chelate

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，了以聚硫醚为主链、侧链带有咪唑基团树脂（简称PSIM）。

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

这种转化膜很可能是由有一定孔晶态金单宁酸膜层构.

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，如次氮基三乙酸酯（NTA）或者是乙二胺四乙酸酯（EDTA），这些剂易于形水溶性金属物。