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has been cited by the following article:

• TITLE: Effects of Standing Time during Pretreatment on the Nitrite Concentration Detected by Spectrophotometric Method

  AUTHORS: Yingfei Zeng, Juan Hu, Xianglong Bian, Qianfeng Xia, Tingwei Hu

  KEYWORDS: Standing Time, Spectrophotometric Method, Nitrite Detection

  JOURNAL NAME: Journal of Materials Science and Chemical Engineering, Vol.12 No.2, February 27, 2024

  ABSTRACT: Food safety problems caused by excessive nitrite addition have been frequently reported and the detection of nitrite in food is particularly important. The standing time during the pretreatment of primary sample has a great influence on the concentration of nitrite tested by spectrophotometric method. In this context, three kinds of food samples are prepared, including canned mustard, canned fish and home-made pickled water. A series of standing times are placed during the sample pretreatments and the corresponding nitrite contents in these samples are detected by spectrophotometric method based on N-ethylenediamine dihydrochloride. This study aims to find out a reasonable standing time during the pretreatment of food sample, providing influence factor for precise detection of nitrite.