Method for quantitatively analyzing hydrogen peroxide working solution produced by anthraquinone process by using normal-phase efficient liquid adsorption chromatography
A high-performance liquid chromatography and high-performance liquid phase technology, which is applied in the field of quantitative analysis of using normal-phase high-performance liquid adsorption chromatography to analyze the production of hydrogen peroxide working solution by anthraquinone method, and can solve the problem of disordered peaks of components and inability to accurately measure content, etc. problems, to achieve the effect of high sensitivity, good resolution, and short analysis time
Inactive Publication Date: 2012-10-03
XIANGTAN UNIV
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In this system, the peaks of the components in the working fluid are messy, especially the C in heavy aromatics. 10 The peaks
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[0033] A quantitative analysis method for producing hydrogen peroxide working fluid by normal phase high performance liquid phase adsorption chromatography analysis anthraquinone method:
[0034] 1.1 Selection of chromatographic column
[0035] The chromatographic column is a highly polar silica gel column, and the specific specification model is: Agilent ZORBAX SIL, 5μm, 4.6×250mm
[0036] 1.2 Selection of mobile phase
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The invention provides a method for quantitatively analyzing the total amount of 2-ethylanthraquinone, tetralin-2 ethylanthraquinone and degradation substances in a hydrogen peroxide working solution produced by anthraquinone process by using normal-phase efficient liquid adsorption chromatography. Compared with the conventional reverse-phase efficient liquid distribution chromatography analysis method, the method has the advantages that separation degree of different types of substances including a heavy aromatics series, anthraquinone and degradation substance series and trioctyl phosphate is high, analysis time is short, and the sensitivity of a degradation substance peak is high. Besides, the problem that a heavy aromatics C10 component and a 2-ethylanthraquinone and degradation substance peak are overlapped in reverse-phase liquid distribution chromatography analysis is solved, and an analysis result is accurate.
Description
technical field [0001] The invention relates to a method for quantitatively analyzing the total amount of 2-ethylanthraquinone, tetrahydro-2-ethylanthraquinone and degradation products of hydrogen peroxide working solution produced by anthraquinone method. Background technique [0002] Hydrogen peroxide is a green chemical product with almost no pollution during its production and use, and is widely used in medicine, military industry, chemical synthesis, textile, papermaking, environmental protection, food, agriculture and other fields. Throughout the large-scale hydrogen peroxide production companies at home and abroad, most of them use the anthraquinone method to produce hydrogen peroxide. The process of anthraquinone production of hydrogen peroxide is: [0003] Dissolve the alkylanthraquinone (mainly 2-ethylanthraquinone) in an appropriate mixed solvent (trioctyl phosphate and C 9 ~C 11 and other heavy aromatics), it is prepared as a working fluid. The hydrogenation r...
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Inventor 段正康彭叶李海涛王世青冯正坤刘其良
Owner XIANGTAN UNIV
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