...取；化学提取；生物提取；马尾藻 [gap=952]Key words seaweed active substances；physical extraction；chemical extraction；biological extraction；Sargassum ...
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使用逐级化学提取方法对岩石中氟元素的化学活动性进行了研究。
Sequential extraction experiments were used to study the chemical mobility of fluorine in rocks.
本文综述了从植物中提取果胶的各种方法，包括化学提取法和生物提取法。
In this paper, the methods of pectin extraction and purification from plant tissues, including chemical and biological methods, are introduced.
目前，评价土壤中金属植物有效性的方法主要有：化学提取法、植物吸收试验、微生物和酶活性试验及同位素法。
The main methods now to evaluate Pb availability in soil are chemical extraction, plant adsorption, microbial and enzyme activation and isotopes tests.
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