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jianghejian鐵蟲 (小有名氣)
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[求助]
酸性or堿性瀝青質(zhì)的提取
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如題: 各位大俠,有米有誰做過有關(guān)膠質(zhì)瀝青質(zhì)的分離,并且是可以獲得酸性堿性的膠質(zhì)瀝青質(zhì)?謝謝 |
銀蟲 (小有名氣)
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不知道怎么貼附件 參考 1. J Chromatogr A. 2004 Feb 20;1027(1-2):171-7. Ion-exchange resins in the isolation of nitrogen compounds from petroleum residues. Conceição Oliveira E, Vaz de Campos MC, Sant'Ana Lopes A, Rodrigues Vale MG, Bastos Caramão E. 2. J Chromatogr A. 2004 Feb 20;1027(1-2):171-7. Ion-exchange resins in the isolation of nitrogen compounds from petroleum residues. Conceição Oliveira E, Vaz de Campos MC, Sant'Ana Lopes A, Rodrigues Vale MG, Bastos Caramão E. |
鐵蟲 (初入文壇)

鐵蟲 (小有名氣)
銅蟲 (小有名氣)
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