粘结剂羧甲基纤维素钠含量对自涂薄层板色谱性能的影响

Study of the Effect of the Contents of the Binder , SodiumCarboxymethyI Cellulose,on the Chromatographic Performance of Home-Coated Thin-Layer Plates

通过系统考察粘结剂羧甲基纤维素钠的含量对自涂薄层板色谱性能的影响规律，为优化涂板条件提供了依据。考察结果表明，用浓度为１．０％（Ｗ／Ｖ）左右的羧甲基纤维素钠溶液调制硅胶匀浆时，制得的薄层板的色谱性能最佳。同时，这种在优化条件下涂制的薄层板具有适当的层强度，适用于各种加样技术，方便于操作。

he effect of the contents of the binder,sodium carboxymethyl cellulose(CMC),on the chro-matographic perforrnance of laboratory home-coated thin- layer plates is investigated systematically.The re-sults showed that the performance reached the optimum when the plates were coated employing the slurryprepared with a CMC solution of ca. 1.0%(W/V)in water.Furthermore,the plates so coated have an ap-propriate rigidity,thus,are convenient to operate and suitable for various sample application technologies. The finding provides a base in optimizing the coating conditions for producing TLC plates in higher quality.