研究文章
采样和分析方法对Alpha-Dicarbonyl调味化合物通过衍生化o苯二胺,并使用GC-NPD分析
表9
测定空气采样的能力o-PDA-treated硅胶管在80%相对湿度在2的浓度水平。
|
| 被分析物 |
级别(μg) |
取样体积(左) |
平均回收率(%) |
标准偏差 |
|
| 双乙酰 |
0.985 |
3 |
78.1 |
0.016 |
| 0.985 |
6 |
82.1 |
0.058 |
| 0.985 |
12 |
95.2 |
0.097 |
| 0.985 |
18 |
82.4 |
0.034 |
| 0.985 |
24 |
103.6 |
0.028 |
| 490.0 |
3 |
97.4 |
0.047 |
| 490.0 |
6 |
88.5 |
0.074 |
| 490.0 |
12 |
112.7 |
0.034 |
| 490.0 |
18 |
100.6 |
0.018 |
| 490.0 |
24 |
93.7 |
0.065 |
|
| 2,3-Pentanedione |
0.959 |
3 |
100.1 |
0.030 |
| 0.959 |
6 |
76.1 |
0.051 |
| 0.959 |
12 |
101.2 |
0.068 |
| 0.959 |
18 |
97.8 |
0.048 |
| 0.959 |
24 |
81.1 |
0.139 |
| 480.0 |
3 |
97.8 |
0.055 |
| 480.0 |
6 |
92.3 |
0.085 |
| 480.0 |
12 |
99.2 |
0.058 |
| 480.0 |
18 |
87.1 |
0.010 |
| 480.0 |
24 |
85.2 |
0.071 |
|
| 2,3-Hexanedione |
0.841 |
3 |
100.7 |
0.018 |
| 0.841 |
6 |
69.5 |
0.077 |
| 0.841 |
12 |
98.3 |
0.056 |
| 0.841 |
18 |
101.4 |
0.027 |
| 0.841 |
24 |
80.4 |
0.141 |
| 420.0 |
3 |
95.5 |
0.049 |
| 420.0 |
6 |
92.5 |
0.086 |
| 420.0 |
12 |
87.7 |
0.053 |
| 420.0 |
18 |
94.7 |
0.048 |
| 420.0 |
24 |
87.6 |
0.173 |
|
|
