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聚乙烯咔唑(PVCz)具有光导性,与三硝基芴酮形成的电荷转移复合物已在复印版和光导热塑全息片得到应用。PVCz的电导和光物理过程对杂质十分敏感。蒽是其中主要杂质之一,并且是PVCz激发单线态和三线态的淬灭剂。因此在进行上述研究时,必须检验PVCz中的蒽含量。文献中对蒽的分析虽有报导,但尚未见PVCz中痕量蒽的分析方法。本文报导了一种简单、快速和灵敏的荧光分析法,可检测PVCz中10ppm的蒽。实验部分仪器与试剂: 英国 Unicam SP-1750型紫外可见分光光度计。日本日立MPF-4型荧光光谱仪。
Polyvinylcarbazole (PVCz) is photoconductive and charge-transfer complexes with trinitrofluorenone have been used in photocopying and photoconductive thermoplastic holographic films. PVCz’s conductance and photophysical processes are very sensitive to impurities. Anthracene is one of the major impurities and is a PVCz-excited singlet and triplet quencher. Therefore, in conducting the above studies, we must test the anthracene content in PVCz. Although anthracene analysis in the literature has been reported, but no trace of anthracene in PVCz analytical methods. This article reports a simple, fast and sensitive fluorescence assay that detects 10 ppm of anthracene in PVCz. Experimental equipment and reagents: Britain Unicam SP-1750 UV-visible spectrophotometer. Hitachi MPF-4 type fluorescence spectrometer.