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. 2022 Feb 26;214:114693. doi: 10.1016/j.jpba.2022.114693

Table 3.

The parameters and their levels for robustness study.

Parameters Level
-1 0 +1
ACN % 19 20 21
Flow rate (mL/min) 0.495 0.500 0.505
Temperature (°C) 29 30 31