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阳离子型微乳液对铅-二溴羟基苯基 荧光酮增敏作用的研究

作  者:
付佩玉;吕兆萍
单  位:
山东建材学院应化系
关键词:
铅;微乳液;二溴羟基苯基荧光酮;测定
摘  要:
研究了在溴化十六烷基三甲铵/正戊醇/正庚烷/水组成的阳离子型微乳液介质中铅与二溴羟基苯基荧光酮(DBH-PF)的显色。在 PH9.5 NH3-NH4Cl缓冲体系中, Pb2+与 DBH-PF形成 1:2紫红色配合物,=1.01105L/mol/Cm, pb2+浓度在0-9 g/25ml范围内服从比尔定律/方法用于牙膏、人发以及粮食中铅的测定,结果令人满意。
译  名:
Study on Senstized Reaction of Cationic-Microemulsion on the Plumbum-2,3,7-Trihydrioxy-9 Dibromo-Hydroxyphenylftuorone
作  者:
Fu Peiyu et al
关键词:
Plumbum Microemulsion 2,3.7-trihydroxy-9-dibromo-hydroxyphenylftuorone Determination
摘  要:
The senstized reaction of cationic-microemulsion CTMAB-n-C5H11.OH-n-C7H16-H2O as a medium on the Plumbum2.3.7-trihydroxy-q-dibromo-hydroxyphenylftuorone(DBH-PF) complex was studied.In the medium of NH,-NH.CI (pHg.5 ) plumbum reacts with DBH-PF and forms a 1 :2 complex The maximum absorption is at 570 nm and the molar absorptivity is 1 .01 x 1 05L/mol/cm. Beer's law is obeyed in the range of0-9 g/L for pb2+.The method has been applied to the determination of plumbum in the toothpaste. hair and food with satisfactory results.

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