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Year 2002, Volume: 4 Issue: 2, 23 - 25, 01.12.2002

Bora Ristova Trajce Stafilov Dragan Mihajlovic

Abstract

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

Year 2002, Volume: 4 Issue: 2, 23 - 25, 01.12.2002

Bora Ristova Trajce Stafilov Dragan Mihajlovic

Abstract

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

Keywords

copper concentrate selenium determination matrix modifiers ETAAS

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Details

Other ID JA22DT69AC
Journal Section Research Articles
Authors

Bora Ristova This is me

Trajce Stafilov This is me

Dragan Mihajlovic This is me

Publication Date December 1, 2002
Submission Date December 1, 2002
Published in Issue Year 2002 Volume: 4 Issue: 2

Cite

APA Ristova, B., Stafilov, T., & Mihajlovic, D. (2002). Using of Chemical Modifiers in ETAAS Determination of Selenium in Copper Concentrate. Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 4(2), 23-25.
AMA Ristova B, Stafilov T, Mihajlovic D. Using of Chemical Modifiers in ETAAS Determination of Selenium in Copper Concentrate. BAUN Fen. Bil. Enst. Dergisi. December 2002;4(2):23-25.
Chicago Ristova, Bora, Trajce Stafilov, and Dragan Mihajlovic. “Using of Chemical Modifiers in ETAAS Determination of Selenium in Copper Concentrate”. Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi 4, no. 2 (December 2002): 23-25.
EndNote Ristova B, Stafilov T, Mihajlovic D (December 1, 2002) Using of Chemical Modifiers in ETAAS Determination of Selenium in Copper Concentrate. Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi 4 2 23–25.
IEEE B. Ristova, T. Stafilov, and D. Mihajlovic, “Using of Chemical Modifiers in ETAAS Determination of Selenium in Copper Concentrate”, BAUN Fen. Bil. Enst. Dergisi, vol. 4, no. 2, pp. 23–25, 2002.
ISNAD Ristova, Bora et al. “Using of Chemical Modifiers in ETAAS Determination of Selenium in Copper Concentrate”. Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi 4/2 (December 2002), 23-25.
JAMA Ristova B, Stafilov T, Mihajlovic D. Using of Chemical Modifiers in ETAAS Determination of Selenium in Copper Concentrate. BAUN Fen. Bil. Enst. Dergisi. 2002;4:23–25.
MLA Ristova, Bora et al. “Using of Chemical Modifiers in ETAAS Determination of Selenium in Copper Concentrate”. Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi, vol. 4, no. 2, 2002, pp. 23-25.
Vancouver Ristova B, Stafilov T, Mihajlovic D. Using of Chemical Modifiers in ETAAS Determination of Selenium in Copper Concentrate. BAUN Fen. Bil. Enst. Dergisi. 2002;4(2):23-5.