Abstract

This paper describes an analytical method for the quantitation of iron, cobalt, nickel, and copper in lanthanum fluoride at trace levels with graphite furnace atomic absorption spectrometry (GFAAS) without using any matrix modifier. These metals were preconcentrated in HNO₃ and analyzed directly. The detection limits for iron, cobalt, nickel, and copper were found to be 3, 1, 2, and 2 ppb, respectively. The average precision of measurements (% RSD) for all the elements was <10%.

Laser-enhanced ionization detection of trace copper in high salt matrices

George J. Havrilla and Christopher C. Carter
Appl. Opt. 26(17) 3510-3515 (1987)

Observations of 3p⁵3d–3p⁵4f and 3p⁶3d–3p⁵3d4s transitions in iron, cobalt, nickel, and copper

M. Swartz, S. O. Kastner, L. Goldsmith, and W. M. Neupert
J. Opt. Soc. Am. 66(3) 240-244 (1976)

Sub-parts-per-billion level detection of dimethyl methyl phosphonate (DMMP) by quantum cascade laser photoacoustic spectroscopy

Anadi Mukherjee, Ilya Dunayevskiy, Manu Prasanna, Rowel Go, Alexei Tsekoun, Xiaojun Wang, Jenyu Fan, and C. Kumar N. Patel
Appl. Opt. 47(10) 1543-1548 (2008)

Carbonyl iron/graphite microspheres with good impedance matching for ultra-broadband and highly efficient electromagnetic absorption

Zilong Zhang, Xiqiao Chen, Zilin Wang, Liuyang Heng, Shuai Wang, Zhixiang Tang, and Yanhong Zou
Opt. Mater. Express 8(11) 3319-3331 (2018)

Completing the iron period: double-resonance, fluorescence-dip Rydberg spectroscopy and ionization potentials of titanium, vanadium, iron, cobalt, and nickel

Ralph H. Page and Christopher S. Gudeman
J. Opt. Soc. Am. B 7(9) 1761-1771 (1990)