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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. 我公司是一家專業化、研型化工生產企業,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)、質譜(MS)、HPLC、薄層色譜(TLC)、元素分析、可見吸收光譜、重氮反應法等手段對產物進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. 有鹼性,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冬。
- Most plural nouns in English end in "s". 英語的複數名詞多以「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). 這件套頭毛衣洗過多次已縮水了。
- Some old folk(s) have peculiar tastes. 有些老人有特殊的愛好。
- Answer the following question(s). 回答下列問題。
- Most plural nouns in English end in s'. 英語的複數名詞多以s結尾。
- The drug affects one's power(s) of concentration. 這種葯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[些]?
- Which journal(s) do you subscribe to? 你訂閱哪一種雜誌?
- The novel had an enormous vogue in the 1930's. 這本小說在三十年代曾廣為流傳。
- Schur ;revised by Eugene Ehrlich. 題名其餘部分: Norman W.
- He earned four A's in the final examinations. 他期末考試四門功課得優。
- It's a challenge," Ehrlich said. 當然在寶寶發燒的時候,我還在玟玟那兒,我沒有回來是有錯的,你該怎麼處置我都接受。
- The Beatles were the pop idols of the 60's. 披頭士樂隊是六十年代人們崇拜的偶像。