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Determination of Trace Nitrite by Catalytic Spectrophotometry
Author(s): 
Pages: 49-51
Year: Issue:  9
Journal: GUANGDONG TRACE ELEMENTS SCIENCE

Keyword:  亚硝酸根催化光度法溴酚红;
Abstract: 基于稀磷酸介质中亚硝酸根催化溴酸钾氧化溴酚红的褪色反应,建立测定痕量亚硝酸根的新方法.方法检出限为0.58×10-6g/L,线性范围为0.5×10-6~20×10-6g/L,回收率为96%~104%.该法已用于食品中亚硝酸根的测定,结果满意.
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