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BIOSORPTION ANDSEPARATION/PRECONCENTRATION OF LEAD ANDNICKEL ON RHODOCOCCUS RUBER BIOMASS    
Yazarlar
Dr. Öğr. Üyesi Esin KIRAY
Kırşehir Ahi Evran Üniversitesi, Türkiye
Dr. Öğr. Üyesi Çiğdem ER ÇALIŞKAN
Ahi Evran Üniversitesi, Türkiye
Ergin Kariptaş
Samsun Üniversitesi, Türkiye
Prof. Dr. Harun ÇİFTÇİ
Ahi Evran Üniversitesi, Türkiye
Özet
At the present time emphasis is given to the utilization of microorganisms because of their great ability to absorb metal ions from aqueous solution. Hence, in this study, Pb2+ and Ni2+ ions at trace levels were separated and preconcentrated on a column containing a bacterium, Rhodococcus ruber bacterial biomass (RrBB), as a new solid phase extraction technique prior to their flame atomic absorption spectrometry (FAAS) determination. The optimum experimental and analytical parameters such as pH of sample solution, volume and concentration of eluent, flow rate of sample solution and eluent, sample volume, effect of common matrix ions and capacity of biosorbent were investigated and optimized. Under the optimized conditions, the preconcentration factors for Pb2+ and Ni2+ were calculated as 150 and 100, respectively. The analytical detection limits for Pb2+ and Ni2+ were 0.32μgL-1 and 0.24 μgL-1 respectively. The Langmuir monolayer adsorption capacity of biomass was estimated as 42.91 and 6.78 mg g-1 for Pb2+ and Ni2+, respectively. Certified reference material (NIST SRM 1640a) was also used to confirm the accuracy of the method. The developed solid phase extraction method was applied successfully for the determination of Pb2+ and Ni2+ in various water samples.
Anahtar Kelimeler
Lead | Nickel | Preconcentration | Rhodococcus ruber | Separation
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Fresenius Environmental Bulletin
Dergi ISSN 1018-4619
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 12-2017
Cilt No 25
Sayı 12
Sayfalar 7740 / 7749
Makale Linki https://www.researchgate.net/publication/326394945_Biosorption_and_separationpreconcentration_of_lead_and_nickel_on_rhodococcus_ruber_biomass
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
SCOPUS 2

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