Solid Phase Extraction Technique in Analytical Chemistry A New Preconcentration and Separation Method for The Determination of Trace Heavy Metal Ions in Natural Samples

Mehmet Doğan

Solid Phase Extraction Technique in Analytical Chemistry A New Preconcentration and Separation Method for The Determination of Trace Heavy Metal Ions in Natural Samples

Abstract

Solid phase extraction technique is found a wide application in analytical chemistry as a preconcentration andseparation of trace metal ions in complex matrixes in recent years. The method is efficiently, very simple and needssimple equipments, not more chemicals. Their enrichment factor is very high by the determination of heavy metalimpurities in water. Therefore it is a useful and cheap technique especially for the laboratories; they have not enoughgood sensitive analytical instruments like GFAAS, ICP- MS or TXRF

Keywords

Solid phase extraction technique,trace heavy metal ions,Preconcentration,separation,enrichment

References

1. P.L. Malvankar, V.M. Shinde, Ion-pair extraction and determination of copper(II) and zinc(II) in environmental and pharmaceutical samples Analyst, 1991, 116, 1081-1084
2. K. Kongola,MD. Mwema, AN Banza, E. Gock, Cobalt and zinc recovery from copper sulphate solution by solvent extraction. Minerals Eng, 16, 1371- (2003).
3. M. Chikuma, M. Nakayama, T.Itoh, H. Tanaka, K. Itoh, Chelatic-forming resins prepared by modification of ion-exchange resins. Talanta 27, 807-817 (1980).
4. K.S. Lee, W. lee, D.W.Lee, Selective separation of metal ions by a chelating agentloaded anion exchanger. Anal. Chem. 50, 255- 258 (1978).
5. S. Kayaga, Y. Araki, N. Hirai, K. Hasegawa, Coprecipitation with yttrium phosphate as a separation technique for iron (III), lead and bismuth from cobalt, nickel and copper matrices. Talanta 67, 90- (2005).
6. Ü. Divrikli, L. Elci, Determination of same trace metals in water and sediment sampling by flame atomic absorption spectrometry after coprecipitation with cerium (IV) hydroxide. Anal. Chim. Acta 452, 231-235 (2002).
7. M. Soylak, Ü. Divrikli, L. Elçi, M. Doğan, Preconcentration of Cr(III), Co(II), Cu(II), Fe(III) and Pb(II) as calmagite chelates on cellulose nitrate membrane filter prior to their flame atomic absorption spectrometric determinations, Talanta 56, 565-570 (2002).
8. M. Kan, H. Sakamoto, T. Nasu, M. Taga, Fluorophotometric determination of phosphate after collection on a membrane filter as ion pair of molybdophosphate with rhodamine 6G Anal. Sci, 7, 913-915 (1991).

