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荷移分光光度法测定双酚S的研究 预览 被引量:1

Determination of Bisphenol-S by Charge-transfer Ultraviolet Spectrophotometry
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摘要 该文研究了电子供体硼砂与双酚S荷移络合物的光谱性质,建立了简单快速测定双酚S(BPS)含量的荷移紫外分光光度法。结果表明:荷移络合物的最大吸收波长为291 nm,表观摩尔吸光系数ε为1.92×10^4L·mol^-1·cm^-1。双酚S的质量浓度在0.7-7 mg/L范围内符合比尔定律,相关系数为0.999 6,检出限为0.195 mg/L。该方法用于测定塑料中双酚S的含量,加标回收率为99.8%-100.4%,相对标准偏差不大于0.5%。 Based on the charge-transfer reaction between bisphenol-S(BPS) and borax,a simple and rapid method was developed for the determination of BPS by ultraviolet spectrophotometric method. The results indicated that in water medium,BPS could form charge-transfer complex with borax,and its maximum absorption wavelength was 291 nm. The apparent molar absorptivity was 1. 92 × 10^4 L·mol^-1·cm^-1. Beers law was obeyed for BPS in the concentration range of 0. 7-7 mg/L. The correlation coefficient was 0. 999 6,and the detection limit was 0. 195 μg/mL. The proposed method was applied in the determination of BPS in samples with satisfactory results. The recoveries for BPS were in the range of 99. 8%-100. 4% with RSDs(n = 5) not more than 0. 5%.
作者 刘宝亮 张晓敏 LIU Bao-liang,ZHANG Xiao-min(College of Mathematical Physics and Chemical Engineering, Changzhou Institute of Technology , Changzhou 213032, China)
出处 《分析测试学报》 CSCD 北大核心 2018年第5期610-614,共5页 Journal of Instrumental Analysis
基金 国家自然科学基金青年基金项目(51704042) 常州工学院科研基金项目(YN1210)
关键词 双酚S(BPS) 硼砂 荷移 紫外分光光度法 bisphenol -S (BPS ) borax charge-transfer reaction UV
作者简介 通讯作者:刘宝亮,博士,副教授,研究方向:生物质热化学转化利用和植物有效成分提取,E-mail:lbliang1977@163.com
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