超声提取-离子色谱法检测PM2.5中水溶性阴离子
离子种类 | 保留时间 | 回归方程 | 线性范围mg/L | 相关系数 | 检出限mg/L | 定量限mg/L |
F- | 6.20 | A = -4.86262E-3 + 0.0137188×Q | 0.2~1.6 | 0.9995 | 0.01 | 0. 015 |
Cl- | 9.27 | A = -1.09284 + 0.0139652×Q | 10~100 | 0.9996 | 0.05 | 0.167 |
NO3- | 15.37 | A = -0.752535 + 0.0313958×Q | 2~30 | 0.9990 | 0.05 | 0.167 |
SO42- | 30.13 | A = -0.581212 + 7.90198E-3×Q | 10~100 | 0.9992 | 0.05 | 0.167 |
离子名称 | 加标量(mg/L) | 平均回收率(%) | RSD(%) |
F-(0.03 mg/L) | 0.2 | 94.6 | 2.46 |
0.8 | 99.3 | 1.38 | |
1.2 | 99.7 | 1.23 | |
Cl-(4.62 mg/L) | 10 | 99.7 | 2.07 |
50 | 98.4 | 2.19 | |
80 | 101.8 | 2.65 | |
NO3-(3.70 mg/L) | 2 | 95.4 | 3.30 |
10 | 97.5 | 1.05 | |
20 | 101.6 | 2.81 | |
SO42-(14.50 mg/L) | 10 | 92.5 | 2.69 |
50 | 94.7 | 1.73 | |
80 | 99.9 | 0.92 |
样品编号 | F-(μg/m3) | Cl-(μg/m3) | NO3-(μg/m3) | SO42-(μg/m3) |
1 | <0.01 | 8.02 | 63.9 | 64.8 |
2 | 0.03 | 4.36 | 36.6 | 18.9 |
3 | 0.04 | 5.83 | 47.9 | 27.5 |
4 | 0.05 | 8.46 | 73.2 | 58.2 |
5 | <0.01 | 5.23 | 60.9 | 35.3 |
6 | 0.06 | 7.13 | 44.2 | 31.4 |
7 | <0.01 | 3.84 | 38.2 | 27.4 |
8 | 0.03 | 3.94 | 40.5 | 31.1 |
9 | 0.04 | 8.91 | 62.8 | 65.0 |
10 | 0.06 | 5.10 | 35.9 | 19.5 |
11 | 0.15 | 5.72 | 46.3 | 28.5 |
12 | 0.22 | 8.60 | 63.9 | 62.7 |
13 | <0.01 | 3.87 | 36.9 | 27.2 |
14 | <0.01 | 4.16 | 41.0 | 31.2 |
15 | 0.07 | 9.23 | 52.3 | 39.4 |
16 | 0.03 | 5.83 | 74.2 | 44.1 |
17 | 0.02 | 2.97 | 14.11 | 8.27 |
18 | <0.01 | 2.67 | 14.54 | 6.94 |
19 | <0.01 | 2.78 | 11.08 | 5.97 |
20 | 0.28 | 2.70 | 5.76 | 5.46 |
21 | <0.01 | 2.75 | 8.61 | 5.25 |
22 | <0.01 | 1.94 | 8.29 | 3.18 |
23 | 0.03 | 2.98 | 14.70 | 8.87 |
24 | 0.55 | 2.69 | 9.50 | 7.31 |
25 | <0.01 | 2.82 | 10.79 | 6.21 |
26 | 0.40 | 2.92 | 5.77 | 5.99 |
27 | 0.02 | 3.32 | 9.03 | 5.89 |
28 | <0.01 | 2.42 | 9.12 | 7.00 |
29 | <0.01 | 2.77 | 10.82 | 5.89 |
30 | <0.01 | 2.81 | 11.10 | 6.30 |
31 | 0.12 | 3.44 | 18.77 | 6.35 |
32 | 0.40 | 4.22 | 20.89 | 7.23 |