9. M. Doğan, L. Elçi, Ein beitrag zur abtrennung und anreicherung von spurenelementen durch sorption ihrer komplexe an aktivkohle Spectrochimica. Acta, 39B,1189-1194 (1984).
10. . Güçer, M. Yaman, Determination of vanadium in vegetable matter by flame atomic absorption spectrometry J. Anal. Atom Spect. 7, 179-182 (1992).
11. R. Van Grieken.Preconcentration methods for the analysis of water by X-ray spectrometric techniques. Anal. Chim. Acta 143, 3-6 (1982).
12. M. Soylak, L. Elçi, M. Doğan, Determination of trace amouns of cobalt in natural water samples as 4-(2-thiazolyazo) recorcinol complex after adsorptive preconcentration, Anal. Lett 30, 623-631 (1997).
13. X.G.Yang, E. Jackwerth, Untersuchungen zur Adsorptiven Anreicherung von Elementspuren in Adsorberharzen, Fresenius Z. Anal. Chem. 987, 331,179 185.(1987)
14. M. Soylak, L. Elci, M. Dogan, Spectrophotometric determination of trace amounts of tungsten in geological samples after preconcentration on Amberlite XAD1180,Talanta, 42, 1513-1517 (1995).
15. A.R. Türker and A. Tunçeli, Preconcentration of copper, nickel and zinc with Amberlite XAD16 resin, Fresenius J. Anal. Chem. 345 (1993), p. 755
16. M. Özcan, S. Akman, C. Erbil, S. Saraç, Determination of copper chromium, manganese and zinc by graphite furnace atomic absorption spectrometry after separation on polyacrilamide modified with nitrilo acetic acid. Fresenius J. Anal. Chem. 1996, 355, 665-666.
17. F. Armagan, M. Soylak, L. Elçi, M. Doğan, Solid phase extraction of some metal ions on Diaion hp-20 resin prior to flame atomic absorption spectrometric analysis, Journal of Trace and Microprobe Techniques 20(1), 15-20 (2002).
18. S. Döker, S. Malci, M. Doğan, B. Salih, New poly (N-hydroxymethyl) methacrylamide-1- allyl-2-thiourea) hydrogels prepared by radiation-induced polymerisation: selective adsorption, recovery and pre-concentration of Pt(II) and Pd(II), Analytıca Chımıca Acta 553 (1-2): 73-82 (2005).
19. A.E. Boyukbayram, M. Volkan, Cloud point preconcentration of germanium and determination by hydride generation atomic absorption spectrometry. Spectrochim Acta.55B, 1071-1076 (2000).
20. H. Tani, T. Kamidate, H. Watanabe, Micellemediated extraction. J. Choromatogr., 780A, :229-234 (1997).
21. Y. Surme, I. Narin, M. Soylak, H. Yuruk, M. Doğan, Cloud point extraction procedure for flame atomic absorption spectrometric determination of lead(II) in sediment and water samples. Microchim. Acta 157, 193-199 (2007)
22. E. Jackwerth, J. Lohmar und G. Wittler, Über die Verwendung von Aktivkohle zur Anreicherung von Spurenelementen mit nachfolgender Bestimmung durch Atomabsorptions-Spektrometrie, Fresenius' J of Anal Chem. 266,1-8 (1973).
23. L. Elçi, M. Soylak, M. Doğan, Preconcentration of trace metals in river waters by the application of chelate adsorption on Amberlite XAD-4., Fresenius J. Anal. Chem., 342, 175- 178 (1992).
24. M. Soylak, L. Elçi, M. Doğan, Determination of some trace metals in dialysis solutions by aas after preconcentration, Analytical Letters, 26,1197-2007 (1993).
25. IUPAC, Nomenclature, Symbols, Units and their usages in spectrochemical analysis, Pure Appl.Chem 45, 105-111 (1976).
26. L. Liska, Fifty years of solid phase extraction in water analysis- historical development and overview, J of Chromatography A 885, 3-11 (2000).
27. C.E. Poole. Solid-phase extraction. Encyclopedia of separation science,3 Academic Press 2000 p.1405.
28. L. Elçi, S. Çavuş, M. Doğan M., Adsorption Behavior of Some Organic Substances and Chelates on Amberlite XAD-4, -7 and -8 Resins, Inter. J. Chem. 4, 1-6 (1993).
29. L. Elçi, S. Işıldar, M. Doğan, Spectrophotometric determination of gold and palladium in anode slimes after separation with Amberlite XAD-7 resin, Anal. Chim. Acta, 293, 319-324 (1994).
30. M. Soylak, L. Elçi, M. Doğan, Spectrophotometric Determination of Trace Amounts of Tungsten in Geological Samples After Preconcentration on Amberlite XAD1180,Talanta, 42, 1513-1517 (1995)
