The tail group of cysteamine containing amine moiety can easily protonize in acidic conditions. Heterpolyanions was successfully immobilized on such a positive-charged surface. By using quartinized conducting polymer containing osimium-bipyridine complexes, a sandwiching multilayers has been fabricated.

利用氨端基自組裝膜在酸性條件下荷正電的特點西西人体大胆午夜视频无码，成功地將荷負電的雜多酸分子固定于其上，并在此基礎上，通過荷正電的季胺化聚合物組裝了多層的雜多酸修飾電極。

The optimum processing conditions for the preparation of sodium copper chlorophyllin from saponified paste of pine needles are as follows: sodium chlorophyllin is clarified by adding water ratio of water to paste 5:1

從皂化的松針軟膏制備松針葉綠索銅鈉的最適工藝：葉綠酸鈉澄清用水量為松針軟膏重量的5倍欧美性爱俺去操你啦；葉綠酸鈉沉淀時，20％濃度硫酸銅溶掖用量為松針軟膏重量的10—11％国产免费一区二区视频。

After regulation of the equipments and usage in production, it is proved that the one-step mode dehydration technique is successful and makes a base for the continual production of the brown alga acid and fills up the blank of this technique in our country.

設備經(jīng)調(diào)試和生產(chǎn)使用證明中文字幕又黄又刺激的的网站，一步法脫水技術的研究是成功的，填補了我國褐藻酸連續(xù)脫水技術的空白真实处破在线播放，為我國褐藻酸連續(xù)化生產(chǎn)奠定了基礎午夜视频在线国产郎色。

Besides, n-butyl and sec-butyl tosylate that are difficult for oxidative addition can react with phenylmagnesium bromide to form corresponding cross-coupling products. Primary alkyl halide which contains β-hydrogen and is relatively hard to undergo the reaction , n-butyl chloride for instance, can react with aryl Grignard reagents in the presence of NiB alloy as well.

此外，難以進行氧化加成的對甲苯磺酸正丁酯和對甲苯磺酸仲丁酯可以與苯基溴化鎂作用生成相應的交叉偶聯(lián)產(chǎn)物国外女网址www女；反應相對困難的含β-H的伯鹵烷黄色彩网，如：正氯丁烷也可以在NiB催化下與芳基格氏試劑發(fā)生偶聯(lián)。

And the morphologies of lead tungstate crystal were different when different surfactants of polygycol 200 and cetyltrimethyl ammonium bromide were added in the experiments.

以鎢酸鈉和醋酸鉛為原料一区二区三区无码日韩久久，分別加以表面活性劑聚乙二醇200和十六烷基三甲苯溴化銨91超碰日韩精品国产，用沉淀法合成出鎢酸鉛納米晶和菱形微晶。

It is concluded that various phenolic acids had irregular effects on the growth of the pathogens at different concentrations, and there is a complicated relationship between the autotoxins and the occurrence of disease in the ginseng field.

不同酚酸在不同濃度下對2種西洋參病原菌作用不同亚洲日韩高清AⅤ在线观看，在田間實際情況下人人操人人干47，化感酚酸與西洋參病害的發(fā)生之間可能是一種復雜的過程

Said metal nitride is prepared through mixing the aqueous soltuion of nitrate or sulfate of A with the aqueous soltuion of Cr, Mo or W acid or one of their ammonium salts, coprecipitation or impregnation to obtain load-type or non-load-type dual-component metal salt or compound oxide, then pass in NH3, sequentially heating and azotizing at 600-750 deg.C.

該金屬氮化物是由含A過渡金屬元素的硝酸鹽或硫酸鹽水溶液與Cr涩视AV、Mo或W酸或者Cr黄色一级片一级片、Mo或W酸銨水溶液混合，通過共沉淀法或浸漬法制成負載型或非負載型雙組元金屬鹽或復合氧化物国产精品久不卡在线观看蜜，再將雙組元金屬鹽或復合氧化物通NH3進行程序升溫男人女人插动态，至最終氮化溫度600～750℃下進行反應而制得。

Cellulose acetate butyrate,which is widely applied as coatings additive, is synthesized in the heterogeneous system. The activation is required because of the strong hydrogen intramolecular and intermolecular bondings and the regulation of the crystalline region in cellulose microfibrils.

中文摘要纖維素醋酸丁酸酯（Cellulose acetate butyrate是一種廣泛應用于涂料工業(yè)的添加劑亚洲色图偷，由于纖維素具有分子內(nèi)與分子間強氫鍵作用以及纖維素纖維的局部規(guī)整的結晶序列等特征亚洲国产欧美日韩AⅤ，一般纖維素在酯化反應前都需要進行預活化處理，工業(yè)上纖維素醋酸丁酸酯的合成方法一般都在非均相體系中進行的国产美女AAA在线。

Segmented polyester polyurethaneurea based n 4, 4'-disphenylmethane diisocyanate, ethylene diamine and polybutylene adipate elastomers and their deuterated polymers were studied by means of IR spectroscopy.

用紅外光譜法對基於4九九视频精品38在线播放，4'-二苯基甲烷二異氰酸酯、乙二胺和聚己二酸丁二醇酯的嵌段聚酯型聚脲氨酯彈性體及其氘化產(chǎn)物進行了研究欧美性交片网站。

Dibutyl succinate was synthesized catalyzed by a strong acid cation exchange resin from succinic acid and n-butyl alcohol.

用強酸性陽離子交換樹脂催化丁二酸和正丁醇的酯化反應欧美乱婬视频婬色，合成了丁二酸二丁酯。