Table 2 Linear regression equations for standard components of methyl ester of 34 fatty acids
Number | Name abbreviated | Retention time(min) | Quantitative ions(m/z) | Linear equation | Correlation coefficient (R 2) | Linear range (mg/L) |
|---|---|---|---|---|---|---|
1 | C6:0 | 7.075 | 74 | Y = 0.05665x-0.01393 | 0.9993 | 0.0263–26.3 |
2 | C8:0 | 10.166 | 74 | Y = 0.06949x + 0.006365 | 0.9990 | 0.0263–26.3 |
3 | C10:0 | 12.867 | 74 | Y = 0.07117x + 0.01177 | 0.9980 | 0.0263–26.3 |
4 | C11:0 | 14.101 | 74 | Y = 0.07200x + 0.01237 | 0.9978 | 0.0263–26.3 |
5 | C12:0 | 15.272 | 74 | Y = 0.07187x + 0.01333 | 0.9972 | 0.0263–26.3 |
6 | C13:0 | 16.384 | 74 | Y = 0.07259x + 0.009960 | 0.9979 | 0.0263–26.3 |
7 | C14:0 | 17.446 | 74 | Y = 0.07177x + 0.007484 | 0.9981 | 0.0263–26.3 |
8 | C14:1 | 17.844 | 55 | Y = 0.02616x + 0.006221 | 0.9970 | 0.0263–26.3 |
9 | C15:0 | 18.463 | 74 | Y = 0.07181x + 0.002304 | 0.9988 | 0.0263–26.3 |
10 | C15:1 | 18.848 | 55 | Y = 0.02673x + 0.0007506 | 0.9988 | 0.0263–26.3 |
11 | C16:0 | 19.442 | 74 | Y = 0.05832x + 0.03077 | 0.9944 | 0.0526–52.6 |
12 | C16:1 | 19.703 | 55 | Y = 0.02076x + 0.04067 | 0.9961 | 0.0263–26.3 |
13 | C17:0 | 20.379 | 74 | Y = 0.06140x-0.005180 | 0.9993 | 0.0263–26.3 |
14 | C17:1 | 20.667 | 55 | Y = 0.02095x + 0.003006 | 0.9992 | 0.0263–26.3 |
15 | C18:0 | 21.453 | 74 | Y = 0.05421x-0.009999 | 0.9994 | 0.0263–26.3 |
16 | C18:1 | 21.729 | 55 | Y = 0.01613x-0.002003 | 0.9990 | 0.0526–52.6 |
17 | C18:2 | 22.343 | 67 | Y = 0.01982x-0.009295 | 0.9993 | 0.0526–52.6 |
18 | C18:3 N6 | 22.785 | 79 | Y = 0.02045x-0.007422 | 0.9985 | 0.0263–26.3 |
19 | C18:3 N3 | 23.279 | 79 | Y = 0.02420x-0.01029 | 0.9978 | 0.0263–26.3 |
20 | C20:0 | 24.091 | 74 | Y = 0.03425x-0.01337 | 0.9981 | 0.0263–26.3 |
21 | C20:1 | 24.349 | 55 | Y = 0.01309x-0.004675 | 0.9984 | 0.0263–26.3 |
22 | C20:2 | 24.873 | 81 | Y = 0.01390x-0.007475 | 0.9975 | 0.1315–26.3 |
23 | C21:0 | 25.146 | 74 | Y = 0.02540x-0.009271 | 0.9984 | 0.0263–26.3 |
24 | C20:3 N6 | 25.161 | 67 | Y = 0.01257x-0.004708 | 0.9984 | 0.0263–26.3 |
25 | C20:4 N6 | 25.417 | 79 | Y = 0.01483x-0.007204 | 0.9965 | 0.0263–26.3 |
26 | C20:3 N3 | 25.554 | 79 | Y = 0.01606x-0.007747 | 0.9959 | 0.0263–26.3 |
27 | C20:5 N3 | 26.159 | 79 | Y = 0.01543x-0.01027 | 0.9958 | 0.1315–26.3 |
28 | C22:0 | 26.212 | 74 | Y = 0.01714x-0.007112 | 0.9964 | 0.0263–26.3 |
29 | C22:1 N9 | 26.494 | 55 | Y = 0.007372x-0.003041 | 0.9924 | 0.0263–26.3 |
30 | C22:2 | 27.123 | 67 | Y = 0.008102x-0.004111 | 0.9959 | 0.263–26.3 |
31 | C23:0 | 27.450 | 74 | Y = 0.01109x-0.006266 | 0.9936 | 0.0263–26.3 |
32 | C24:0 | 28.928 | 74 | Y = 0.007231x-0.002510 | 0.9953 | 0.263–26.3 |
33 | C24:1 | 29.357 | 55 | Y = 0.003275x-0.002131 | 0.9919 | 0.0263–26.3 |
34 | C22:6 N3 | 29.462 | 79 | Y = 0.002571x-0.00006972 | 0.9990 | 0.0263–26.3 |