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Comparative Study on Determination of Fluoride in Water by High-resolution Continuum Source Atomic Absorption Spectrometry and Ion Selective Electrode
Pages: 37-40
Year: Issue:  11
Journal: Guangdong Trace Elements Science

Keyword:  HR-CS-AASISEfluorine;
Abstract: Objective To compare the high-resolution continuum source atomic absorption spectrometry( HR-CS-AAS) method with ion selective electrode( ISE) method for determination of F-in water.Methods ISE method and HR-CS-AAS method were used separately to test fluoride in water and the characteristics of the two methods were compared. Result In ISE method,the limit of detection was 0. 10 mg / L; the RSD was 2. 23% ~ 4. 32%; the average recovery rate was 96. 0% ~ 104. 0%. In HR-CS-AAS method,the limit of detection was 0. 04 mg / L; the RSD was 1. 7% ~ 3. 6%; the average recovery rate was 96. 5% ~ 106. 0%. The fluoride content in 24 water samples was detected using the ISE method and HR-CS-AAS method. The results as matched data were tested with t-test,indicated that there is statistical significance( P = 0. 006 1). Conclusion The determination of F-using HR-CS-AAS is suitable for determination of fluoride in water.
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