Research Article
Comparison of DMA-80 and ICP-MS Combined with Closed-Vessel Microwave Digestion for the Determination of Mercury in Coal
Table 2
ICP-MS working conditions.
| Item | Value/status | Item | Value/status |
| Plasma RF power | 1400 W | Uptake time | 60s | Nebulizer gas flow | 1.01 L/min | Washout time | 100s | Auxiliary gas flow | 0.90 L/min | Pole bias | −6.0 V | Cool gas flow | 14 L/min | Hexapole bias | −5.0 V | Sampling depth | 100steps | Number of main runs | 3 | ICP-MS interface | Nickel xt | Dwell time | 10 ms | Peristaltic pump speed | 30 rpm | Acquisition mode | Peak jumping mode | Spray chamber temperature | 2°C | Number of channels | 3 |
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