文章摘要
李化茂,贺梅英,李萍,胡正琼,冯若.LUMINOL及其NaOH水溶液的吸收光谱[J].声学技术,2000,(1):23~25
LUMINOL及其NaOH水溶液的吸收光谱
Absorption spectra of the aqueous solutions about luminol and luminol-NaOH
投稿时间:1999-08-16  修订日期:1999-10-11
DOI:
中文关键词: luminol  NaOH  吸收光谱  超声空化  声致荧光
英文关键词: luminol  NaOH  absorption spectrum  ultrasonic cavitation  sonofluorescence.
基金项目:
作者单位
李化茂 吉安师范专科学校物理系, 吉安343009
南京大学近代声学国家重点实验室, 南京210093
中科院红外物理国家重点实验室, 上海200083 
贺梅英 吉安师范专科学校物理系, 吉安343009 
李萍 吉安地区药品检验所化学分析室, 吉安343000 
胡正琼 南京大学近代声学国家重点实验室, 南京210093 
冯若 南京大学近代声学国家重点实验室, 南京210093 
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中文摘要:
      luminol水溶液的吸收光谱有3个吸收带,它们的最大吸收波长分别是220.7nm、294.4nm和351.4nm,超声空化作用后主要呈弱增色效应,但其吸收光谱的基本形状无明显变化。luminol-NaOH水溶液经超声空化作用后也有较弱的增色效应和减色效应,但不论是否经历超声空化作用,其吸收光谱都与luminol水溶液的吸收光谱相似。而在luminol-NaOH-Cu2+水溶液中,如果Cu2+的浓度提高到1.8×10-4mol/l时,则超声空化作用后,其吸收光谱在220~350nm区间出现明显偏离,吸收度有较大增加,但总的吸收光谱的轮廓仍然与luminol水溶液的吸收光谱基本相似。
英文摘要:
      For the aqueous luminol solution, three absorption bands with maximum. adsorption wavelength λmax 220.7、294.4 and 351.5nm respectively have been detected, with the exception of a little hyperchromic effect, the absorption spectrum contour of the solution cavitated by an ultrasound with a frequency of 1.45 MHz has been certificated to be unchanged. The absorption spectra of the aqueous luminol-NaOH solution and its cavitated solution are similar to the that of the aqueous luminol solution, only the cavitated solution appearing a bit of hyper-and hypo-chromic effects.For increasing the concentration of Cu2+ to 1.8×10-4mol/l, the difference in some degree exists in luminol-NaOH-Cu2+ solution and its cavitated solution, that is the absorption degree of the cavitated solution rising up apparently between 220~350nm, however, the absorption spectrum contour of the solution are still similar to the that of the aqueous luminol solution.
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