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  • 2018-12-02 17:02發(fā)布了問(wèn)答

    請(qǐng)問(wèn)什么是手性配體?
     
    512人看過(guò)
  • 2016-06-02 23:32發(fā)布了問(wèn)答

    不加試劑如何分離氯化鈉和鹽酸混合物
    不加試劑如何分離氯化鈉和鹽酸混合物
    647人看過(guò)
  • 2011-03-30 01:24發(fā)布了問(wèn)答

    幫忙翻譯下 十萬(wàn)火急!!!! 萬(wàn)分感謝!!!!!!!!!!
    thequalitysystemofthecompanyisinconformitywithISO9002.markingcomprehensiveuseofbiotechnology,finechemicaltechnology,thecompanyspecializesinmanufacturingandsellingC-4serie... the quality system of the company is in conformity with ISO 9002 . marking comprehensive use of biotechnology,fine chemical technology,the company specializes in manufacturing and selling C-4 series organic acids and chiral products. these products are widely used in many field such as food, pharmaceutical and chemical industries, and are well accepted by the domestic and overseas market. the main products are L-Malic acid ,DL- Malic acid,L(+)-lartaric acid, fumaric acid, Maleic acid and other organic acids. annual productivity amounts to 20,000 tones. the company has become aninportant manufacturer of C-4 series organic acids in the world. all the products of the company have respectively met the different international advanced standards such as food chemicals codex U.S. pharmacopoeia , british pharmacopoeia ,and the products have obtained Star-K Kosher Certificate. Above 70% of the company 's products are exported to Japan,Europe,Australia,the United States and Middle East, and they are renown and well recognized in the international markets. the company will devote itself to research and development of enzyme technology and organic electrochemistry. it will continuously introduce new food additives, chiral pharmaceutical intermediates,chiral auxiliaries and chiral drugs. depending on superior quality , good service and high reputation , the company is willing to establish a long -term mutually beneficial business partnership with overseas customers and continue to contribute to the happy life of humans. 展開(kāi)
    554人看過(guò)