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Table 2 System precision data

From: Quantification of organic volatile impurities in Oseltamivir phosphate drug substances by head space gas chromatography

No of injections Peak areas
Methanol Ethanol Acetonitrile IPA DCM MTBE Ethyl acetate
1 286.66 454.05 46.85 471.52 36.17 4470.86 982.84
2 258.7 443.7 45.24 462.03 35.3 4406.22 964.7
3 260.6 451.7 46.03 469.01 35.7 4407.46 970.3
4 267.99 454.64 45.92 473.38 35.78 4498.06 976.72
5 282.98 463.53 47.53 482.04 36.54 4473.67 992.4
6 286.41 464.41 48.15 487.92 36.26 4421.39 984.88
Avg 273.9 455.3 46.6 474.3 36 4446.3 978.6
STDEV 12.997 7.749 1.092 9.301 0.449 39.413 10.134
%RSD 4.7 1.7 2.3 2 1.2 0.9 1
No of injections Peak areas
THF 1,4-Dioxane DMF Toluene Hexanes
1 266.16 27.79 8.37 192.18 613.03
2 262.23 27.2 7.67 187.52 607.53
3 263.57 27.42 7.44 188.88 606.39
4 265.19 27.62 8.03 191.38 627.26
5 268.5 28.33 7.99 194.33 608.18
6 265.31 28.98 9.87 199.53 604.22
Avg 265.2 27.9 8.2 192.3 611.1
STDEV 2.158 0.658 0.865 4.285 8.434
%RSD 0.8 2.4 10.5 2.2 1.4
  1. Bold values indicate better results than other filtering methods