| 双波长比值法测定苯二酚异构体的含量 |
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| 引用本文： | 杜建中,梁风颜,谭国兵. 双波长比值法测定苯二酚异构体的含量[J]. 福建分析测试, 2009, 18(2): 21-25 |
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| 作者姓名： | 杜建中 梁风颜 谭国兵 |
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| 作者单位： | 湛江师范学院化学科学与技术学院,广东,湛江,524048;湛江师范学院化学科学与技术学院,广东,湛江,524048;湛江师范学院化学科学与技术学院,广东,湛江,524048 |
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| 摘 要： | 利用双波长比值光谱法测定苯二酚异构体的含量。依据邻、间、对苯二酚三组分的比值光谱特征,以对苯二酚为参比组分,选择224nm、277nm作为测定邻苯二酚的波长;以邻苯二酚作为参比组分,选择231nm、284nm作为测定间苯二酚的波长;以间苯二酚作为参比组分,选择220nm、231nm作为测定对苯二酚的波长,测定邻、间、对苯二酚混合样品中三组分含量。邻苯二酚在0.5mg/L～80mg/L,间苯二酚在0.3mg/L～120mg/L,对苯二酚0.4mg/L～80mg/L浓度范围内线性关系良好,平均回收率分别为99.2%,102.8%和101.7%。该方法具有测定波长少、光谱"分离"能力强、计算简单、易于推广等特点。
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| 关 键 词： | 双波长比值法 邻苯二酚 间苯二酚 对苯二酚 |
Determination of o-Dihydroxybenzene,m-Dihydroxybenzene and p-Dihydroxybenzene by Dual-wavelength Ratio Spectrometric |
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| DU Jian-zhong,LIANG Feng-yan,TAN Guo-bing. Determination of o-Dihydroxybenzene,m-Dihydroxybenzene and p-Dihydroxybenzene by Dual-wavelength Ratio Spectrometric[J]. Fujian Anal Ysis & Testing, 2009, 18(2): 21-25 |
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| Authors: | DU Jian-zhong LIANG Feng-yan TAN Guo-bing |
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| Affiliation: | Chemistry Science and technology School;Zhanjiang Normal University;Zhanjiang;guangdong 524048;China |
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| Abstract: | According to the feature of ration the o-dihydroxybenzene m-dihydroxybenzene and p-dihydroxybenzene,If taking p-dihydroxybenzene as disturbance component,224nm,277 nm were chosen as the determining wavelengths of the o-dihydroxybenzene.If taking o-dihydroxybenzene as disturbance component,231 nm,284 nm were chosen as the determining wavelengths of the m-dihydroxybenzene.And if taking m-dihydroxybenzene as disturbance component,220 nm and 231 nm were chosen as the determining wavelengths of the p-dihydroxybe... |
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| Keywords: | Dual-wavelengthration spectrometry o-dihydroxybenzene m-dihydroxybenzene p-dihydroxybenzene |
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