31. M. Soylak, L. Elçi, M. Doğan, Preconcentration of trace amounts of tungsten on Amberlite XAD-7 for its spectrophotometric determination in hot spring water, Fresenius J. of Anal. Chem. 351, 308-310 (1995)
32. M. Soylak, L. Elçi, M. Doğan, Determination of some trace metal impurities in refined and unrefined salts after preconcentration onto activated carbon, Fresenius Envir Bull. 5, 148- 155 (1996).
33. M. Soylak, M. Doğan, Column preconcentration of trace amounts of copper on activated carbon from natural water samples. Anal Lett, 29, 635-643 (1996).
34. M. Soylak, M. Doğan, Chemical analysis of mineral spring waters from the KayseriYozgat District, Türkiye, Fresenius Envir. Bull. 5,13-20 (1996).
35. M. Soylak, M. Doğan, Separation and enrichment of zinc, iron, copper, cadmium, cobalt and nickel from urine with Amberlite XAD-16 resin, Trace Elem. Electroyt. 13, 130- 132 (1996).
36. M. Soylak, M. Doğan, Column preconcentration of trace amounts of copper on activated carbon from natural water samples, Anal. Lett. 29, 635-643 (1996).
37. M. Soylak, İ. Narin, M. Doğan, Trace Enrichment and Atomic Absorption Spectrometric Determination of Lead, Copper, Cadmium and Nickel in Drinking Water Samples by use of an Activated Carbon Column, Anal. Lett., 30, 2801-2810 (1997).
38. M. Soylak, L. Elçi, M. Doğan, Determination of Trace Amouns of Cobalt in Natural Water Samples as 4-(2-thiazolyazo) Recorcinol Complex after Adsorptive Preconcentration, Anal. Lett 30, 623-631 (1997).
39. M. Soylak, L. Elçi, M. Doğan, Determination of Molybdenum in Water and Geological Samples From Sorgun-Yozgat Region After Separation and Preconcentration: Comparative Results, Kuwait J. Sci. Eng 24, 87-92 (1997).
40. M. Soylak, Ü. Divrikli, M. Doğan, Column Separation and Enrichment of Trace Amounts of Cu, Ni and Fe on Amberlite XAD-16 Resin in Industrial Fertilizers, J. Trace and Microprobe Tech., 15, 197-204 (1997).
41. İ. Narin, M. Soylak, M. Doğan, Traffic Pollution in Niğde-Türkiye: Investigation of Trace Element Contents of Soil Samples, Fresenius Envir. Bull. 6, 749-752 (1997).
42. R. Saraymen, M. Soylak, L. Elçi, M. Doğan, Blood Selenium Level of Adults Living in the Province of Kayseri-Türkiye, Fresenius Envir. Bull. 6, 694-698(1997).
43. M. Doğan, M. Soylak, L. Elçi, Determination of Some Trace Metals in Natural Waters, Dialysis Solution and Various Salt Matrices by Atomic Absorption Spectrometry after Preconcentration onto Activated Carbon and Amberlite XAD-Resins, 4.Int.Conf. Chemistry and Its Role in Development Mansoura, Mansoura University Plenary and Invited Lectures Book, 1, 63-69 (1997).
44. M. Soylak, M. Doğan, O. Türkoğlu Trace Metal Pollution in Sediments of Sarmısaklı River Region, Kayseri-Türkiye, Int. J Chem. 7, 49- 53 (1996).
45. İ. Narin, M. Soylak, M. Doğan, Rubidium and Strontium Levels of Natural Water Samples from the Middle Anotolia Region of Türkiye, Kuwait J Sci. Eng., 25, 217-222 (1998).
46. M. Soylak, R. Saraymen, İ. Narin, M. Doğan, Serum Zinc Levels of a Poor Economic and Social Region near an Industrial Zone, Trace Elements & Electroly., 15, 142-144 (1998).
47. M. Soylak, Ü. Divrikli, L. Elçi, M. Doğan, Column Chromatographic Preconcentration and Enrichment of Copper, Nickel and Iron in Ammonium Salts by Graphite Furnace Atomic Absorption Spectrometry, Kuwait J. Sci. Eng., 25, 389-396 (1998).
48. M. Soylak, İ. Narin, L. Elçi, M. Doğan, Investigation of Some Trace Element Pollution in Karasu, Sarmısaklı Çayı and Kızılırmak Rivers, Kayseri-Turkey, Fresenius Envir. Bull., 8, 14-17 (1999).
49. M. Soylak, L. Elçi, M. Doğan, Flame Atomic Absorption Spectrometric Determination of Cadmium, Cobalt, Copper, Lead and Nickel in Chemical Grade Potassium Salts after an Enrichment and Separation Procedure, J. Trace and Microprobe Tech., 17, 149-156 (1999).
50. M. Soylak, İ. Narin, L. Elçi, M. Doğan, Atomic Absorption Spectrometric Determination of Copper, Cadmium, Lead and Nickel in Urine Samples After Enrichment and Separation Procedure on an Activated Carbon Column, Trace Elements Electroly., 16, 131-134 (1999).
