摘要
介绍了用紫外光谱测定水中离子液体含量的方法。测定了7种离子液体([C4mim][Cl]、[C4mim][BF4]、[C4mim][PF6]、[C5mim][Cl]、[C6mim][BF4]、[C8mim][Cl]和[C8mim][BF4])的最大吸收波长,并且绘制了校准曲线。结果表明,在实验试剂用量范围内,离子液体在波长211nm附近的吸光度与浓度呈线性关系,其线性相关系数均大于0.999。说明用紫外光谱法检测水中离子液体含量简单、快速且测定结果准确可靠。
The seven kinds of ionic liquids in waste water were determined by UV-spectrum. The maximum absorption wavelength was measured and the correlation coefficient of standard curve also reached as 211nm with the correspondence coefficient of 0. 999 within the range of reagent dosage under experimental conditions the method is simple, feasible and reliable.
出处
《光谱实验室》
CAS
CSCD
2008年第2期114-117,共4页
Chinese Journal of Spectroscopy Laboratory
基金
教育部"新世纪优秀人才支持计划"(NCET-06-0088)
石油科技中青年创新基金(04E7031)
国家自然科学基金项目(40673043和20576073)
