燃料电池汽车用燃料氢气中溴离子的分光光度计法测定
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摘要
提出采用酚红分光光度法对燃料电池汽车用氢气中溴离子进行测定,具有较好的灵敏度和重现性。该方法的线性范围为0. 011～0. 80μg/m L,检出限为0. 011μg/m L。同时应用该检测体系对四种不同工艺过程生产的燃料电池汽车用氢气中溴离子的含量进行了测定。当采样体积为200 L时,最低检出浓度为0. 0050 mg/m3。能符合国家标准及行业标准中燃料氢气的技术指标,具有广泛的适用性及普及性。
In this paper,the determination of bromide ions in fuel hydrogen for automotive fuel cell by phenolic spectrophotometry is proposed,which has good sensitivity and reproducibility. The linear range of this method is 0. 011 ～ 0. 80 μg/m L. The detection limit is 0. 011 μg/m L. At the same time,the content of bromide ion in hydrogen of fuel cell vehicles produced by four different processes was determined by this detection system. When the sample volume is 200 L,the minimum detection limit is 0. 0050 mg/m3. It meets the technical specifications of fuel hydrogen in national and industrial standards,and has wide applicability and popularity.
In this paper,the determination of bromide ions in fuel hydrogen for automotive fuel cell by phenolic spectrophotometry is proposed,which has good sensitivity and reproducibility. The linear range of this method is 0. 011 ～ 0. 80 μg/m L. The detection limit is 0. 011 μg/m L. At the same time,the content of bromide ion in hydrogen of fuel cell vehicles produced by four different processes was determined by this detection system. When the sample volume is 200 L,the minimum detection limit is 0. 0050 mg/m3. It meets the technical specifications of fuel hydrogen in national and industrial standards,and has wide applicability and popularity.
引文
[1]侯明,衣宝廉.燃料电池技术发展现状与展望[J].电化学,2012,18(1):1-13.
[2]GB/T 23845—2009无机化工产品中溴化物测定通用方法[S].
[3]沈敏.卤水中溴离子的测定——酚红分光光度法[J].中国井矿盐,1993(5):44-45.
[4]陈向楠.水溶液中溴离子的测定方法研究[D].青岛:中国海洋大学,2013.
[5] IUPAC. IUPAC Compendium of Analytical Nomenclature[S],1998.
[2]GB/T 23845—2009无机化工产品中溴化物测定通用方法[S].
[3]沈敏.卤水中溴离子的测定——酚红分光光度法[J].中国井矿盐,1993(5):44-45.
[4]陈向楠.水溶液中溴离子的测定方法研究[D].青岛:中国海洋大学,2013.
[5] IUPAC. IUPAC Compendium of Analytical Nomenclature[S],1998.