51. M. Soylak, L. Elçi, M. Doğan, A Sorbent Extraction Procedure for the Preconcentration of Gold, Silver and Palladium on an Activated Carbon Column, Anal. Lett., 33, 513-525 (2000).
52. M. Soylak, İ. Narin, L. Elçi, M. Doğan, Lead Concentrations of Dust Samples from Nigde City-Turkey, Fresenius Environmental Bulletin , 9, 36-39 (2000).
53. L. Elçi, M. Soylak, A. Uzun, E. Büyükpatır, M. Doğan, Determination of Trace Impurities in Some Nickel Compounds by Flame Atomic Absorption Spectrometry after Solid Phase Extraction Using Amberlite XAD-16 Resin, Fresenius Journal of Analytical Chemistry, 368, 358-361 (2000).
54. İ. Narin, M. Soylak, L. Elçi, M. Doğan Determination of Some Trace Metal Ions in Natural Water Samples after Preconcentration of Pyrocatechol Violet Complexes on an Activated Carbon Column by AAS, Talanta, 52, 1041-1046 (2000).
55. M. Soylak, L. Elçi, İ. Narin, M. Doğan, Application of Solid Phase Extraction for the Preconcentration and Separation of Trace Amounts of Cobalt from Urine, Trace Elements and Electrolytes, 18, 26-29 (2001).
56. M. Soylak, L. Elçi, M. Doğan, Solid Phase Extraction of Trace Metal Ions with Amberlite XAD Resins Prior to Atomic Absorption Spectrometric Analysis, J. Trace and Microprobe Tech., 19, 329-344 (2001)
57. Ü. Divrikli, M. Soylak, L. Elçi, S. Kurtoğlu, M. Doğan, Urine Iodine Contents of Children Living in Kayseri-Turkey, Fresenius Environmental Bulletin, 9, 809-812 (2000).
58. M. Soylak, L. Elçi, İ. Narin, M. Doğan, Separation and Preconcentration of Gold, Silver and Palladium from Some Aluminum and Manganese Salts on an Activated Carbon Column, Asian Journal of Chemistry, 13, 699- 703 (2001).
59. İ. Narin, M. Soylak, L. Elçi, M. Doğan, Chromatographic Separation and Enrichment of Chromium, Copper, Nickel and Lead in Surface Seawater Samples on a Column Filled with Amberlite XAD-2000, Analytical Letters, 34, 1935-1947 (2001).
60. M. Soylak, F. Armağan, L. Elçi, M. Doğan, A New Preconcentration and Separation Method for Determinations of Some Trace Metal Ions on a Diaion HP-20 Column, Annali Di Chimica, 91, 637-647 (2001).
61. M. Soylak İ. Narin, L. Elçi, M. Doğan, Determination of Copper, Cobalt, Cadmium, Lead, Nickel and Chromium by AAS in Bottled Mineral Waters from Turkey after Preconcentration, Asian Journal of Chemistry, 13, 1097-1100 (2001).
62. Ü. Divrikli, M. Soylak, L. Elçi, M. Doğan, Iodine Levels of Drinking Water Samples Collected from Kayseri-Turkey, Fresenius Environmental Bulletin, 10(6) 595-597 (2001).
63. M. Soylak, İ. Narin, L. Elçi, M. Doğan, Atomic Absorption Spectrometric Determination of Some Metal Ions in Table Salt Samples after Preconcentration on Activated Carbon, Kuwait Journal of Science and Engineering 28 (2) 361- 370 (2001).
64. M. Soylak, S. Saraçoğlu, L. Elçi, M. Doğan, Chemical Analysis of Drinking Water Samples from Yozgat-Turkey, International Journal of Environmental Analytical Chemistry 844, 225- 231(2002).
65. M. Soylak, L. Elçi, Y. Akkaya, M. Doğan, OnLine Preconcentration System for Lead Determination in Water and Sediment Samples by Flow Injection-Flame Atomic Absorption Spectrometry, Analytical Letters 35, 487-499 (2002).
66. M. Soylak, F. Aydın, S. Saraçoğlu, L. Elçi, M. Doğan, Chemical Analysis of Drinking Water Samples from Yozgat-Turkey, Polish Journal of Environmental Studies 11(2), 151-156 (2002).
67. S. Saracoğlu, M.Soylak, L. Elçi, M. Doğan, Determination of Cu, Fe, Ni, Co, Pb, Cd, Mn, and Cr in natural water samples after solid phase extraction on Chromosorb 102, Analytical Letters 35(15), 2603-2616 (2002)
68. İ. Narin, M. Soylak, K. Kayakırılmaz, L. Elçi, M. Doğan, Speciation of Cr(III) and Cr(VI) in Tannery Wastewater and Sediment Samples on Ambersorb 563 Resin, Analytical Letters 35 (8), 1437-1452 (2002).
