查询词典 reagent

Stduied on the recycling and reusing technology of the raw material and reagent at the extracting process.(3) Stduied on the pharmacokinetics of glycocholic acid in rat.

本文在实验室提取纯化牛羊混合胆汁中有效成分工艺的基础上，通过改进和完善工艺、扩大试验规模，建立了一套稳定、可靠的从牛羊混合胆汁中提取分离天然牛磺酸、胆酸、甘氨胆酸及牛磺胆酸的小试工艺技术路线，并对提取过程中废弃的的原料及试剂进行了回收套用研究，同时开展了有效成分甘氨胆酸在大鼠体内的药代动力学研究。

In this paper, the glyoxal structure both in reagent and in bulking solution were detected by infrared spectro and mass spectra, the result shows that there is no aldehyde group but only hydrate existing in both solutions. Besides, the mechanism of the ac-tion between glyoxal and waterlogged wood is discussed and some problems like how to prevent the bulk-ing solution from acidification are also mentioned.

此外，还运用红外光谱和质谱法测定了试剂乙二醛和加固液的结构，详细讨论了乙二酯在试剂和加固液中官能团的存在形式和聚合状态的细微变化，指出在二种溶液中并不存在醛基，乙二醛仅以水合物的形式存在并讨论了乙二醛与饱水古木的作用机理，提出用醇溶液能有效控制乙二醛使用中易返酸等问题。

A method for extracting hexavalent chromium in soil by means of different extraction reagent was studied.

研究了土壤中Cr6＋的提取测定方法。

In the absence of organic solvent and phase-transfer reagent, the catalytic oxidation of cyclo- hexene to adipic acid with aqueous 30% hydrogen peroxide can be achieved in the presence of tungstic acid/acidic organic additive.

以钨酸/有机酸性添加剂为催化体系，在无有机溶剂、相转移剂的情况下，催化 30%过氧化氢氧化环己烯合成己二酸。当钨酸∶有机酸性添加剂∶环己烯∶过氧化氢=1∶1∶40∶176(摩尔比，钨酸用量为 2.5 mmol)时，使用有机酸性添加剂考察钨酸的催化性能，结果表明以钨酸/间苯二酚催化氧化环己烯的催化效果最优，反应 8 h 时己二酸分离产率达 90.9%、纯度为～100%；而不使用有机酸性添加剂时，己二酸分离产率只有 72.1%，产品纯度为 96.2%。

These conditions included original material source, reagent ratio, base solutions, power of the microwave, reaction time and so on.2, Chitosan obtained from above was modified by Schiff base type macrocycles, which was prepared by the reaction of the reagents of salicylaldehyde, glacial acetic acid, hydrobromic acid, chloroepoxy propane and the others.

反应的最优化条件为：物料比1：25；反应时间20min；NaOH溶液浓度为50%；微波功率为450w。 2、利用原料水杨醛、氢溴酸、冰醋酸等采用四步法合成了含羟基的Schiff碱型大环化合物，然后以取代方法将此Schiff碱型大环化合物负载到壳聚糖上，得到具有特殊结构与性能的壳聚糖衍生物，并得到各中间产物的红外光谱图。

Methods The quality of tissue hydroextractor was increased by various angles of reagent examination, correct clipping and standard management etc.

从试剂检测、正确取材、规范管理等角度，保证组织脱水质量。

The method comprises following steps: reacting hydroxylation carbon nano-tube successively with reagent containing halogen and hydrosulphide to prepare sulfhydryl carbon nano-tube; reflowing the sulfhydryl carbon nano-tube and platinum salts in polyatomic alcohol, processing in hydrogen atmpsphere to obtain sulfhydryl anchoring platinum / carbon nano-tube catalyst; reflowing the sulfhydryl carbon nano-tube successively with the hydrochloroauric acid and the platinum salts in polyatomic alcohol, processing in hydrogen atmpsphere to obtain sulfhydryl anchoring platinum-gold / carbon nano-tube catalyst.

本发明将市售羟基化碳纳米管先后与含卤试剂和氢硫化物反应得到巯基化碳纳米管。再将巯基化碳纳米管与铂盐在多元醇中回流，氢气氛中处理得到巯基锚固铂/碳纳米管催化剂。将巯基化碳纳米管依次与氯金酸和铂盐在多元醇中回流，氢气氛中处理得到巯基锚固铂-金/碳纳米管催化剂。

The hydroxamic acids are localized in different tissues and organs of maize seedling by means of special reaction between hydroxamic acid and ferric chloride reagent.

本研究应用三氯化铁试剂与氧肟酸的特殊反应，将氧肟酸葡萄糖苷在玉米幼苗体内不同组织和器官中做了科学定位。

After pre-treating by the mixed reagent-Hc and one rough flotation( the agent dosage was: sodium silicate 2500g/t, carloxy methyl cellulose 100g/t, hydroximic acid 700g/t, turpentine 20g/t), the concentrate containing 30-31% TiO2 with a recovery of 33-35% can be obtained.

运用混合试剂Hc(用量为47.6kg／t)预处理并经一次粗选(药剂制度为：水玻璃2500g／t，CMC100g／t，羟肟酸700g／t，2~#油20g／t)后，可得到TiO_2品位为30～31％，TiO_2回收率为33～35％的精矿指标。

Products are widely used for identity cards, history, photographs, drawings, credit cards, certificates, business licenses, rare letters, securities, Pass, on behalf of all types of certificates, such as flake material sealed and protected by the sheet molding material is waterproof, anti-vandalism, moisture-proof, Insectproof, Mildew change, corrosion resistance reagent corrosion functional excellence, and rough appearance, improve transparency.

产品广泛用于身份证，文史资料，照片，图片，信用卡，许可证，营业执照，珍贵函件，证券，通行证，代表证等各类片状材料的封存和保护，被塑封的片状材料具有防水，防涂改，防潮，防虫蛀，防霉变，耐酸碱化试剂腐蚀等卓越功能，并且挺括美观，提高了透明度。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。