发明名称 |
VERFAHREN UND REAGENS ZUR BESTIMMUNG VON ASCORBINSAEURE |
摘要 |
Ascorbic acid or dehydroascorbic acid is determined by reaction with a tetrazolium salt selected from 3-(4,5-dimethyl-thiazolyl-2)-2,5-diphenyl-tetrazolium bromide, nitrotetrazolium blue, tetrazolium blue chloride and distyryl-nitro blue tetrazolium chloride, in the presence of phenazine methosulphate and a detergent, at a weakly acidic pH value, and evaluating the coloration obtained as a measure of the initial acid content. The method is particularly efficacious in substantially eliminating disturbance of the reaction by foreign substances. |
申请公布号 |
DE2754944(A1) |
申请公布日期 |
1979.06.13 |
申请号 |
DE19772754944 |
申请日期 |
1977.12.09 |
申请人 |
BOEHRINGER MANNHEIM GMBH |
发明人 |
DENEKE,ULFERT,DR.RER.NAT.;MICHAL,GERHARD,DR.RER.NAT.;BEAUCAMP,KLAUS,DR.RER.NAT. |
分类号 |
G01N33/82;C12Q1/26;G01N21/78;G01N31/00;G01N33/02;G01N33/14;(IPC1-7):G01N31/22 |
主分类号 |
G01N33/82 |
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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