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间苯二酚

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04Ppm.The modified electrode was used for selective determination of hydroquinone in the presence of resorcinol,with a satisfactory result.

该修饰电极在间苯二酚存在的条件下,能被用于选择性检测对苯二酚,得到了令人满意的结果。

After 48h exposure, The GST activities were all inhibited under the exposure of phenol and pyrocatechol, but the GST activities were induced at first and then inhibited under the exposure of resorcinol.

处理48h后,体内GST活力随苯酚和邻苯二酚浓度的升高逐渐降低,而间苯二酚对GST活力的影响与处理24h后GST活力的变化趋势相似。

Recently with the need of resorcinol increasing in many industries,the need of m-DIPB is also increasing.

近年来,随着间苯二酚在许多行业中应用的增长,对间二异丙苯的需求也日益增加。

Our company is the production of resorcinol, p-nitrobenzoic acid, pure phenol inter-professional manufacturers.

我公司是生产间苯二酚、对硝基苯甲酸、纯间酚的专业厂家。

Methods: In dilute H2SO4 medium, resorcinol could sensitively inhabit the gallocyanin solution descolorization reaction with KIO4 and H2O2, the optimal condition was investigated, based on which, an inhibition kinetic spectrophotometric method for the determination of resorcinol was established.

在硫酸介质中,间苯二酚能灵敏地阻抑高碘酸钾和过氧化氢氧化棓花青的褪色指示反应,在探讨了反应的优化条件和动力学参数后,建立了测定微量间苯二酚的阻抑动力学光度分析新方法。

Gel-type cross-linked polystyrene-isocyanuric acid resin has been obtained by reaction of chloromethylated polystyrene with isocyanuric acid under the existence of triethylamine.

由氯甲基化低交联聚苯乙烯和异氰尿酸在三乙胺作用下反应,制得了凝胶型交联聚苯乙烯-异氰尿酸树脂,测定了该树脂对苯酚和间苯二酚在不同温度下的吸附等温线,依据Clapeyron-Clausius方程从吸附等温线计算出了吸附热,从热力学的角度论证了树脂是基于氢键键合和疏水作用而吸附苯酚和间苯二酚的。

Resorcinol was prepared from isophthalic acid through liquid-phase catalytic oxidation and subsequent hydrolysis using oxygen in the air as oxidizing agent in the presence of catalyst copper and promoter manganese.

崔建新;肖如亭(天津理工大学生物与化工学院)摘要:以间苯二甲酸为起始原料,在催化剂铜和助剂镁作用下,以空气中的分子氧作氧化剂,通过液相催化氧化继而水解制得间苯二酚

Deoxybenzoin(3) was prepareded by using the resorcinol and substituted phenylacetic as starting meterials in microwave-mediated.Then the compound(3) was reacted with acetic anhydride to produce(4).The compound(4) was hydrolyzed to convert compound(5) in the acid-mediated. The compound(5) was reacted with the 1,2-dibromo-ethane and 1,3-dibromo-propane in refluxed condition with acetone as solvent to give(6) or(7),respectively.Lastly,the title compounds were synthesized by refluxing(6) or(7) with 2-methyl-benzimidazole and potassium carbonate in acetone solution.

以取代苯乙酸和间苯二酚为起始原料,用微波辐射法合成脱氧安息香(3),(3)与乙酸酐缩合生成2-甲基-7-乙酰氧基异黄酮(4),(4)在酸性条件下水解生成相应的异黄酮(5),化合物(5)分别与1,2-二溴乙烷和1,3-二溴丙烷反应生成(6)和(7),化合物(6)和(7)再分别与2-甲基苯并咪唑偶合生成目标化合物。

Reparation of PBO was begun with the polymerization process in which composite salts that contained 4,6-diaminoresorcinol and terephthalic acid were dissolved in polyphosphoric acid and phosphorus pentoxide.

BO纤维制备:以4,6-二氨基间苯二酚的盐酸盐为单体原料,与对苯二甲酸混合,经过中和反应、脱色处理、干燥后制成复合盐;再以多聚磷酸为溶剂,添加五氧化二磷和抗氧化剂,经过预聚合反应制备出PBO聚合物;聚合物通过双螺杆挤出机进一步进行聚合,然后通过喷丝板挤出,在磷酸水溶液中凝固成型,经过洗涤、干燥等过程,最终卷绕成型。

Three composites of the different fibers with epoxy resin matrix are prepared and the corresponding unilateral fiber reinforced winding ring specimens are fabricated. The mechanical poperties of the composites including tensile strength, modulus and three point interlaminar shear strength are tested.

据文献 [2 ]介绍,PBO(聚对亚苯基苯并双口恶唑)是含杂环的苯氮聚合物的一种,它是采用二氨基间苯二酚和对苯二甲酸在多磷酸中聚合、采用空气间隙湿法纺丝法进行纺丝而制得的。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

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Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。