B. Gumgum et C. Hamamci, THE EFFECT OF DIFFERENT MINERAL ACIDS ON EMISSION INTENSITY IN ICP SPECTROCHEMISTRY, Journal of quantitative spectroscopy & radiative transfer, 50(1), 1993, pp. 55-57
HNO3, HCl, H2SO4, HClO4, and H3PO4 were investigated for their effects
on the emission intensities of some transition and rare earth element
s. The mixture solutions of Co, Cu, La, Mo, V, Y, and Zn were prepared
with these acids and determined by ICP-AES (Inductively Coupled Plasm
a-Atomic Emission Spectrometry). The acids of HNO3, HCl, and HClO4 hav
e showed similar effect on the emission intensities. The extent of sig
nal suppressions were large in H2SO4 compared with the other acids. Th
e relative standard deviations range from 0.03 to 5.40%. Recoveries of
Co, Cu, La, Mo, Y, V, and Zn were in the range of 97.0-105.1%, 93.0-1
01.2%, 95.5-110.3%, 76.2-96.8%, and 96.8-134.5% for HNO3, HCl, HClO4,
H2SO4, and H3PO4 respectively.