| 日光照射对荧光增白剂VBL顺-反异构现象影响的研究 |
| |
| 引用本文： | 张红兵,吕荣文.日光照射对荧光增白剂VBL顺-反异构现象影响的研究[J].染料与染色,2004,41(5):259-261. |
| |
| 作者姓名： | 张红兵 吕荣文 |
| |
| 作者单位： | 大连理工大学精细化工国家重点实验室,大连,116012 |
| |
| 摘 要： | 用紫外光谱和荧光光谱法对日光照射荧光增白剂VBL溶液进行了研究。结果表明、随日光照射时间的延长，VBL溶液在432nm处荧光强度下降；而在267nm处有所增强，低浓度溶液对日光照射更加敏感。1mg／1在避光时测得吸光度为0.449，而在日光照射15分钟后，其吸光度下降至0.141，证明日光照射使VBL溶液中的顺式异构体增加。
|
| 关 键 词： | 荧光增白剂VBL 顺-反异构 紫外光谱 荧光强度 |
| 文章编号： | 1672-1179(2004)05-0259-2 |
| 修稿时间： | 2004年7月1日 |
A Study on the Effect of Sunlight Radiation on Fluorescent Brightening Agent VBL |
| |
| ZHONG Hong-bing LU Rong-wen.A Study on the Effect of Sunlight Radiation on Fluorescent Brightening Agent VBL[J].Ranliao yu Ranse,2004,41(5):259-261. |
| |
| Authors: | ZHONG Hong-bing LU Rong-wen |
| |
| Abstract: | The light stability of fluorescent brightening agent VBL in solution was investigated by ultraviolet and fluorescence spectrometry respectively under the radiation of sunlight. The results showed that the fluorescence intensity of VBL in solution at 432nm decreased and at 267nm increased with the increase of radiation time, low concentration solution was even more sensitive to sunlight. The absorption for 1mg/ L VBL solution was 0.449 without light radiation, while the absorption decreased to 0.141 after being radiated for 15minutes, this indicated that the amount of cis-isomer of VBL in solution would have been increased by sunlight radiation. |
| |
| Keywords: | fluorescent brightening agent VBL cis-trans isomerism ultraviolet spectrometry fluorescence spectrometry |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