69. M. Soylak, İ. Narin, L. Elçi, M. Doğan, Copper, Nickel, Lead and Chromium Determinations by Atomic Absorption Spectrometry in Urine after Enrichment/Separation on Amberlite XAD-2000, Fresenius Environmental Bulletin, 11 (3),132-136(2002).
70. A. Uzun, M. Soylak, L. Elci, Application of sorbent extraction for preconcentration separation of trace amounts of cadmium(II), silver(I), gold(II) and lead(II) from metallic zinc samples and their determinations by atomic absorption spectrometry,Asian Journal of Chemıstry 14 (3-4): 1277-1281 (2002).
71. M. Soylak, Ü. Divrikli, L. Elçi, M. Doğan, Preconcentration of Cr(III), Co(II), Cu(II), Fe(III) and Pb(II) as Calmagite Chelates on Cellulose Nitrate Membrane Filter Prior to their Flame Atomic Absorption Spectrometric Determinations, Talanta 56, 565-570 (2002).
72. S. Saracoğlu, M. Soylak, M. Doğan, L. Elçi, Speciation of Antimony Using Chromosorp. 102 Resin as a Retention Medium.Analytical Science 19 (2) 259-264 (2003).
73. İ. Narin, M. Soylak, K. Kayakırılmaz, L. Elçi, M. Doğan, Preparation of a Chelating Resin by Immobilizing 1-(2-Pyridylazo) 2-Naphtol on Amberlite XAD-16 and its Application of Solid Phase Extraction of Ni(II), Cd(II), Co(II), Cu(II), Pb(II) and Cr(III) in Natural Water Samples, Analytical Letters 36(3), 641-645 (2003).
74. S. Saraçoğlu, Ü. Divrikli, M. Soylak, L. Elçi, M. Doğan, Determination of Trace Elements of Some Textiles by Atomic Absorption Spectrometry, Journal of Trace and Microprobe Techniques 21(2), 389-396 (2003).
75. Ü. Divrikli, M. Soylak, L. Elçi, M. Doğan, Trace Heavy Metal Levels in Street Dust Samples from Yozgat-Turkey, J.Trace Microprobe Techn. 21(2), 351-361 (2003).
76. M. Soylak, A. Uzun-Karatepe, L. Elçi, M. Doğan Column Preconcentration /Separation and Atomic Absorption Spectrometric Determinations of Some Heavy Metals in Table Salt Samples on Amberlite XAD-1180, Turkish J. of Chemistry 27, 235-242 (2003).
77. M. Soylak, L. Elci, M. Doğan, The Uses of Activated Carbon Columns for Solid Phase Extraction Studies prior to determinations of Traces Heavy Metal Ions by Flame Atomic Absorption Spectrometry, Asian Journal of Chemistry, 15(3), 1735-1738 (2003).
78. M. Soylak, S. Saraçoğlu, L. Elci, M Doğan, Solid Phase Preconcentration and Separation of Coper, Nickel and Lead in Hemodialyse Concentrates and in Urine on Amberlite XAD 1180 Kuwait J. Sci. And Eng. 30(1) 95-109 (2003).
79. Ü. Divrikli, M. Soylak, L. Elçi, M. Doğan, The Investigation of Trace Heavy Metal Concentrations in the Street Dust Samples Collected from Kayseri-Turkey, Journal of Trace and Microprobe Techniques 21(4),713- 720 (2003).
80. İ. Narin, H. Çolak, O. Türkoğlu, M. Soylak, M. Doğan, Heavy Metals in Black Tea Samples Produced in Turkey Bull. Environ. Contam. Toxcol. 72, 844-849 (2004).
81. N. Özdemir, M. Soylak, L. Elçi, M. Doğan, Speciation Analysis of inorganic Sb (III) and Sb (V) ions by using mini column filled with Amberlite XAD-8 resin. Analytica Chimica Acta 505(1), 37-41 (2004).
82. M. Soylak, İ. Narin, Ü. Divrikli, S. Saraçoğlu, L. Elçi, M. Doğan, Preconcentration-Separation of Heavy Metal Ions in Environmental Samples by Membrane Filtration-Atomic Absorption Spectrometry Combination, Analytical Letters 37(4), 767-780 (2004).
83. S. Saraçoğlu, M. Tüzen, D. Mendil, M. Soylak, L. Elçi, M. Doğan, Heavy Metal Content of Hard Biscuits Produced in Turkey, Bull. Environ. Contam. Toxicol. 73,264-269 (2004).
84. M. Tüzen, M. Soylak, L. Elçi, M. Doğan, Column Solid Phase Extraction of Copper, Iron and Zinc Ions at Trace Levels in Environmental Samples on Amberlite XAD-7 for their Flame Atomic Absorption Spectrometric Determinations, Analytical Letters 37(6)1185- 1201 (2004).
85. İ. Narin, Y. Sürme, M. Soylak, M. Doğan, Speciation of Cr(III) and Cr(VI) in Environmental Samples by Solid Phase Extraction on Ambersorb 563 Resin, Journal of Hazardous Materials 136 (3): 579-584 (2006).
86. M. Soylak, H.Çolak, O. Türkoğlu. M. Dogan, Trace Metal Contents of Snack and Appetizers Consumed in Turkey, Bull. Environ. Contam. Toxicol., 76, 436-441 (2006).

