发明名称 |
METHOD OF SEPARATELY DETERMINING 2-BROMOBENZOIC AND 2-BROMO-6-HYDROXYBENZOIC (5- BROMOSALYCILIC) ACIDS IN WATER |
摘要 |
FIELD: analytical methods. SUBSTANCE: title acids are determined in purified waste waters from pharmaceutical enterprises with preliminary liquid extraction and concentration of acids. Extraction is performed with ethyl acetate used in amounts from 5 to 100 cu.cm per 100 cu.cm of aqueous solution of acids. Extract is analyzed with the aid of potentiometric titration using dimethylsulfoxide as differentiating solvent at volume ratio to extract 1: 2.5. EFFECT: increased accuracy of potentiometric titration. 1 tbl, 8 ex |
申请公布号 |
RU2205176(C1) |
申请公布日期 |
2003.05.27 |
申请号 |
RU20020102330 |
申请日期 |
2002.01.25 |
申请人 |
GOSUDARSTVENNOE OBRAZOVATEL'NOE UCHREZHDENIE VORONEZHSKAJA GOSUDARSTVENNAJA TEKHNOLOGICHESKAJA AKADE |
发明人 |
KORENMAN JA.I.;NIFTALIEV SABUKHI ILICH OGLY;KONSTANTINOVA N.A. |
分类号 |
C07C51/573;C07C53/46;G01N27/48;G01N31/16 |
主分类号 |
C07C51/573 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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