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1. 发明专利

JPH08304381A ANALYZING METHOD FOR OXYGEN IN ORGANIC SUBSTANCE 失效
公开(公告)号：JPH08304381A
公开(公告)日：1996-11-22
申请号：JP13295995
申请日：1995-05-02
申请人： SHINETSU CHEMICAL CO , HORIBA LTD
发明人： ARAMATA MIKIO , OKAYAMA JUNJI , UCHIHARA HIROSHI , KURITA MICHIKO , OGURA YOSHIKO
IPC分类号： G01N31/00 , G01N1/22 , G01N31/12
摘要： PURPOSE: To analyze oxygen contained in an organic substance with high accuracy and with high speed by energizing a carbon crucible before throwing a sample in so as to bring the crucible in a predetermined high temperature state, and throwing the organic substance sample in the high temperature carbon crucible. CONSTITUTION: Before throwing an organic substance sample in a carbon crucible 2 in an extraction furnace 1, the carbon crucible 2 is energized so as to bring the carbon crucible 2 in a predetermined high temperature state, and the organic substance sample is thrown in the high temperature carbon crucible 2. The organic substance sample is heated by energizing, generated gas is led to a gas analyzer 4 so as to measure the concentration of carbon monoxide, and based on the concentration of the carbon monoxide contained in the organic substance sample so as to analyze oxygen contained in the organic substance sample. By this method, the organic substance sample is thrown in the heated carbon crucible 2 so that vaporization components at a low temperature, a middle temperature, and a high temperature are generated approximately simultaneously. The generated vaporization components are thermally decomposed by the high temperature carbon crucible 2, and is further reduced by high temperature carbon so as to become CO surely. A capture rate is thereby heightened so that the measuring accuracy is improved.

2. 发明专利

JP2000292341A GRAIN SIZE DISTRIBUTION MEASURING DEVICE AND SPECIMEN SUPPLYING DEVICE USED FOR GRAIN SIZE DISTRIBUTION MEASUREMENT 失效
公开(公告)号：JP2000292341A
公开(公告)日：2000-10-20
申请号：JP19550999
申请日：1999-07-09
申请人： HORIBA LTD
发明人： SAKUMA KEIKO , OGURA YOSHIKO
IPC分类号： G01N15/02
摘要： PROBLEM TO BE SOLVED: To accurately measure a specimen comprising powder and grain with large diameters equal to or more than 500 μm. SOLUTION: This measuring device is constituted to supply a flow cell 1 flowing air with a power and grain like specimen S, and to irradiate light L to the flow cell 1 to measure the grain size distribution of the specimen based on the detected output of scattered light and/or transmitted light caused from the specimen S. A sampling member 22 with a prescribed inner diameter is detachably connected to a specimen introduction part 7 of the flow cell 1, and the specimen S is introduced into the flow cell 1 by sucking the specimen S stored in a specimen container 22 from a suction nozzle 26 of the sampling member 22.

3. 发明专利

JPH10260175A ANALYTICAL METHOD FOR CARBON AND/OR SULFUR IN SOLID SAMPLE 失效
公开(公告)号：JPH10260175A
公开(公告)日：1998-09-29
申请号：JP8447697
申请日：1997-03-17
申请人： HORIBA LTD
发明人： OGURA YOSHIKO , OKAYAMA JUNJI , TANAKA SATORU
IPC分类号： G01N31/12 , G01N1/22 , G01N33/20
摘要： PROBLEM TO BE SOLVED: To obtain an analytical method in which a carbon component and a sulfur component can be analyzed with high accuracy by a method wherein an Ni foil or an Al foil is placed on a fine powder sample which is put into a heating container and it is heated and oxidized in a heating furnace while oxygen is being supplied. SOLUTION: A heating container 1 is placed in a resistance heating furnace, an Ni foil 3 is placed on a fine powder sample 2 inside the heating container 1, and tin particles 4 are placed on it. The weight of the fine powder sample 2 composed of, e.g. SiO is set at about 0.05g, the weight of the tin particles 4 is set at about 0.7g, the weight of the Ni foil 3 is set at about 0.1g, and its shape size is set at about 6×55×0.1mm. Oxygen gas flows inside the resistance heating furnace at a considerable speed. The surface of the fine powder sample 2 which is easy to float is pressed by the Ni foil 3, the flow of the oxygen on the surface of the fine powder sample 2 is stabilized, carbon and sulfur are easy to react so as to prevent them from being scattered, and the fine powder sample 2 is burned completely. Thereby, a carbon component and a sulfur component can be measured with high accuracy.

4. 发明专利

JP2001242062A SAMPLING DEVICE FOR GRAIN SIZE DISTRIBUTION MEASUREMENT SAMPLE 失效
公开(公告)号：JP2001242062A
公开(公告)日：2001-09-07
申请号：JP2000051921
申请日：2000-02-28
申请人： HORIBA LTD
发明人： MORITA YOJI , IKEDA MASAHIKO , OGURA YOSHIKO , OISHI MAKOTO , TATEIWA TSUTOMU
IPC分类号： G01N15/02 , G01N1/28
摘要： PROBLEM TO BE SOLVED: To provide a sampling device for a grain size distribution measurement sample capable of sticking a powder sample uniformly dispersedly onto one face of an optical board without performing any fractionation. SOLUTION: In the upper part of a container 1 whose inside can be evacuated, a sample introducing tube 7 having a sample hopper 8 in the upper end, a nozzle 14 in the lower end, and a cock 17 in the middle is inserted airtightly from the container outside into the inside, a diffuser 16 is arranged under the nozzle 14, and the optical board 18 is horizontally arranged below the nozzle 14. While the cock 17 is closed and the container 1 inside and the sample hopper 8 are shut off, a powder sample 6 is thrown into the sample hopper 8 and the container 1 inside is evacuated, and afterward, the cock 17 is opened when the container 1 inside reaches a predetermined vacuum condition. Consequently, the power sample 56 is sucked to the container side and dispersed uniformly on the upper face of the optical board 18 via the nozzle 14.

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