Application of naphthalene-captopril column for pre-concentration and determination of trace amount of copper(II) in waste water samples by flame atomic absorption spectrometry

被引：0
作者：
Mousavi, H. Zavvar [1 ]
机构：
[1] Semnan Univ, Coll Sci, Dept Chem, Semnan, Iran
来源：
ASIAN JOURNAL OF CHEMISTRY | 2007年 / 19卷 / 05期
关键词：
pre-concentration; copper; captopril; flame atomic absorption spectrometry;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A sensitive and selective pre-concentration method for the determination of copper(II) Py flame atomic absorption spectrometry has been developed. Copper forms a complex with captopril. This complex is retained by naphthalene- captopril adsorbent in a column with a height of ca. 2.5 cm. The adsorbed metal complex is then eluted from the column with nitric acid and its copper content is determined by flame atomic absorption spectrometry. The effect of different variables such as pH, reagent concentration, flow rate and interfering ions on the recovery of the analyte was investigated. The calibration graph was linear in the range 75-350 mu g L-1 of copper in the initial solution. Detection limits (3 sigma, n 10) of 23 mu g L-1 and relative standard deviation 2.4 and 1.6 % at 200 and 300 mu g L-1 level were obtained. This procedure was successfully applied to the determination of copper in waste water samples. Analytical recoveries of copper added to samples were 98-103%.
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页码：3519 / 3524
页数：6
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共 14 条
[1]   1,10-phenanthroline as a complexing agent for on-line sorbent extraction preconcentration for flow injection-flame atomic absorption spectrometry [J].
Ali, A ;
Yin, XF ;
Shen, H ;
Ye, YX ;
Gu, X .
ANALYTICA CHIMICA ACTA, 1999, 392 (2-3) :283-289
[2]   Application of silica gel organofunctionalized with 3(1-imidazolyl)propyl in an on-line preconcentration system for the determination of copper by FAAS [J].
da Silva, EL ;
Martins, AO ;
Valentini, A ;
de Fávere, VT ;
Carasek, E .
TALANTA, 2004, 64 (01) :181-189
[3]   Use of 1,3-diaminepropane-3-propyl grafted onto a silica gel as a sorbent for flow-injection spectrophotometric determination of copper(II) in digests of biological materials and natural waters [J].
de Moraes, SVM ;
Brasil, JL ;
Milcharek, CD ;
Martins, LC ;
Laranjo, MT ;
Gallas, MR ;
Benvenutti, EV ;
Lima, EC .
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2005, 62 (1-3) :398-406
[4]   A novel spectrophotometric determination of trace copper based on charge transfer complex [J].
Di, JW ;
Wu, Y ;
Ma, Y .
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2005, 61 (05) :937-941
[5]   An automated system for liquid-liquid extraction based on a new micro-batch extraction chamber with on-line detection - Preconcentration and determination of copper(II) [J].
Diniz, MCT ;
Fatibello, O ;
Rohwedder, JJR .
ANALYTICA CHIMICA ACTA, 2004, 525 (02) :281-287
[6]   Copper determination in natural water samples by using FAAS after preconcentration onto amberlite XAD-2 loaded with calmagite [J].
Ferreira, SLC ;
Ferreira, JR ;
Dantas, AF ;
Lemos, VA ;
Araújo, NML ;
Costa, ACS .
TALANTA, 2000, 50 (06) :1253-1259
[7]   Amberlite XAD-2 functionalized with 2-aminothiophenol as a new sorbent for on-line preconcentration of cadmium and copper [J].
Lemos, VA ;
Baliza, PX .
TALANTA, 2005, 67 (03) :564-570
[8]   Artificial neural networks study of the catalytic reduction of resazurin: stopped-flow injection kinetic-spectrophotometric determination of Cu(II) and Ni(II) [J].
Magni, DM ;
Olivieri, AC ;
Bonivardi, AL .
ANALYTICA CHIMICA ACTA, 2005, 528 (02) :275-284
[9]   Extraction and spectrophotometric determination of copper(II) with S,S′-bis(2-aminophenyl)oxalate [J].
Nohut, S ;
Karaböcek, S ;
Güner, S ;
Gök, Y .
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS, 1999, 20 (1-2) :309-314
[10]   Simultaneous determination of iron, cobalt, nickel and copper by UV-visible spectrophotometry with multivariate calibration [J].
Rodriguez, AMG ;
de Torres, AG ;
Pavon, JMC ;
Ojeda, CB .
TALANTA, 1998, 47 (02) :463-470
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