in which small holes for combustion gas are formed accurately and arbitrarily in diameter. And even if the nozzle main body becomes long, the nozzle for the flame photometric detector manufactured by this manufacturing method is not affected by various dimensions and the like of the nozzle main body,
A more ideal flame light intensity detector nozzle can be obtained. Furthermore, the manufacturing method is relatively simple and the manufacturing cost can be reduced as compared with the conventional one.
【図１】図１（Ａ）はこの発明の炎光光度検出器用ノズ
ルの製造方法によって製造された炎光光度検出器用ノズ
ルの縦断面図であり、図１（Ｂ）は図１（Ａ）のＰ矢視
正面図である。FIG. 1A is a longitudinal sectional view of a flame photometric detector nozzle manufactured by the method for manufacturing a flame photometric detector nozzle according to the present invention, and FIG. 1B is a longitudinal sectional view of FIG. FIG.
【図２】図２（Ａ）は前記ノズル先端部の縦断面図であ
り、図２（Ｂ）は図２（Ａ）のＱ矢視正面図である。FIG. 2A is a vertical cross-sectional view of the tip of the nozzle, and FIG. 2B is a front view as viewed in the direction of arrow Q in FIG. 2A.
【図３】この発明の炎光光度検出器用ノズルを構成する
ノズル先端部の穴あけ加工方法を示すものであって、図
３（Ａ）は一定の径の円周上に小孔を穿設する状態を示
し、図３（Ｂ）は小孔を穿設した後一定の円と同一の径
の穴を穿設する状態を示す図である。FIG. 3 shows a method for boring a nozzle tip constituting a nozzle for a flame photometric detector according to the present invention. FIG. 3 (A) shows a method of forming a small hole on a circumference having a constant diameter. FIG. 3B is a view showing a state in which a small hole is formed and then a hole having the same diameter as a certain circle is formed.
【図４】図４（Ａ）はノズル本体の縦断面図であり、図
４（Ｂ）は図４（Ａ）のＲ矢視正面図である。4A is a longitudinal sectional view of a nozzle main body, and FIG. 4B is a front view of FIG.
【図５】この発明の炎光光度検出器用ノズルを構成する
ノズル本体とノズル先端部の縦断面図であって、これら
を圧入する様子を示す図である。FIG. 5 is a longitudinal sectional view of a nozzle main body and a nozzle tip portion constituting a nozzle for a flame photometric detector according to the present invention, showing a state in which they are press-fitted.
【図６】図６（Ａ）は従来の炎光光度検出器用ノズルの
縦断面図であり、図６（Ｂ）は図６（Ａ）のＡ−Ａ矢視
図である。6 (A) is a longitudinal sectional view of a conventional nozzle for a flame photometric detector, and FIG. 6 (B) is a view taken along the line AA of FIG. 6 (A).
１ ノズル本体 １’ 本体 １ａ 試料ガス用流路 １ｂ 筒部 １ｃ 溶接用円筒部 １ｄ 凹部 ２ ノズル先端部 ２ａ 筒体 ２ｂ 底部 ２ｃ ノズル先端部の穴 ２ｃ1 半円状（となる）孔 ２ｃ2 大きな径の穴 ２ｄ 段部DESCRIPTION OF SYMBOLS 1 Nozzle main body 1 'Main body 1a Sample gas flow path 1b Cylindrical part 1c Welding cylindrical part 1d Concave part 2 Nozzle tip part 2a Cylindrical body 2b Bottom part 2c Nozzle tip part hole 2c 1 Semicircular hole 2c 2 Large Diameter hole 2d step
Claims (2)
半円状の孔を複数個設けた穴を形成したノズル先端部
と、本体から端部に設けた筒部にかけて内部に試料ガス
用の流路を形成するとともに該筒部の基端部周囲に燃焼
ガスの流路となる凹部を形成したノズル本体と、より成
り、前記ノズル本体の筒部を前記ノズル先端部の穴に圧
入したことを特徴とする炎光光度検出器用ノズル。1. A method according to claim 1, wherein the bottom of the bottomed cylindrical body has a nozzle having a plurality of semicircular holes formed on a circumference of a predetermined diameter and a cylindrical portion provided at an end of the nozzle. A nozzle body that forms a flow path for the sample gas therein and has a concave portion that becomes a flow path for combustion gas around the base end of the cylindrical part. A nozzle for a flame photometric detector, wherein the nozzle is press-fitted into a hole.
複数個の孔を穿設するとともに該所定の径の円と同等若
しくは近似する径の穴を穿設したノズル先端部の該穴
に、本体から端部に設けた筒部にかけて内部に試料ガス
用の流路を形成するとともに該筒部の基端部周囲に燃焼
ガスの流路となる凹部を形成したノズル本体の該筒部を
圧入することを特徴とする炎光光度検出器用ノズルの製
造方法。2. A nozzle tip in which a plurality of holes are formed on a circumference of a predetermined diameter at the bottom of the bottomed cylindrical body, and holes having a diameter equal to or close to a circle of the predetermined diameter are formed. A nozzle body in which a flow path for a sample gas is formed in the hole of the portion from the main body to a cylindrical portion provided at the end, and a concave portion serving as a flow path of combustion gas is formed around a base end of the cylindrical portion. And press-fitting said cylindrical portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26693296A JP3622368B2 (en) | 1996-10-08 | 1996-10-08 | Nozzle for flame photometric detector and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26693296A JP3622368B2 (en) | 1996-10-08 | 1996-10-08 | Nozzle for flame photometric detector and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10111246A true JPH10111246A (en) | 1998-04-28 |
| JP3622368B2 JP3622368B2 (en) | 2005-02-23 |
Family
ID=17437694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26693296A Expired - Fee Related JP3622368B2 (en) | 1996-10-08 | 1996-10-08 | Nozzle for flame photometric detector and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3622368B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749299A (en) * | 2013-12-25 | 2015-07-01 | 中国科学院大连化学物理研究所 | Large-volume flow-through cell for liquid chromatography fluorescence detector |
| US20150285770A1 (en) * | 2010-02-26 | 2015-10-08 | Rosario Mannino | Jet assembly for use in detectors and other devices |
| US20220276208A1 (en) * | 2019-01-14 | 2022-09-01 | Agilent Technologies, Inc. | Versatile tube-free jet for gas chromatography detector |
-
1996
- 1996-10-08 JP JP26693296A patent/JP3622368B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150285770A1 (en) * | 2010-02-26 | 2015-10-08 | Rosario Mannino | Jet assembly for use in detectors and other devices |
| CN104749299A (en) * | 2013-12-25 | 2015-07-01 | 中国科学院大连化学物理研究所 | Large-volume flow-through cell for liquid chromatography fluorescence detector |
| US20220276208A1 (en) * | 2019-01-14 | 2022-09-01 | Agilent Technologies, Inc. | Versatile tube-free jet for gas chromatography detector |
| US12117424B2 (en) | 2019-01-14 | 2024-10-15 | Agilent Technologies, Inc. | Versatile tube-free jet for gas chromatography detector having a conical inlet skirt |
| US12130266B2 (en) * | 2019-01-14 | 2024-10-29 | Agilent Technologies, Inc | Versatile tube-free jet for gas chromatography detector having a conical inlet skirt |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3622368B2 (en) | 2005-02-23 |
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