Using of Chemical Modifiers in ETAAS Determination of Selenium in Copper Concentrate

Bora RİSTOVA; Trajce STAFİLOV; Dragan MİHAJLOVİC

Makale detayları

Using of Chemical Modifiers in ETAAS Determination of Selenium in Copper Concentrate

Yazarlar:

Bora RİSTOVA | Trajce STAFİLOV | Dragan MİHAJLOVİC

Yayıncı:

Balıkesir University

Dergi:

Journal of Balıkesir University Institute of Science and Technology 2002 Vol.4 Issue 2, pp.23-25

Belge Tipi:

Makale

Yayın Tarihi:

11/2002

Belge Dili:

Türkçe

Document ID (Org No.):

2000926063

Sıklık:

İki Yıllık

eISSN:

2536-5142

pISSN:

1301-7985

Özet:

 

Using of different chemical modifiers in the determination of some elements in copper concentrates by ETAAS has been proposed. Different ammonium salts (ammonium molibdate, ammonium vanadate, ammonium nitrate, ammonium sulfate and ammonium dichromate), Ba(OH)2, H3BO3, and V2O5, compared with Ni(NO3)2 as a classical modifier for thermal stabilization of selenium were investigated. It was found that ammonium dichromate give the best results as a modifier. In presence of ammonium dichromate, pyrolysis temperature was extended up to 1100 oC. In the atomization stage, a constant absorbance was obtained between 1900 and 2300 oC. After preliminary investigation, the method for determination of selenium in copper ores and concentrates was developed. Limit of detection of 1 ng/ml Se was achieved, without preconcentration of Se or separation of sample matrix.

Makale detayları

Using of Chemical Modifiers in ETAAS Determination of Selenium in Copper Concentrate

Yazarlar: Bora RİSTOVA | Trajce STAFİLOV | Dragan MİHAJLOVİC

Yayıncı: Balıkesir University

Dergi: Journal of Balıkesir University Institute of Science and Technology 2002 Vol.4 Issue 2, pp.23-25

Belge Tipi: Makale

Yayın Tarihi: 11/2002

Belge Dili: Türkçe

Document ID (Org No.): 2000926063

Sıklık: İki Yıllık

eISSN: 2536-5142

pISSN: 1301-7985

Sayı

Yazarlar:

Bora RİSTOVA | Trajce STAFİLOV | Dragan MİHAJLOVİC

Yayıncı:

Balıkesir University

Dergi:

Journal of Balıkesir University Institute of Science and Technology 2002 Vol.4 Issue 2, pp.23-25

Belge Tipi:

Makale

Yayın Tarihi:

11/2002

Belge Dili:

Türkçe

Document ID (Org No.):

2000926063

Sıklık:

İki Yıllık

eISSN:

2536-5142

pISSN:

1301-7985