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- Jintan Star Chemical Co., Ltd. is a professional fine chemical production enterprise which has rich experience in diazo reaction, Friedel-Crafts and reducing reaction. 我公司是一家專(zhuān)業(yè)化、研型化工生產(chǎn)企業(yè),在重氮化反應、克反應、原反應、合反應、夫曼反應等方面有豐富的經(jīng)驗。熱忱歡迎您的光臨指導!
- Infrared spectra(IR),mass spectrometry(MS),HPLC,thin layer chromatography(TLC),elementanalysis,visible absorption spectra and the diazo reaction method were used for the identification ofstructure and its character as well as the purity of the product. 用紅外光譜(IR)、質(zhì)譜(MS)、HPLC、薄層色譜(TLC)、元素分析、可見(jiàn)吸收光譜、重氮反應法等手段對產(chǎn)物進(jìn)行了結構鑒定和純度分析。
- Ehrlich diazo reaction [化] 埃利希重氮反應
- Ehrlich's diazo reaction [醫] 歐利希氏重氮反應(檢傷寒、麻疹及結核病)
- Aniline, which not only dissolves in water at low ratio but ethanol, aether and benzene at any ratio as well, can take part in halogenating and diazoing reaction. 有堿性,能與鹽酸(或硫酸)反應生成鹽酸(或硫酸)鹽;
- They spend the winter(s) in a warmer climate. 他們在氣候較暖的地方過(guò)冬。
- Most plural nouns in English end in "s". 英語(yǔ)的復數名詞多以“s”結尾。
- Keywords polymethylene polyphenyl polyamine;primary amine;diazo reaction;analytical method; 多苯基多次甲基多胺;伯胺基;重氮化反應;測定方法;
- The sweater had shrunk after repeated washing(s). 這件套頭毛衣洗過(guò)多次已縮水了。
- Some old folk(s) have peculiar tastes. 有些老人有特殊的愛(ài)好。
- Answer the following question(s). 回答下列問(wèn)題。
- Most plural nouns in English end in s'. 英語(yǔ)的復數名詞多以s結尾。
- The drug affects one's power(s) of concentration. 這種藥影響人精神不能集中。
- Here are the designs. Which one(s) do you prefer? 這就是那些圖樣.;你喜歡哪一個(gè)[些]?
- Which journal(s) do you subscribe to? 你訂閱哪一種雜志?
- The novel had an enormous vogue in the 1930's. 這本小說(shuō)在三十年代曾廣為流傳。
- Schur ;revised by Eugene Ehrlich. 題名其余部分: Norman W.
- He earned four A's in the final examinations. 他期末考試四門(mén)功課得優(yōu)。
- It's a challenge," Ehrlich said. 當然在寶寶發(fā)燒的時(shí)候,我還在玟玟那兒,我沒(méi)有回來(lái)是有錯的,你該怎么處置我都接受。
- The Beatles were the pop idols of the 60's. 披頭士樂(lè )隊是六十年代人們崇拜的偶像。