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CH4、NH3、H2O、HF HF、H2O、NH3、CH4 H2O、HF、CH4、NH3 HF、H2O、CH4、NH3、
±0.20%CH4 ±0.10%CH4 ±0.01%CH4 ±0.05%CH4
≥1.0%CH4;≥1.0%CH44;<1.0%CH4 ≥1.5%CH4;≥1.5%CH44;<1.0%CH4 ≥1.0%CH4;≥1.5%CH44;<1.0%CH4 ≥1.5%CH4;≥1.0%CH44;<1.0%CH4
±0.20%CH4 ±0.10%CH4 真值的±10%CH4 真值的±20%CH4
≥1.0%CH4;≥1.0%CH4; ≥1.5%CH4;≥1.5%CH4; ≥1.0%CH4;≥1.5%CH4; ≥1.5%CH4;≥1.0%CH4;
0.2%CH4 0.4%CH4 0.3%CH4 0.01%CH4
CH3Cl CH2Cl2 CHCl3 CCl4 CCl3
±0.1%CH4 ±0.2%CH4 0.1%CH4 0.2%CH4
CH3Cl CH2C12 CHCl3 CCl4 CCl3
0.04%CH4,0.4%CH4 0.1%CH4,0.4%CH4 0.02%CH4,0.4%CH4 0.1%CH4,0.5%CH4
0.1%CH4,0.1%CH4 0.1%CH4,0.4%CH4 0.01%CH4,0.1%CH4 0.01%CH4,0.01%CH4
0.1%CH4 0.2%CH4 0.3%CH4 0.01%CH4
CH4 (g)+2NO2 (g)= N2 (g)+CO2 (g)+2H2O (l) △H.=-867 kJ·mol-1 若0.2 mol CH4还原NO2至N2,在上述条件下放出的热量为173.4 kJ 1molCH4催化还原NOx为N2的过程中,若x=1.6,则转移的电子为3.2 mol 若用4.48L CH4还原NO2至N2,整个过程中转移的电子为3.2 mol
≥0.5%CH4,≥0.5%CH4,<0.5%CH4 ≥1.5%CH4,≥1.5%CH4,<1.5%CH4 ≥1.0%CH4,≥1.0%CH4,<1.0%CH4
0.0t%CH4 0.02%CH4 0.05%CH4 0.03%CH4