Actual   PGA1 concentration AUC (mAU*min)   (µg/ml)   1 1.425 1.7328 2 1.425 1.7466 3 1.425 1.7362 4 1.425 1.7600       5 1.425 1.7396       6 1.425 1.7008 Average   1.7360 S.D   0.020 R.S.D   1.139 S.D = Standard Deviation R.S.D = Relative Standard Deviation

Table 2: Intra-day precision of PGA1 quantitation.