Abstract
AbstractIt has been established by an evaluation of 6 production samples ofall‐rac‐α‐tocopheryl acetate that all 4 racemates (RRS/SSR, RRR/SSS, RSR/SRS and RSS/SRR) are consistently present in equimolar amounts (SD<0.3, RSD<1.2%). An analysis of variance indicated variance due to signal noise to be consistent within a sample run but to vary from day to day. Variance due to area measurement was greater for the first and last eluted racemates than for the second and third. Peak width and asymmetry were found to be extremely sensitive to sample loading and, even within acceptable limits for good quantitation, the distortion was sufficient to give the elution profile the appearance of a sample composed of 4 components in unequal proportions increasing according to the order of elution.
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