References
- Narin , I. , Soylak , M. and Elci , L. 2000 . Separation and enrichment of chromium, copper, nickel and lead in surface seawater samples on a column filled with Amberlite XAD‐2000 . Anal. Lett. , 34 : 1935 – 1947 .
- Divrikli , U. and Elci , L. 2002 . Determination of trace metals in water and sediment samples by flame atomic absorption spectrometric after coprecipitation with cerium(IV) hydroxide . Anal. Chim. Acta , 452 : 231 – 235 .
- Reddy , B. K. , Kumar , J. R. , Reddy , K. J. , Sarma , L. S. and Reddy , A. 2003 . A sensitive extractive spectrophotometric determination of copper(II) in pharmaceutical and environmental samples using benzildithiosemicarbazone . Anal. Sci. , 19 : 423 – 428 .
- Narin , I. and Soylak , M. 2003 . Enrichment and determination of nickel(II), cadmium(II), copper(II), cobalt(II), and lead(II) ions in natural waters, table salts, tea and urine samples as pyrrolydine dithiocarbomate chelate by membrane filtration‐flame atomic absorption spectrometry combination . Anal. Chim. Acta , 493 : 205
- Kulichenko , S. A. , Doroschuk , V. O. and Lelyushok , S. O. 2003 . The cloud point extraction of copper with monocarboxylic acids into non‐ionic surfactant phase . Talanta , 59 : 767 – 773 .
- Saracoglu , S. , Soylak , M. and Elci , L. 2003 . Determination of trace amounts of copper in natural water samples by flame atomic absorption spectrometric coupled with flow injection on‐line solid phase extraction on Ambersorb 563 adsorption resins . Chem. Anal. , 48 : 77 – 82 .
- Kim , Y. S. , In , G. , Han , C. W. and Choi , J. M. 2005 . Studies on synthesis and application of XAD‐4‐salen chelate resin for separation and determination of trace elements by solid phase extraction . Microchem. J. , 80 : 151 – 157 .
- Castro , M. T. P. and Baccan , N. 2005 . Application of factorial design in optimization of preconcentration procedure for copper determination in soft drink by flame atomic absorption spectrometry . Talanta , 65 : 1264 – 1269 .
- Abou‐El‐Sherbini , K. S. , Kenavy , I. M. M. , Hamed , M. A. , Issa , R. M. and Elmorsi , R. 2002 . Separation and preconcentration in a batch mode of Cd(II), Cr(III), Cu(II), Mn(II, III) and Pb(II) by solid‐phase extraction by using of silica modified with N‐propylsalicylaldimine . Talanta , 58 : 289 – 300 .
- Cekic , S. D. , Filik , H. and Apak , R. 2004 . Use of an 4 o‐aminobenzoic acid‐functionalized XAD‐4 copolymer resin for the separation and preconcentrration of heavy metals (II) ions . Anal. Chim. Acta , 505 : 15 – 24 .
- Guo , Y. , Din , B. , Liu , Y. , Chang , Y. , Meng , S. and Liu , J. 2004 . Preconcentration and determination of trace elements with 2‐aminoacetylthiophenol functionalized Amberlite XAD‐2 be inductively coupled plasma‐atomic emission spectrometry . Talanta , 62 : 209 – 215 .
- Soylak , M. , Elci , L. and Doga , M. 2000 . A sorbent extraction procedure for the preconcentration of gold, silver and palladium on activated carbon column . Anal. Lett. , 33 : 513 – 525 .
- Xie , X. F. , Zhou , F. L. and Yang , X. B. 2001 . Study on adsorption of gold and germanium ions by green tea leaves . Fenxi Shianshi , 20 : 41 – 44 .
- Pourreza , N. and Behpour , M. 2003 . Column preconcentration of mercury as HgI4 2− using methyltrioctylammnium chloride‐naphthalene adsorbent with subsequent anoding stripping‐differential pulse voltammetric determination . Anal. Chim. Acta , 481 : 23 – 28 .
- Vogel , A. 1975 . A Textbook of Quantitative Inorganic Analysis , 3rd ed. London : Longman .
- Karadakov , B. , Kantcheva , D. and Nenova , P. 1968 . Spectrophotometric study of the reaction of iron(III) with methylthymol blue . Talanta , 15 : 525 – 534 .
- Pourreza , N. and Zavvar Mousavi , H. 2004 . Solid phase preconcentration of iron as methyl thymol blue complex on naphthalene‐tetraoctyl ammonium bromide adsorbent with subsequent flame atomic determination . Talanta , 64 : 264 – 267 .