Analysis of Potable Water for Trace Elements by ICP-OES
The document details a method for determining major, minor, and trace elements in water samples using Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES). To ensure accurate results near detection limits, the study employed a ten-fold pre-concentration of samples via evaporation. The analysis was validated against USEPA Pollution Quality Control water samples.
| RF Generator Frequency | 40.68 MHz |
|---|---|
| Power | 1.2 kW |
| Plasma gas flow | 12.0 L/min |
| Sample uptake rate | 1.4 mL/min |
Measurements were performed on either the Agilent Liberty 100 or the Liberty 200 Inductively Coupled Plasma Atomic Emission Spectrometer.
A ten-fold pre-concentration by evaporation was applied to avoid routine analysis close to the detection limit.
The detection limit for Al at 167.081 nm is 15 ng/mL.