Oxygen Indicator Composed of an Organic/Inorganic Hybrid Compound of Methylene Blue, Reductant, Surfactant and Saponite
Oxygen Indicator Composed of an Organic/Inorganic Hybrid Compound of Methylene Blue, Reductant, Surfactant and Saponite
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DOI：
10.2116/analsci.20.1153
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发表时间：
2004-08
影响因子：
1.6
通讯作者：
Makoto Sumitani;S. Takagi;Y. Tanamura;H. Inoue
中科院分区：
文献类型：
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作者：
Makoto Sumitani;S. Takagi;Y. Tanamura;H. Inoue
一种由亚甲基蓝、阳离子表面活性剂和还原剂嵌入皂土的有机/无机杂化化合物被发现可作为氧指示剂，在氧存在下变色。蓝色染料亚甲基蓝、抗坏血酸或还原糖形式的还原剂和插入合成皂土的十六烷基三甲基铵离子的混合物在氧浓度小于0的大气中变为无色。1 vol%，然后由于随后暴露在空气中而恢复为蓝色。在上述有机/无机杂化化合物中加入颜料苯氧酚B，制成涂在纸上的薄膜形式的氧指示剂，在氧浓度低于0.1 vol%时呈现粉红色，在氧浓度高于0.5 vol%时呈现蓝色。此外，与仅使用亚甲基蓝作为功能染料的指示剂相比，该氧指示剂具有更好的耐光褪色性和储存稳定性。
An organic/inorganic hybrid compound consisting of methylene blue, a cationic surfactant and a reductant intercalated into saponite was found to serve as an oxygen indicator that changes color in the presence of oxygen. A mixture of a blue colored dye, methylene blue, a reductant in the form of ascorbic acid or reducing sugar, and cetyltrimethylammonium ion intercalated into synthetic saponite became colorless in an atmosphere having an oxygen concentration of less than 0. 1 vol%, and then returned to its blue color as a result of subsequent exposure to air. An oxygen indicator, in the form of a thin film coated on paper prepared by adding a pigment, phloxine B, to the above organic/inorganic hybrid compound, exhibited a pink color at oxygen concentrations of less than 0.1 vol%, and a blue color at oxygen concentrations of higher than 0.5 vol%. In addition, this oxygen indicator exhibited superior photo-fading resistance and storage stability compared with indicators using only methylene blue as the functional dye.