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中国精品科技期刊2020
汪菊, 付大友, 徐晨曦. 食品中亚硝酸盐快速检测方法的研究[J]. 食品工业科技, 2015, (09): 278-281. DOI: 10.13386/j.issn1002-0306.2015.09.052
引用本文: 汪菊, 付大友, 徐晨曦. 食品中亚硝酸盐快速检测方法的研究[J]. 食品工业科技, 2015, (09): 278-281. DOI: 10.13386/j.issn1002-0306.2015.09.052
WANG Ju, FU Da-you, XU Chen-xi. Study on the rapid determination method of nitrite in food[J]. Science and Technology of Food Industry, 2015, (09): 278-281. DOI: 10.13386/j.issn1002-0306.2015.09.052
Citation: WANG Ju, FU Da-you, XU Chen-xi. Study on the rapid determination method of nitrite in food[J]. Science and Technology of Food Industry, 2015, (09): 278-281. DOI: 10.13386/j.issn1002-0306.2015.09.052

食品中亚硝酸盐快速检测方法的研究

Study on the rapid determination method of nitrite in food

  • 摘要: 为探讨出一种适合现场快速检测食品中亚硝酸盐的方法,本文根据化学显色反应研制出一种检测试纸,该试纸以中速定性滤纸作为材料,选用1.2%对氨基苯磺酸溶液与0.6%盐酸萘乙二胺溶液按体积比1∶1作为显色剂,在溶液p H为2.0条件下浸泡15min,然后在40°C真空干燥箱下干燥30min。将试纸法与国标法进行比较,结果表明试纸法具有成本低、操作简单、携带方便、适合现场检测等优点,能够满足定性和半定量分析的要求。 

     

    Abstract: A test paper was developed in order to explore a method for rapid detection of nitrite in food based on the chemical chromogenic reaction in this test. The test paper used medium speed quantitative filter paper as material and 1.2% sulfanilic acid solution mixed with 0.6% hydrochloric acid naphthalene ethylenediamine solution by volume ratio 1∶1 as a chromogenic agent.The test paper should be immersed in the agent by p H2.0 for 15 min and dried in 40°C by vacuum oven for 30 min.Compared with national standard method,the results showed that the test paper method has a lower cost and more simple to operate and easier to carry. Also it's suitable for field testing and could meet the requirements of qualitative and semi- quantitative analysis.

     

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