The mechanism of the Cu 2+ enriching process by chitosan as a flocculant chelating compound has been studied through morphological observation by AFM in noncontact mode.
用原子力显微镜对自然风干后的壳聚糖絮凝剂富集铜离子后的样品在非接触模式下进行观察。
A chelating agent which forms an easily water-soluble metal chelated compound such as nitrilotriacetate (NTA) or ethylene diamine tetraacetate (EDTA) is incorporated in a detergent composition.
在洗衣粉中掺入螯合剂，例如次氮基三乙酸酯(NTA)或者是乙二胺四乙酸酯(EDTA)，这些螯合剂易于形成水溶性的金属螯合物。
Methods Antioxidant, metal ion chelating agent and the mixture of the two were added to the lotion respectively, and the color of compound salicylic acid lotion was observed.
方法以外观色泽为指标，考察单独加入抗氧剂或金属离子络合剂及其联合应用对制剂外观质量的影响。结果合适的稳定剂大幅度延缓了复方水杨酸洗剂的氧化变色速度。
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