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Table 3 Interday and Intraday precision results for GC-MS

From: Development and validation of the method for the detection of glimepiride via derivatization employing N-methyl-N-(trimethylsilyl) trifluoroacetamide using gas chromatography-mass spectrometry

Concentration (ng/ml) Intraday Interday
Mean (x) X + SD Precision (RSD) (%) Mean (x) X + SD Precision (RSD) (%)
500 317.2 317.2 + 3.162 0.74 315 315 + 3.16 0.70
1000 996.4 996.4 + 7.82 0.75 985.2 985.2 + 7.85 0.77
1500 1327.6 1327.6 + 11.01 0.82 1320.4 1320.4 + 11.34 0.85
2000 1987.6 1987.6 + 15.07 0.78 1980.2 1980.2 + 15.4 0.79
2500 2314.4 2314.4 + 17.32 0.99 2307.4 2307.4 + 16.31 1.003