The Chemical Analysis of Argonne Premium Coal Samples
Edited by Curtis A. Palmer
1997
U.S. Geological Survey Bulletin 2144
Determination of Mercury and Selenium in Eight Argonne Premium Coal Samples by Cold-Vapor and Hydride-Generation Atomic Absorption Spectrometry
By Richard M. O'Leary
Table 1. Operating conditions for determination of mercury and selenium by cold-vapor absorption spectrometry (CVAAS) and hydride-generation AAS (HGAAS), respectively.
| Hg | Se | |
| Source | Hg hollow cathode lamp. |
Electrodeless discharge lamp (EDL). |
| Slit | 0.7 nm | 0.7 nm |
| Wavelength | 253.7 nm | 196.0 nm |
| Quartz cell temperature | 100°C | 2,000°C |
| Mode | Absorbance | Absorbance |
| Recorder | 2 mV, 5 mm/ min |
10 mV, 5 mm/ min |
| AA recorder mode | TC3 | TC3 |
| Sensitivity (peak height) | 1 µg/L = 19 mm | 10 µg/L = 72 mm |
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