NMR弛豫参数对结构变化的反应在良溶剂中比在不良溶剂中敏感。
NMR relaxation parameters are more sensitive to the variation of structure in good than in poor solvents.
我们的结论是对聚合物来说，越是不良溶剂，则GPC普适标定的适用性越小。
Our conclusion is that the poorer the solvent for the polymer, the smaller the suitability of the GPC universal calibration.
为了避免病人的潜在不良副反应，一些低严重毒性的溶剂(图2、表2)也应该限制使用。
Some solvents associated with less severe toxicity (Class 2, Table 2) should be limited in order to protect patients from potential adverse effects.
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