发明授权
- 专利标题: Method of acid value determination by infrared absorption
- 专利标题(中): 通过红外吸收测定酸值的方法
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申请号: US125151申请日: 1993-09-23
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公开(公告)号: US5420041A公开(公告)日: 1995-05-30
- 发明人: Kazuhiko Matsushita , Hiroshi Yokota , Keiji Fujita , Akihiro Tsukamoto
- 申请人: Kazuhiko Matsushita , Hiroshi Yokota , Keiji Fujita , Akihiro Tsukamoto
- 申请人地址: JPX Okayama
- 专利权人: Kurashiki Boseki Kabushiki Kaisha
- 当前专利权人: Kurashiki Boseki Kabushiki Kaisha
- 当前专利权人地址: JPX Okayama
- 优先权: JPX4-257963 19920928; JPX5-221818 19930907
- 主分类号: G01N21/35
- IPC分类号: G01N21/35 ; G01N21/3577 ; G01N33/28 ; G01N33/03 ; G01N33/26
摘要:
A method of determining acid value with high accuracy, using an infrared spectrometer is provided, in which the absorbance is determined attributable to carboxylic group based on an infrared absorption spectrum at wave numbers around 3300 cm.sup.-1.
公开/授权文献
- US4839795A Interface circuit for single-chip microprocessor 公开/授权日:1989-06-13
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