Nanotechnology can help alleviate these problems by offering new techniques and equipment for conducting water research as well as new purification methods.

纳米技术可以提供进行水研究的新技术和新设备以及新的净水方法，从而帮助解决这个问题。

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In this paper, studies on pharmacognosy, chemical constituents, pharmacology, purification methods and USES of Chinese medicine Luohanguo, a special local product of Guangxi, are reviewed.

综述了广西特产药用植物罗汉果的生药学、化学成分、药理学、提取分离方法和应用研究，为深入研究开发利用罗汉果资源提供参考。

youdao

Based on the study of vanillin characteristics, new purification methods are presented.

在分析香兰素性质的基础上提出了新的提纯方法。

youdao

The choice of purification methods and the source of the drug will determine the nature and amount of contaminants in the final medicine. (Nothing is ever 100% pure.) Moreover, protein folding, various kinds of enzymatic modifications and impurities inevitably introduce variation, sometimes with unexpected results.

FORBES: Commentary

As the viruses change color once they've reached impervious bacterial strains, in this case variants on Staphylococcus, they can reveal superbugs within 10 to 12 minutes -- a potentially lifesaving interval when current purification-driven methods can take hours.

ENGADGET