摘要
研究了腐殖酸酚醛树脂对水中痕量的铜、镉、银和镍的富集性能。结果表明,当pH大于6.0时,铜、镉、银和镍均可被腐殖酸酚醛树脂定量的吸附,q分别可达78.50、19.60、49.80和30.00mg/g。吸附的铜、镉、银和镍均可以用1mol/L的HNO3溶液完全解脱回收。实现对水中痕量的铜、镉、银和镍的富集。该法已用于自来水和蒸馏水中铜、镉、银和镍同时富集测定。
Adsorption enrichment property of a humic acid resin for heavy metal of copper, cadmium, silver and nickel ions in water was studied. The results showed that the humic acid resin could adsorb cop- per, cadmium, silver and nickel ions quantitatively with adsorption capacity reaching to 78.50, 19.60, 49.80 and 30.00 mg/g respectively when pH was above 6.0. The adsorbed copper, cadmium, silver and nickel ions could be completely eluted and recovered using 1.0 mol/L HNO3 solution. Thus trace cop- per, cadmium, silver and nickel ions in water could be determined by atomic absorption spectrometry af- ter the humic acid resin enrichment. A method for determining trace heavy metals of copper, cadmium, silver and nickel with humic acid resin enrichment - atomic absorption spectrometry was proposed. The method has been applied to the determination of trace copper, cadmium, silver and nickel ions in tap wa- ter and distilled water with satisfactory results.
出处
《电镀与精饰》
CAS
北大核心
2010年第6期11-14,共4页
Plating & Finishing
关键词
腐殖酸树脂
富集
原子吸收分光光度法
痕量
重金属
水
humic acid resin
enrichment
atomic absorption spectrometry
trace
heavy metal
water
