Makro/Mikro Alg Örneklerinde Ağır Metal İçeriklerinin ICP-OES ile Belirlenmesi.

Abstract

Algler zengin bir pigment, yağ, protein, fenolik bileşik, terpen ve alkaloit kaynağı olarak su ortamındaki besin zincirinin önemli bir parçasıdır. Algler, içerdikleri bileşiklerin sağladığı faydalı etkiler nedeniyle sağlık ürünlerinde yaygın olarak kullanılmaktadır. Alglerin yaşadığı sucul ekosistemlerdeki ağır metaller, besin zincirinde birikerek halk sağlığı açısından küresel bir sorun olarak karşımıza çıkmaktadır. Alglerin kullanımının değerlendirilmesinde temel elementlerin incelenmesi kadar ağır metal kalıntılarının belirlenmesi de önemlidir. Bu çalışmada Güneydoğu Anadolu Bölgesi'nden toplanan 7 farklı alg türünün ağır metal içeriklerinin belirlenmesi amaçlandı. Örnekler mikrodalga çözündürme yöntemiyle analize hazırlandı. Analiz ICP-OES ile gerçekleştirildi. Tüm alg türlerinde tespit edilen en baskın elementler Na, K, Ca, K, P, Mn ve Fe olurken, Mg, Al, Li, Be, Cd ve Sb ise en az konsantrasyona sahip elementler oldu. Microcystis aeruginosa (631,70±2,01 µg/kg) ve Myriophyllum spicatum'un (1067,69±1,91 µg/kg) Ni konsantrasyonları ile Aphanizomenon flos-aquae'nin (1032879,59±21924,44 µg/kg) Na konsantrasyonları Uluslararası Atom Enerjisi Ajansı (IAEA) tarafından tanımlanan kabul limitlerinin (Ni için 0.571±0.028 mg/kg; Na için 680.00± 23.00 mg/kg) üzerinde tespit edildi. Ca, K, Cr, Mn, Fe, Co, Cu, Zn, As, Cd ve Pb konsantrasyonlarının tamamı IAEA tarafından tanımlanan kabul edilebilir sınırlar dahilinde tespit edildi. Sonuçlara göre bu bölgeden toplanan alg türlerinin potansiyel fonksiyonel kaynak olarak kullanılabileceği değerlendirilmektedir.

Keywords

• Macro/micro algae
• Trace elements
• Heavy metals
• ICP-OES.

Determination of Heavy Metal Contents in Macro/Micro Algae Samples by ICP-OES.

Abstract

Algae are an important part of the food chain in the aquatic environment as a rich source of pigments, oils, proteins, phenolic compounds, terpenes and alkaloids. Algae are widely used in well-being products due to the beneficial effects provided by the compounds they contain. Heavy metals in aquatic ecosystems where algae inhabited appears as a global problem in terms of public health due to accumulated in the food chain. In evaluating the usage of algae, it is important to determine the heavy metal residues as well as to examine essential elements. In this study, it was aimed to determine heavy metal contents in 7 different algae species that collected from Southeastern Anatolia Province. The samples were prepared for analysis by the microwave solubilization method. The analysis were carried out by ICP-OES. The detected most dominant elements were Na, K, Ca, K, P, Mn and Fe while the Mg, Al, Li, Be, Cd and Sb were least concentration in all algae species. The Ni concentrations of Microcystis aeruginosa (631.70±2.01 µg/kg) and Myriophyllum spicatum (1067.69±1.91 µg/kg) and the Na concentrations of Aphanizomenon flos-aquae (1032879.59±21924.44 µg/kg) were detected above the acceptance limits (0.571±0.028 mg/kg for Ni and 680.00± 23.00 mg/kg for Na) that are defined by the International Atomic Energy Agency (IAEA). The concentrations of Ca, K, Cr, Mn, Fe, Co, Cu, Zn, As, Cd and Pb were detected all within the acceptable limits defined by IAEA. According to results, the evaluated that algae species were collected from this region can be used as a potential functional resource.

Keywords

• Macro/micro algae
• Heavy metals
• ICP-OES.

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