Table 2: The retention times of BHA, BHT, and OMC at different flow rate of mobile phase.

Flow rate (mL/min)Retention time of BHA (minutes)Retention time of BHT (minutes)Retention time of OMC (minutes)

0.1021.1834.9340.69
0.1513.9822.8126.48
0.2010.5316.8919.49
0.258.5914.4916.99
0.307.0211.2212.94
0.355.909.0910.44
0.405.348.869.93
0.454.978.088.92
0.504.36.747.74
0.553.826.056.95
0.603.495.516.33
0.653.215.035.79
0.703.035.035.85
0.752.824.605.33
0.802.654.355.05
0.852.353.794.37
0.902.333.724.29
0.952.223.634.19
1.002.093.293.79
1.051.973.063.62
1.101.923.053.58
1.151.873.013.56
1.201.812.943.48
1.251.722.853.29