查询词典 sulfuric

Corn stalk pretreated by dilute sulfuric acid was hydrolyzed by the dosages of 20 FPIU/g Trichoderma reesei cellulase and 4 IU/g β-glucosidase at the substrate concentration of 100 g/L for 48 h, the concentration of cellobiose and glucose in hydrolysate were 1.12 and 42.68 g/L, respectively, the yield of enzymatic hydrolysis and the ratio of fermentable sugar were 62.85% and 97.44% respectively.

底物质量浓度为100g/L的稀硫酸预处理玉米秸秆，经酶用量为20 FPIU/g的里氏木霉纤维素酶和4IU/g的β-葡萄糖苷酶水解48h，水解糖液中纤维二糖和葡萄糖质量浓度分别为1.12和42.68g/L，纤维素水解得率和可发酵性糖的比例分别为62.85%和97.44%。

Cellulose nitrate was obtained via nitration of cellulose using the mixture of sulfuric acid and nitric acid.

利用粘度法测定了制备的硝酸纤维素的分子量为1.3×10~5 g·mol~(-1)。

Objective: To investigate a novel method of dopamine determination by chemiluminescence in sulfuric acid solution.

目的：建立硫酸环境中流动注射化学发光法测定多巴胺的新方法。

The company mainly engaged in the National one of the top ten chemical companies Juhua Products Group, the main one has Chloromethane, dichloromethane, chloroform, cyclohexanone, cyclohexane, caprolactam, PVC resin, sulfuric acid amine, F11, F12, F22, R600A, R134A refrigerant, antiseptic products, welcome you Tongren call letter and look forward to your cooperation and common development!

公司主要经营全国十大化工企业之一的巨化集团公司的产品，主要有一氯甲烷、二氯甲烷、三氯甲烷、环己酮、环己烷、己内酰胺、PVC树脂、硫酸胺、F11、F12、F22、R600A、R134A制冷剂等产品，欢迎各位同仁来电来函，期待能与你们合作，共同发展！

The round trip flow time is cut short from two hours to ten minutes and the method adopts silver nitrate-bismuth nitrate united screening method to eliminate the disturb of chorine ion instead of strenuous noxious mercury sulfuric.

本方法适当提高硫酸浓度，强化了重铬酸钾的氧化效率，使回流时间由 2h缩短到 10min ；并且用硝酸银和硝酸铋联合掩蔽法能消除氯离子的干扰，代替剧毒的硫酸汞。

Produced by Hong Fanna, chromium anhydride, sulfuric acid anhydride, chrome green exported to the United States, Canada, Japan and Hong Kong and other countries and regions.

所产红矾钠、铬酸酐、硫酸酐、铬绿远销美国、加拿大、日本及香港等国家和地区。

Based on these facts, the properties of films regenerated from new aq. alkali soluble cellulose/NaOH solution with sulfuric acid as coagulator were studied. The structure and morphology of the film was characterized by SEM, and also the influence of coagulator concentration on the film property was studied.

在此基础上，对新型碱可溶纤维素/NaOH水溶液体系在以硫酸水溶液为凝固剂时所成膜的性能进行了研究，采用SEM电镜对膜的结构与形态进行了分析表征，研究了凝固剂浓度对膜性能的影响。

Methods:The polysaccharides level was measured by colorimetry and phenol sulfuric acid method with glucose as the standard.

采用苯酚硫酸法，以葡萄糖为对照品，测定总多糖的含量。

Through review of hydrochloric acid, sulfuric acid, the chemical nature of the general out of the common gender , both to enable students to understand the process of awareness of things, but also cultivate their comparison,...

通过复习盐酸、稀硫酸的化学性质概括出酸的通性，既让学生了解人们认识事物的过程，又培养了他们的比较、。。。

Through the review of hydrochloric acid, sulfuric acid, the chemical nature of the general out of the common gender , both to enable students to understand the process of awareness of things, but also cultivate their comparison,...

通过复习盐酸、稀硫酸的化学性质概括出酸的通性，既让学生了解人们认识事物的过程，又培养了他们的比较、。。。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。