Small‐angle neutron scattering (SANS) measurements on mixtures of hydrogenous and deuterated species can be used to determine the distribution of molecules in these blends. The molecules are isotopically distinguishable but are chemically identical. This approach has been applied with great success to polymer science, but fewer examples are available for small molecules, such as solvents. SANS measurements of combinations of the linear alkane n‐tetradecane were performed on mixtures prepared at different volume fractions of hydrogenous and deuterated alkane. These data have been analyzed using the framework of polymer scattering, and good agreement between experiment and theory was found.

中文翻译：

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氢和氘代正十四烷混合物的小角中子散射测量

含氢和氘代物质混合物的小角中子散射（SANS）测量可用于确定这些混合物中分子的分布。这些分子在同位素上是可区分的，但在化学上是相同的。该方法已成功应用于聚合物科学，但是对于诸如溶剂之类的小分子而言，可用的实例较少。对在不同体积分数的含氢和氘代烷烃制备的混合物上进行的直链烷烃正十四烷组合的SANS测量。这些数据已使用聚合物散射的框架进行了分析，并在实验和理论之间找到了很好的一致性。