英语人>网络例句>加入甲醇的 相关的搜索结果
网络例句

加入甲醇的

与 加入甲醇的 相关的网络例句 [注:此内容来源于网络,仅供参考]

The number of atomic and sub-surface oxygen species may decrease with the addition of iodine.

碘的加入可使原子氧和次表层氧物种种类更单一,更有利于甲醇的氧化脱氢反应。

A steel bar is washed and dried, and then put into a glass pipe which is sealed to obtain stirring magneton; a mixed solvent of Gamma-methacrylate oxide propyl trimethoxy silane and methanol is prepared and added with an organic base to obtain a pre-bonding solvent; the stirring magneton is immerged into the pre-bounding solvent, and the outer surface of the glass pipe of the stirring magneton is bonded with a layer of silane substance with alkenyl; a reactive monomer mixture and a pore-forming agent mixed solvent are evenly mixed and then added into a container, the stirring magneton after the pre-bounding is put into the container which is sealed and then put into a water bath; after reaction, the container is removed, the stirring magneton coated with a polymer is taken out and put into a extractor and extracted by using a solvent; or the stir bar is immersed into the solvent till no impurity can be checked in the solvent, thereby obtaining the product.

将铁条清洗干燥,放入玻璃管内,密封得搅拌磁子;配制γ-甲基丙烯酸氧丙基三甲氧基硅烷与甲醇的混合溶液,加入有机碱得预键合溶液,将搅拌磁子浸入预键合溶液,在搅拌磁子的玻璃管外壁键合一层带烯基的硅烷化物质;将反应单体混合剂和致孔剂混合溶液混匀后倒入容器中,将预键合后的搅拌磁子放入容器,密封后置于水浴中,反应后除去容器,取出涂有聚合物的搅拌磁子,置于提取器中,以溶剂提取,或将搅拌棒置于溶剂中浸泡至溶剂中无杂质检出,得产物。

High concentration of SO〓 did not interfere the determination of NO〓 because SO〓 was eluted later than NO〓. The effects of the concentration of sodium borate and CTAB on separation were also examined.

由于加入甲醇后,SO〓在NO〓后出峰,有利于河水中高浓度SO〓存在下,少量NO〓的测定,同时也考察了硼砂和CTAB的浓度对分离的影响。

The anode catalyst for direct methanol fuel cell is Pt-W-Sn/C, and it is prepared through dispersing carbon black in distilled water, adding H2PtCl6, tungstate and stannate, stirring to make the metal salt and H2PtCl6 adsorbed fully; dropping reductant to reduce and deposite until complete reaction; washing with distilled water, filtering and drying to obtain black C carried sanitary Pt-W-Sn catalyst. The catalyst has excellent methanol catalyzing activity and low cost, and its use can lower the cost of direct methanol fuel cell greatly and raise the performance/cost ratio of the cell.

一种直接甲醇燃料电池阳极催化剂是Pt-W-Sn/C;其制备方法是将碳黑分散在蒸馏水中,然后加入H2PtCl6、钨酸盐和锡盐,搅拌使得金属盐与H2PtCl6被充分吸附;逐滴加入还原剂使之还原沉积,待反应完全后,用蒸馏水洗涤,过滤,然后于干燥箱中干燥,便得到黑色的C负载Pt-W-Sn三元催化剂;该催化剂具有很好的甲醇催化活性,价格低廉,可以大大降低直接甲醇燃料电池的成本,提高电池的性能价格比和市场竞争能力。

In the residual titration, excess Reagent is added to the test specimen, sufficient time is allowed for the reaction to reach completion, and the unconsumed Reagent is titrated with a standard solution of water in a solvent such as methanol.

在回滴定法,过量的卡尔试剂加入到待测样品中,给与足够的时间去达到反应完全,未消耗的卡尔试剂用溶于溶剂例如甲醇的标准水溶液去滴定。

Anthocyanidin extract in methanol showed 3 absorption peaks, at 270, 340 and 520 nm, in the UV-vis spectrum, with bathochromic and hypsochromic shift with methanol+AlCl3 and methanol+AlCl3+HCl, respectively; the ratio of the absorbance at 440 nm to that at 520 nm was 0.29. No fluorescence occurred under UV irradiance, and 5 absorption peaks occurred at 270 nm after HPLC. Five molecular ion peaks occurred on MS: 595, 381, 611, 587 and 571, respectively, and monosaccharides in the extract were identified as rhamuose and glucose on HPLC.

一品红花色素的甲醇溶液分别在270、340 和520 nm 处有 3 个吸收峰;在 440 nm 吸光度与可见光最大吸收波长 520 nm 吸光度的比值为0.29;花色素的甲醇溶液中加入AlCl3后发生红移,再加入HCl后发生蓝移;色素溶液在紫外光下无荧光;色素样品经液相色谱分离后在 270 nm检测有 5 个比较明显的吸收峰;质谱中得到 595、611、381、571 和 589 等对应的分子离子峰;花色素酸解液高效液相色谱图谱和鼠李糖、葡萄糖的出峰时间一致。

Under the same conditions, the electrocatalytic ability of the electrode was higher than that of the pure Pt electrode.

结果表明Pt-Ru微粒电极对甲醇的电氧化显示出催化作用, Ru的加入提高了电极的抗中毒能力。

Glyoxylic acid was prepared by reaction of sodium hydroxide surplus with methyl dichloroacetate in methanol solution via neutralization of filtrate with 50 percentage sulfuric acid to pH 2~3 and hydrolyzation after separation of salts.

二氯乙酸甲酯和过量的氢氧化钠在甲醇溶液中反应,滤出氯化钠后,直接加入适量的 5 0 %的硫酸调 pH值为 2~ 3,滤出硫酸钠,蒸馏回收甲醇,水解、浓缩,得到不含乙二醛的 4 0 %乙醛酸溶液。

The synthesis method of the invention is as follows: first, 5-amino-2-(p-aminophenyl)- benzoxazole and aliphatic diacid are respectively recrystallized; NMP is distilled; solubilizer is dried; second, in an atmosphere of nitrogen, after Py and NMP are mixed evenly and added to a sealed reactor, the solubilizer is added into the reactor, followed by the 5-amino-2-(p-aminophenyl)- benzoxazole, then the mixture in the reactor is stirred; second, in an atmosphere of nitrogen, the mixture in the second step is stirred and heated to 50-150 DEG C, then the aliphatic diacid is added, followed by TPP for condensation; fourth, after methanol is poured into the reactor, the sediment is separated out from the mixture, filtered, washed and dried, so the semi-aromatic polyamide containing oxazole ring is obtained.

本发明的合成方法如下:一、分别重结晶5-氨基-2-苯并唑与脂肪族二酸;蒸馏NMP;干燥增溶剂;二、在氮气气氛下,Py与NMP混匀后加入密封的反应器中,再加入增溶剂,然后加入5-氨基-2-苯并唑,搅拌;三、在氮气气氛下,将步骤二的混合液搅拌并升温至50℃~150℃后加入脂肪族二酸,再加入TPP后缩聚;四、再倾入甲醇析出沉淀,过滤,清洗沉淀,再干燥;即得到含唑环半芳香聚酰胺。

The oxidation of benzyl alcohol produces benzoic acid and benzaldehyde selectively with the amounts of hydrogen peroxide varying.

苯甲醇氧化时,随过氧化氢加入量的不同,可以选择性地给出苯甲醛和苯甲酸。

第1/4页 1 2 3 4 > 尾页
推荐网络例句

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。

The shamrock is the symbol of Ireland and of St.

三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。