陈慧敏. Rapid determination of high concentration benzene of indoor air using ultraviolet spectrophotometry based on ionic liquids[J]. CIESC Journal, 2011, (S2): 147-149.
陈慧敏. Rapid determination of high concentration benzene of indoor air using ultraviolet spectrophotometry based on ionic liquids[J]. CIESC Journal, 2011, (S2): 147-149.DOI: 10.3969/j.issn.0438-1157.2011.z2.026.
A novel method for the rapid determination of high concentration benzene indoor air using ionic liquid-based ultraviolet spectrophotometry(UV)has been developed. The effects of different extraction conditions(such as ionic liquids support,ionic liquids volume,enrichment time,extraction temperature,extraction time and so on)on extraction efficiency are investigated. The optimal conditions are as follows:absorbent cotton for carrier,enrichment time 1 h,extraction temperature 20℃,extraction time 10 min,extraction volume of [BMIm]NTf2 30μl. The results show better enrichmennt effects for high concentration benzene vapor when using ultraviolet spectrophotometry for detection. This method is simple,fast,convenient and easy for detection. Besides,the cost is quite low. Satisfactory results can be obtained for high concentration benzene determination.