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- pyrocatechol sulfonphthalein 邻苯二酚磺酞
- Pyrocatechol is one of the important fine chemical intermedium. 邻苯二酚是一种重要的精细化工中间体。
- The pyrocatechol's price (99%) is 36500 yuan per ton. 含量99%25的邻苯二酚市场售价约为36500元/吨。
- The synthesis of 1,2-dimethoxybenzene from chloromethane combined with pyrocatechol is introduced in this paper. 本文介绍了以氯甲烷和邻苯二酚为原料合成1,2-二甲氧基苯的方法。
- The synthesis of 1,2-dimethoxybenzene from chloromethane combined with pyrocatechol is introduced in this artcile. 本文介绍了以氯甲烷和邻苯二酚为原料合成1,2-二甲氧基苯的方法。
- The synthesis of 1,2-dimethoxybenzene from chloromethane combined with pyrocatechol was introduced in this article. 介绍了以氯甲烷和邻苯二酚为原料合成邻苯二甲醚的方法。
- 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。
- The production and consumption situation of pyrocatechol were analysed in country and abroad. 分析了国内外邻苯二酚生产和消费状况。
- 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。
- 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。
- The results showed that the roselle calyx pigment was a kind of anthocyanin with pyrocatechol and pyrogallol hydroxyl, as well as had glucose and xylose glycoside. 结果表明:玫瑰茄红色素属于花青甙类色素,有邻二酚羟基或邻三酚羟基,含有葡萄糖和木糖两种糖苷。
- Tyrosine phenol lyase(TPL) is a key enzymewhich could catalyze the biosynthesis of L-DOPA from pyrocatechol, sodium pyruvate andammonia. 酪氨酸酚裂解酶(tyrosine phenol-lyase, TPL)是生物合成左旋多巴的重要酶。 该酶可以催化邻苯二酚、丙酮酸钠和氨合成左旋多巴。
- Two disubstituted benzocrown ethers have been synthesized by two methods with pyrocatechol, their compositions and structures have been characterized. 以邻苯二酚为原料,采用不同的方法合成了两种双取代苯并冠醚,并进行了结构表征,确认其组成。
- A method to determine pyrocatechol and p-dihydroxybenzeqe in the presence of each other with carbon paste electrode by DPV was reported. 本文介绍用示差脉冲伏安法(DPV)采用自制的碳糊电极同时测定邻苯二酚与对苯二酚的方法。
- The method was based on the enhancement effect of the resonance light scattering(RLS) due to the combination of pyrocatechol violet with HSA. 基于人血清白蛋白(HSA)对邻苯二酚紫的共振光散射的增强效应,拟定了一种测定HSA的新的共振光散射体系。
- The production,demand,import and export of pyrocatechol in China were analyzed,and the future production and consumption of catechol were predicted. 综合分析了国内邻苯二酚供需、生产和进出口等状况,对今后生产与消费趋势进行了预测。
- The control items of reaction rates were determined and the initial rates equation of pyrocatechol and hydroquinone were obtained. 经动力学分析验证了其反应机理主要是自由基机理,并确定了其中的控制步骤,得到了实验条件下的邻/对苯二酚的初始生成速率方程。
- Indirect determination of total acid-soluble aluminum in natural waters by oscillopolarography in the presence of pyrocatechol violet (PCV ) is presented. 报道邻苯二酚紫(PCV)-示波计时电位法间接测定天然水中的总酸溶铝。
- A spectrophotometric determination of iodine by oxidation decoloration reaction of pyrocatechol violet by iodatein a strong acid medium is reported in this paper. 本文提出了在强酸性条件下,根据碘酸根氧化邻苯二酚紫使其褪色吸光光谱法测定加碘食盐中碘含量的分析方法。
- The synthetic methods of pyrocatechol were introduced.The main production method at present is phenol hydroxyl hydrogen peroxide method, and some advice was put forward. 介绍了邻苯二酚的合成方法,目前其主要的生产方法为苯酚过氧化氢羟基化法,并提出了一些发展建议。