Development of a new fluorescent probe: 1,3,5,7-tetramethyl-8-(4'-aminophenyl)-4,4-difluoro-4-bora-3a,4a-diaza-s-indacence for the determination of trace nitrite.
Development of a new fluorescent probe: 1,3,5,7-tetramethyl-8-(4'-aminophenyl)-4,4-difluoro-4-bora-3a,4a-diaza-s-indacence for the determination of trace nitrite.
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DOI：
10.1016/s1386-1425(03)00329-9
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发表时间：
2004-03
期刊：
影响因子：
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通讯作者：
Mengling Li;Hong Wang;X. Zhang;Hua‐shan Zhang
中科院分区：
文献类型：
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作者：
Mengling Li;Hong Wang;X. Zhang;Hua‐shan Zhang
研究了一种新的测定痕量亚硝酸根的荧光探针1，3，5，7-tetramethyl-8-(4′-aminophenyl)-4，4-difluoro-4-bora-3a，4a-diaza-s-indacence(TMABODIPY)，其原理是亚硝酸根在酸性溶液中先与TMABODIPY反应，然后在碱性溶液中生成重氮酸盐。该方法具有特异性强、灵敏度高、操作简便等优点。亚硝酸根的线性范围为8-300nmoll−1s，3σ检出限为0.65nmoll−1。该方法已用于饮用水和蔬菜中痕量亚硝酸根的无萃取监测。
A new fluorescent probe, 1,3,5,7-tetramethyl-8-(4′-aminophenyl)-4,4-difluoro-4-bora-3a,4a-diaza-s-indacence (TMABODIPY) has been developed for the determination of trace nitrite in terms of the reaction of nitrite with TMABODIPY first in acidic solution and then in alkaline solution to form diazotate, a stable and highly fluorescent reagent. The method offered the advantage of specificity, sensitivity and simplicity. The linear calibration range for nitrite was 8–300nmoll−1s with a 3σ detection limit of 0.65nmoll−1. The proposed method has been applied to monitor the trace nitrite in drinking water and vegetable without extraction.