pyrocatechol

Market prospect and production methods for pyrocatechol and hydroquinone are reviewed.

概述邻苯二酚、对苯二酚的市场前景、生产方法.

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Application of Pyrocatechol Violet to Spectrophotometric Analysis of Trace Cadmium Determination

邻苯二酚紫在光度分析测定痕量镉中的应用

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Factor analysis-UV Spectrophotometry was used simultaneously to determine the contents of a three-component system consisting of pyrocatechol, resorcinol and hydrochinone. The method was simple and fast, with a recovery of 93. 52~ 107. 20% and an average percentage error of 2.17%.

本文运用因子分析-紫外分光光度法同时测定邻苯二酚、问苯二酚和对苯二酚三组份含量，方法简单快速，回收率93.52～107.20%，平均百分误差2.17%。

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Treatment of waste water containing pyrocatechol catalyzed by horseradish peroxidase ( HRP ) was studied.

研究了用辣根过氧化物 酶 催化处理邻 苯二酚 废水的效果.

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The inhibition of pyrocatechol on sulfite oxidation was investigated by oxygen removal and air oxidation tests.

通过除氧试验和空气氧化试验,研究了焦儿茶酚对亚硫酸盐自动氧化的阻滞作用.

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If the assumed mechanism of pyrocatechol is correct, the inhibited gypsum may react on a later stage and lead to a kind of delayed ettringite formation that could generate expansion and cracking.

如果假定上述机理是正确的，那么被抑制溶解的石膏会在水化后期发生反应，导致延迟钙矾石生成并使水泥浆体产生膨胀开裂。

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Studies on Extraction Spectrophotometry of Ternary Molybdenum(ⅵ) 4 ( 5 Bromo 2 Thiazolylazo) Pyrocatechol Diphenyl Guanidine Ion Associate

钼（Ⅵ）-4-（5-溴-2-噻唑偶氮）邻苯二酚-二苯胍三元离子缔合物的萃取分光光度研究

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A kinetic spectrophotometry for determining trace vanadium in environment has been established, which is based on the catalytic effect of vanadium on the oxidation of o ─ phenlonediamine with potassium bromate in the presence of activator pyrocatechol in KHP ─ HCl buffer solution.

基于V（v）在KHP&HCl缓冲溶液中，邻苯二酚活化剂存在下，对溴酸钾氧化邻苯二胺的催化作用，建立了一个测定环境样品中痕量机的催化动力学光度法。

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