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Fluoride Determination in Water: An Optimum Buffer System for Use With the Flouride-Selective Electrode

 

作者: K. Nicholson,   E.J. Duff,  

 

期刊: Analytical Letters  （Taylor Available online 1981）
卷期: Volume 14, issue 12  

页码: 887-912

 

ISSN:0003-2719

 

年代: 1981

 

DOI:10.1080/00032718108055488

 

出版商: Taylor & Francis Group

 

关键词: fluoride-selective electrode;interference limit;buffer system;buffer stability;decomplexing time

 

数据来源: Taylor

 

摘要:

The departure from linear response which often occurs at dilute fluoride concentrations of the calibration curve reduces the sensitivity of the electrode. The linear portion of the standard curve may be extended to lower fluoride levels by dilution of the buffer itself. TISAB III M. tri-Ammonium citrate (TAC) is the superior of the eleven buffer systems examined in terms of masking ability. Of the potentially interfering species studied, only A1 and Mg pose interference problems.

 

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