Details

Primary Language

English

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Journal Section

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Authors

Mehmet Doğan This is me

Publication Date

August 1, 2008

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Published in Issue

Year 2008 Volume: 36 Number: 3

IZ

https://izlik.org/JA78XU46NM

Cite

RIS / Bibtex

APA

Doğan, M. (2008). Solid Phase Extraction Technique in Analytical Chemistry A New Preconcentration and Separation Method for The Determination of Trace Heavy Metal Ions in Natural Samples. Hacettepe Journal of Biology and Chemistry, 36(3), 235-246. https://izlik.org/JA78XU46NM

AMA

1.Doğan M. Solid Phase Extraction Technique in Analytical Chemistry A New Preconcentration and Separation Method for The Determination of Trace Heavy Metal Ions in Natural Samples. HJBC. 2008;36(3):235-246. https://izlik.org/JA78XU46NM

Chicago

Doğan, Mehmet. 2008. “Solid Phase Extraction Technique in Analytical Chemistry A New Preconcentration and Separation Method for The Determination of Trace Heavy Metal Ions in Natural Samples”. Hacettepe Journal of Biology and Chemistry 36 (3): 235-46. https://izlik.org/JA78XU46NM.

EndNote

Doğan M (August 1, 2008) Solid Phase Extraction Technique in Analytical Chemistry A New Preconcentration and Separation Method for The Determination of Trace Heavy Metal Ions in Natural Samples. Hacettepe Journal of Biology and Chemistry 36 3 235–246.

IEEE

[1]M. Doğan, “Solid Phase Extraction Technique in Analytical Chemistry A New Preconcentration and Separation Method for The Determination of Trace Heavy Metal Ions in Natural Samples”, HJBC, vol. 36, no. 3, pp. 235–246, Aug. 2008, [Online]. Available: https://izlik.org/JA78XU46NM

ISNAD

Doğan, Mehmet. “Solid Phase Extraction Technique in Analytical Chemistry A New Preconcentration and Separation Method for The Determination of Trace Heavy Metal Ions in Natural Samples”. Hacettepe Journal of Biology and Chemistry 36/3 (August 1, 2008): 235-246. https://izlik.org/JA78XU46NM.

JAMA

1.Doğan M. Solid Phase Extraction Technique in Analytical Chemistry A New Preconcentration and Separation Method for The Determination of Trace Heavy Metal Ions in Natural Samples. HJBC. 2008;36:235–246.

MLA

Doğan, Mehmet. “Solid Phase Extraction Technique in Analytical Chemistry A New Preconcentration and Separation Method for The Determination of Trace Heavy Metal Ions in Natural Samples”. Hacettepe Journal of Biology and Chemistry, vol. 36, no. 3, Aug. 2008, pp. 235-46, https://izlik.org/JA78XU46NM.

Vancouver

1.Mehmet Doğan. Solid Phase Extraction Technique in Analytical Chemistry A New Preconcentration and Separation Method for The Determination of Trace Heavy Metal Ions in Natural Samples. HJBC [Internet]. 2008 Aug. 1;36(3):235-46. Available from: https://izlik.org/JA78XU46NM