Due to the low solubility of polymers and oligomers, the concentrations of samples were set at 0.1 mg/ml in THF-H2O co-solvents. In addition, another fw slot at 77:23 was also examined for started in about 12 min, but in the second case the amplification occurred later after 21 min, although there exists a minor peak ~5 min prior to the maximum peak. In the latter, the optical rotation gradually decreased close to ~ zero baseline in ~50 min. In the former, the optical rotation cannot be close to the baseline within 1 hour, but if the sample is kept for a further prolonged period (over 1.5 h) inside the instrument, it is much closer to the baseline.