Penentuan Kandungan Besi, Kadmium dan Kalium dalam Daun Tembakau (Nicotiana tabacum L) dengan Metode Spektrofotometri Serapan Atom (SSA)

Abstract

There has been done a research about analyzing the Cd, Fe and K in the tobacco leaves using the Spectrophotometer of Atomic Absorption (SSA). The analysis of iron, cadmium and potassium are done through dry ashine destruction from the sample of sort oftobacco {Nicotiana tabacum L) The sample ofthe tobacco leaves is dissolved with HNO, 15,0 Nand HC104 30Ncontinued with the evaporating and filtering processes. The solution of liquid had then the residue from the filtration turned to dust in a temperature of 450°C with muffle furnace, and dissolved with aquaregia. The solution of liquid becomes the main solution to be analyzed with the standard adition method. The analyzing result shows that the amount of Cd, Fe and K in the tobacco leaves are 0,0456 ppm; 0,0461 ppm; and 0,0637 ppm respectively The dry ashing destructions are able to divide the organic components found in the sample of tobacco leaves. By analyzing the standard adition it shows that the content of iron, cadmium, and potassium in the tobacco are still under the basic standard quality oftobacco assessment. Key Words: Dry ashing destruction, tobacco, spectrophotometer of atomic absorption (SSA), and standard adition analysis.