Acidic, basic, polar, and nonpolar residues, and special properties of specific amino acids.
2
请依据氨基酸支链的性质来分类：疏水性、亲水性、极性与非极性。
Please group amino acids according to the nature of their side chains: hydrophobic, hydrophilic, polar and nonpolar.
3
对用非极性固定相分离不同极性的化合物时色谱峰的峰形与保留值的关系进行了研究。
The relationship between the chromatographic peak form of the compounds with different polarity and the retain value has been studied by using non-polar stationary phase.
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