In this paper, the new chelating resin (PSIM) with a polythioether backbone bearing imidazole group is first synthesized by the reaction between polychloromethylthiirane and imidazole.

通过聚环硫氯丙烷与咪唑进行高分子反应，成了以聚硫醚为主链、侧链带有咪唑基团的脂（简称PSIM）。

The conversion film is probably constituted of amorphous and pored alloying tannate chelate.

这转化膜很由有一定孔隙的非晶态金单宁酸膜层构成.

3, 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.

在洗衣粉中掺入剂，例如次氮基三乙酸酯（NTA）或者乙二胺四乙酸酯（EDTA），这些剂易于形成水溶性的金属物。