| 分光光度法测定日化品中的三氯生 |
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| 引用本文： | 陆慧慧,陶冠红.分光光度法测定日化品中的三氯生[J].光谱实验室,2009,26(3):487-490. |
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| 作者姓名： | 陆慧慧 陶冠红 |
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| 作者单位： | 苏州大学材料与化学化工学部,江苏省苏州市工业园区仁爱路99号,215123 |
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| 摘 要： | 建立了分光光度法测定日化品中三氯生的方法。在酸性条件下,亚硝酸钠和对氨基苯磺酸生成重氮盐,三氯生在碱性条件下与此重氮盐发生偶合反应,形成的黄色偶氮化合物,其在452nm处有最大吸收。三氯生浓度在0.075—30mg/L范围内呈良好的线性关系,检出限为0.075mg/L。本方法成功应用于日化产品中三氯生的测定,与高效液相色谱法相比,结果令人满意。
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| 关 键 词： | 三氯生 日化品 分光光度法 |
Spectrophotometric Determination of Triclosan in Personal Care Products |
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| LU Hui-Hui,TAO Guan-Hong.Spectrophotometric Determination of Triclosan in Personal Care Products[J].Chinese Journal of Spectroscopy Laboratory,2009,26(3):487-490. |
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| Authors: | LU Hui-Hui TAO Guan-Hong |
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| Institution: | College of Chemistry;Chemical Engineering and Materials Science;Soochow University;Suzhou;Jiangsu 215123;P.R.China |
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| Abstract: | A selective spectrophotometric method for the determination of triclosan in personal care products was developed based on the reaction of sodium nitrite with p-aminobenzene sulfonie acid in acidic medium to form diazo salt,with which triclosan further formed an azo compound in alkaline medium. The resulting yellow colored product has a maximum absorption at 452nm. A good linear relationship （r=0. 9999） was obtained in the range 0. 075-30mg/L. A detection limit of 0. 075 mg/L was achieved and the relative standard deviation was 0.24% （n= 11） at 14mg/L of triclosan. The method was applied to the analyses of triclosan in daily chemical products and the results were in good agreement with those obtained by high-performance liquid chromatography. |
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| Keywords: | Triclosan Personal Care Products Spectrophotometry |
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