Sl no. 242 nm 243 nm 244 nm 1 0.65 0.653 0.657 2 0.65 0.653 0.656 3 0.651 0.653 0.656 4 0.651 0.653 0.657 5 0.651 0.654 0.657 6 0.652 0.654 0.657 Mean 0.650833 0.6533333 0.6566667 SD 0.000753 0.0005164 0.0005164 %RSD 0.115663 0.0790405 0.0786393

Table 6: Evaluation data of robustness study.