本法使用硫代氨基脲-抗坏血酸作为还原剂，将砷还原同时将铜沉淀分离。

Using a mixed solution of thiosemicarbazide and ascorbic acid as reducing agent, arsenic is reduced and separated from precipitated copper.

youdao

本发明提供一种包含着色剂、EDTA、1，1，3，3-四甲基脲、二硫代氨基甲酸钠、异丙醇和硼砂的喷墨打印机墨水。

The present invention provides a kind ink for ink jet printer and containing coloring agent, EDTA, 1, 1, 3, 3-tetramethyl urea, sodium dithiaamino formate, isopropanol and borax.

youdao

本发明提供一种包含着色剂、EDTA、1，1，3，3-四甲基脲、二硫代氨基甲酸钠、异丙醇和硼砂的喷墨打印机墨水。

The present invention provides a kind ink for ink jet printer and containing coloring agent, EDTA, 1, 1, 3, 3-tetramethyl urea, sodium dithiaamino formate, isopropanol and borax.

youdao