Solid phase extraction using nanoporous MCM-41 modified with 3,4-dihydroxybenzaldehyde for simultaneous preconcentration and removal of gold(III), palladium(II), copper(II) and silver(I)

Mohammad Behbahani; Fatemeh Najafi; Mostafa M. Amini

首页> 外文期刊>Journal of industrial and engineering chemistry >Solid phase extraction using nanoporous MCM-41 modified with 3,4-dihydroxybenzaldehyde for simultaneous preconcentration and removal of gold(III), palladium(II), copper(II) and silver(I)

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Solid phase extraction using nanoporous MCM-41 modified with 3,4-dihydroxybenzaldehyde for simultaneous preconcentration and removal of gold(III), palladium(II), copper(II) and silver(I)

机译：使用3,4-二羟基苯甲醛修饰的纳米多孔MCM-41进行固相萃取，以同时预浓缩和去除金（III），钯（II），铜（II）和银（I）

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In this paper, functionalized MCM-41 nanoporous silica with 3,4-dihydroxybenzaldehyde was applied for trace determination of copper, silver, gold and palladium in real samples. The content of solutions containing the mentioned metals was determined by flame atomic absorption spectrometry (FAAS), and the limit of detection was 0.09, 0.03, 0.5 and 0.08 ng mL~(-1) for gold, copper, silver, and palladium, respectively. The recoveries and precisions for mentioned ions were >97.0% and <3%, respectively. The adsorption capacity of the modified MCM-41 was 290 mg g~(-1) for gold, 130 mgg~(-1) for copper, 160 mg g~(-1) for silver and 155 mg g~(-1) for palladium, respectively.

机译：本文将具有3,4-二羟基苯甲醛的功能化MCM-41纳米多孔二氧化硅用于痕量样品中痕量铜，银，金和钯的测定。通过火焰原子吸收光谱法（FAAS）测定含有上述金属的溶液的含量，金，铜，银和钯的检出限分别为0.09、0.03、0.5和0.08 ng mL〜（-1）。。所述离子的回收率和精密度分别为> 97.0％和<3％。改性后的MCM-41对金的吸附量为290 mg g〜（-1），对铜为130 mgg〜（-1），对银160 mg g〜（-1），155 mg g〜（-1）。分别用于钯。

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《Journal of industrial and engineering chemistry》 |2014年第4期|共8页
作者
Mohammad Behbahani; Fatemeh Najafi; Mostafa M. Amini;
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正文语种 eng
中图分类化学工业;
关键词
Gold; Palladium; Silver; Copper; 3; 4-Dihydroxybenzaldehyde nanoporous; silica;

机译：金;钯;银;铜;3;4-二羟基苯甲醛纳米多孔;二氧化硅;

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Solid phase extraction using nanoporous MCM-41 modified with 3,4-dihydroxybenzaldehyde for simultaneous preconcentration and removal of gold(III), palladium(II), copper(II) and silver(I)

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