The baseline separation of 9 neutral compounds (thiourea, benzene, toluene, ethyl benzene, n-propylbenzene, naphthalene, n-butylbenzene, fluorene and anthracene) and 7 acidic, basic and neutral compounds (thiourea, o-aminophenol, phenol, benzene, o-methylaniline,α-naphthylamine, 2,4-dichloroaniline) can be obtained under optimized capillary electrochromatographic conditions.

在該均相硅膠基質(zhì)整體柱上成功地分離了9種中性物質(zhì)(硫脲、苯天天色天天日天天干、甲苯人人弄人人玩人人搡、乙基苯、正丙苯国内外免费激情在线视频、萘亚洲哟哟精品网站、正丁基苯、芴和蒽)以及7種中性FreeXXXX性HD中国性、酸性和堿性物質(zhì)(硫脲在线超碰观看、鄰氨基酚、苯酚亚洲国产精品自拍线路、苯三级在线视频观看国产、鄰甲苯胺、α-萘胺和2无码AV一区二区大桥久未，4-二氯苯胺)看黄免费看。

Is a research and development, production, trade and service-based economy of foreign trade entities, chemical raw materials to the professional operation of the main company's existing production of AC blowing agent, ferric chloride, hydrated Hydrazine, p-nitrophenol, m-phenylenediamine, phosphorus trichloride, phosphorus oxychloride, 2,4 - diamino benzene sulfonate, sodium dichloro isocyanurate, N-methyl-o-phenylenediamine Second hydrochloride fine chemical products such as the ability, and are obtained ISO9001 international quality system certification.

濟(jì)南華爾沃進(jìn)出口貿(mào)易有限公司是一家集研發(fā)日韩一级aa大片免费视频、生產(chǎn)可以的黄色网站有哪些、貿(mào)易、服務(wù)于一體的外貿(mào)型經(jīng)濟(jì)實(shí)體国产网站自拍，以專業(yè)經(jīng)營化工原料為主加勒比在线视频一区，公司現(xiàn)有生產(chǎn)AC發(fā)泡劑、三氯化鐵91精品久久久久久中文字幕无码、水合肼黄页网站在线观看视频在线、對硝基苯酚、間苯二胺538再线视频、三氯化磷欧美日韩激情A片视频一站、三氯氧磷、2激情视频毛片在线观看，4—二氨基苯磺酸鈉欧美大吊爆草、二氯異氰脲酸鈉、N-甲基鄰苯二胺二鹽酸鹽等精細(xì)化工產(chǎn)品的能力A级国产国偷自产在线观看，并且均以取得ISO9001國際質(zhì)量體系認(rèn)證国产一区对白清晰国语。

On the basis of these principles and requirements,in this paper,a new modifier has been synthesized from pyromellitic dianhydride and thiosemicarbazide by the nucleophilic addition of anhydride,the cyclization of acyl thiosemicarbazide in alkaline solution,and the N-hydroxymethylation of the triazole-thione.

本文根據(jù)這一思路，以均苯四甲酸二酐和氨基硫脲為起始原料视频黄色网址，通過酸酐的親核加成反應(yīng)日韩精品福利片动漫在线观看、酰氨基硫脲的堿性環(huán)化反應(yīng)、三唑硫酮環(huán)的N-羥甲基化反應(yīng)合成出了一種新的N-羥甲基三唑硫酮酸改性劑操操操操网。

The preliminary bioassays indicated that, at 500 g/mL, 1-(o-tolyl-4-(4-chloro-3-ethyl-1-methylpyrazol-5-ylcarbonyl)semicarbazide (4g) and 1-(2,4-dimethyl- phenyl)-4-(4-chloro-3-ethyl-1-methylpyrazol-5-ylcarbonyl)semicarbazide (4k) showed inhibitory activities 90% and 80% against Blumeria graminis, respectively; and at 25 g/mL, 4-phenyl-4-(4-chloro-3-ethyl-1- methylpyrazol-5-ylcarbonylsemicarbazide (4c) showed inhibitory activity 70.1% against Botrytis cinerea and 1-2-nitro-phenyl-4-(4-chloro-3-ethyl-1-methylpyrazol-5-ylcarbonylsemicarbazide (4d) showed inhibi-tory activitiy 51.3% against Pyricularia oryzae.

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The structures were identified by IR, UV,〓 NMR and element analyses. 2. Free radical 4-hydroxy-2,2,6,6-tetramethyl-1-piperidinyloxyl as catalyst, the phase transfer catalyzed method of oxidation eighteen semicarbazides to N-Aryl-2-Phenyl diazenecarboxamide with a solution of potassium ferricyanide in 2N aqueous sodium hydroxide and dichloromethane is described for the first time.

利用2国产日韩欧美有码总站，2，6亚洲第一黄片播放器，6-四甲基-4-羥基-1-哌啶氮氧自由基為相轉(zhuǎn)移催化劑美女的隐私秘视频网站免费下载，在飽和鐵氰化鉀的2N氫氧化鈉溶液與二氯甲烷的兩相反應(yīng)液中，催化氧化十八個取代氨基脲得到十八個相應(yīng)的新型偶氮化合物N亚洲精品美女久久久久9999，2-二芳基二氮亞烯甲酰胺国产精品九九九久久，均獲得了較高的產(chǎn)率。