Journal of Chemistry / 2014 / Article / Tab 1 / Research Article
Trace Elements Analysis in Drinking Water of Meghalaya by Using Graphite Furnace-Atomic Absorption Spectroscopy and in relation to Environmental and Health Issues Table 1 AAS Vario-6 graphite furnace elements instrumental analytical conditions.
Elements Wavelength (nm) Slit width (nm) Atomization temp. (0°C) Matrix modifiers Interference wavelength (nm) Contamination Li 670.8 0.8 2250–2300 — — Possible Na 589.0 0.5 1400–1450 — — — Cr 357.9 0.8 2100–2200 NH4 H2 PO4 Fe 358.1, Nb 358.0 — Mn 279.5 0.2 1600–1650 Mg(NO3 )2 + Pd(NO3 )2 Mg 279.5, Fe 279.5, Possible Fe 248.3 0.2 1850–2050 Mg(NO3 )2 Depressions by Al and Si signal possible Co 240.7 0.2 2000–2100 Mg(NO3 )2 — — Ni 232.0 0.2 2100–2300 Mg(NO3 )2 — — Cu 324.8 0.8 1800–1900 — Ni 324.3, Mn 324.9, Possible Zn 213.9 0.8 1000–1100 Pd(NO3 )2 Cu 213.9, Te 214.3, Possible As 193.7 0.8 2050–2250 Ni(NO3 )2 — — Se 196.0 1.2 1750–1900 Ni(NO3 )2 — — Rb 780.0 1.2 1450–1700 — — — Mo 313.3 0.8 2550–2600 Mg(NO3 )2 — Formation of carbide typical Ag 328.1 0.8 1150–1350 NH4 H2 PO4 Rh 328.1, Zn 328.2, Possible Cd 228.8 0.8 900–1200 NH4 H2 PO4 + Mg(NO3 )2 As 228.9, Fe 228.8 — Au 242.8 0.8 2340–2350 Mg(NO3 )2 Sn 242.1, Co 242.5 Depression by Pt and Pd signal are possible Pb 217.0 0.5 1200–1350 Pd(NO3 )2 + Mg(NO3 )2 Cu 216.5, Fe 216.7, Possible Ca 422.7 1.2 2350–2500 — — — Mg 285.2 0.8 1500–1650 — — — K 766.5 1.2 1450–1600 — — —
