Intra- and inter-day precision of four concentrations of steviol equivalents (abbreviated
as SVeqs), as well as instrument precision, given as the average variation of the
retention times of isosteviol (ISV) and dihydroisosteviol (DHISV) (n = 12 or 24 for
intra- and inter-day precision, respectively). Intra-day precision was analyzed at three
different moments during the day (n = 3 per concentration). Inter-day variation was
analyzed on six consecutive days (n = 6 per concentration).