摘要
研究了试剂２－［（５’－氟２’－砷酸基苯）偶氮］－１，８－二羟基－３，６－萘二磺酸与硼的荧光性能．硼与试剂形成１：２的强荧光配合物，其λｅｘ／λｅｍ＝２３４ ｎｍ／３８０ ｎｍ， Ｂ（Ⅱ）含量在 ０～３６０μｇ／Ｌ范围内呈良好线性关系，检测限为２．０６μｇ／Ｌ，据此建立了测定微量硼的新方法。该方法应用于茶叶、铝合金及粮食等样品中微量硼的测定，结果满意．
In the paper, the fluorescence property of 2-L(2' -arsono-5' -fluorophenyl ) azo]- 1, 8-dihydroxy-3, 6-naphthalenedisulfonic acid(R) and its boron complex are studied. A type of complex BR2 is formed with λex/λem=234 nm/380 nm. A linear relationship of the calibration curve is obtained in the concentration range of 0-360μg/L for boron, and the detection limit is 2. 06 μg/L. This new method can be applied to the determination of boron in tea, aluminium alloy, starch and water with satifactory results.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1997年第12期1413-1416,共4页
Chinese Journal of Analytical Chemistry
关键词
荧光光度法
硼
萘二磺酸衍生物
Fluorimetry, boron, 2-[(2' -arseno-5' -fluorophenyl ) azo ]-1, 8-dihydroxy-3, 6naphthalene-disulfonic acid
