发明名称 |
Method and composition for determination of N-nitrosamines |
摘要 |
N-nitrosamines are reacted with a denitrosating agent to cleave the N-NO bond and yield nitric oxide which may be analyzed to determine both qualitatively and quantitatively, the N-nitrosamine content of a test sample. The denitrosating reagent has the advantage of being useful, even in the presence of substantial amounts of water, and comprises a mixture of glacial acetic acid and a concentrated inorganic acid which is either phosphoric acid or sulfuric acid. The volume ratio of glacial acetic to concentrated acid is within the ratio of from 1:2 to 5:1. This acid component mixture is combined with from about 0.1% to about 5% by weight of soluble inorganic bromide or iodide salt.
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申请公布号 |
US4303419(A) |
申请公布日期 |
1981.12.01 |
申请号 |
US19800166382 |
申请日期 |
1980.07.07 |
申请人 |
UNIVERSITY OF IOWA RESEARCH FOUNDATION |
发明人 |
FRANK, CLYDE W.;NORD, PAUL J.;COX, ROBERT D. |
分类号 |
B01D19/00;G01N31/00;G01N33/02;(IPC1-7):B01D19/00;G01N21/76;G01N35/08;G01N37/00 |
主分类号 |
B01D19/00 |
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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