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公开(公告)号：US4303419A
公开(公告)日：1981-12-01
申请号：US166382
申请日：1980-07-07
申请人： Clyde W. Frank , Paul J. Nord , Robert D. Cox
发明人： Clyde W. Frank , Paul J. Nord , Robert D. Cox
CPC分类号： G01N31/00 , B01D19/0005 , G01N33/02 , Y10S261/19
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.
摘要翻译： N-亚硝胺与脱硝剂反应以切割N-NO键并产生一氧化氮，其可被分析以确定测定样品的N-亚硝胺含量的定性和定量。 脱氮试剂的优点是即使在大量水存在下也是有用的，并且包括冰醋酸和磷酸或硫酸的浓缩无机酸的混合物。 冰醋酸与浓缩酸的体积比在1:2至5:1之间。 该酸组分混合物与约0.1％至约5％重量的可溶性无机溴化物或碘化物盐组合。
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公开(公告)号：US4336158A
公开(公告)日：1982-06-22
申请号：US166381
申请日：1980-07-07
申请人： Clyde W. Frank , Paul J. Nord , Robert D. Cox
发明人： Clyde W. Frank , Paul J. Nord , Robert D. Cox
CPC分类号： G01N31/00 , G01N33/02 , Y10T436/170769
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.
摘要翻译： N-亚硝胺与脱硝剂反应以切割N-NO键并产生一氧化氮，其可被分析以确定测定样品的N-亚硝胺含量的定性和定量。 脱氮试剂的优点是即使在大量水存在下也是有用的，并且包括冰醋酸和磷酸或硫酸的浓缩无机酸的混合物。 冰醋酸与浓缩酸的体积比在1:2至5:1之间。 该酸组分混合物与约0.1％至约5％重量的可溶性无机溴化物或碘化物盐组合。
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公开(公告)号：US4256462A
公开(公告)日：1981-03-17
申请号：US108236
申请日：1979-12-28
申请人： Clyde W. Frank , Paul J. Nord , Robert D. Cox
发明人： Clyde W. Frank , Paul J. Nord , Robert D. Cox
CPC分类号： G01N33/02 , G01N31/00 , Y10T436/170769 , Y10T436/173845
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.
摘要翻译： N-亚硝胺与脱硝剂反应以切割N-NO键并产生一氧化氮，其可被分析以确定测定样品的N-亚硝胺含量的定性和定量。 脱氮试剂的优点是即使在大量水存在下也是有用的，并且包括冰醋酸和磷酸或硫酸的浓缩无机酸的混合物。 冰醋酸与浓缩酸的体积比在1:2至5:1之间。 该酸组分混合物与约0.1％至约5％重量的可溶性无机溴化物或碘化物盐组合。
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