this paper illustrates the reaction of larch bark tannin extracts with sulfite and sodium hydroxide and the tests of its solution viscosity, mw-distribution and thin-layer chromatography.

  • 摘要通过对落叶松栲胶进行亚硫酸盐和氢氧化钠的改性,则定其溶液黏度,用不同溶剂进行分级和薄层色谱。

  • provided by jukuu 2026-07-14 04:28:03

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