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4500-F¯ Fluoride

4500-F¯ Fluoride   (120.5 kB)

Approved by SM Committee: 1997

[E] - EPA Approved

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Description

The introduction to this section (A) discusses the merits of the three methods given for fluoride determination. The introduction also discusses sampling storage and the need for preliminary treatment. Preliminary distillation is described in detail in B. Three methods are then given for the determination of fluoride. Method C describes the ion-selective electrode method, which is suitable for fluoride concentrations from 0.1 to more than 10 mg/L. The SPADNS method (D) has an analytical range of 0 to 1.40 mg F¯/L with virtually instantaneous color development. Fluoride may also be determined by the automated complexone method (E). Ion-selective electrode flow injection analysis (G) is also discussed. This section is reprinted from the 20th Edition. Another method useful for this analyte is capillary ion electrophoresis (4140).

Methods

[E] [R] [N] Product
       A. Introduction
[E]      B. Preliminary Distillation Step
[E]      C. Ion-Selective Electrode Method
[E]      D. SPADNS Method
[E]      E. Complexone Method
       F. Reserved
       G. Ion-Selective Electrode Flow Injection Analysis

Companion Products

[E] [R] [N] Product Price  
  [R]   4020 Quality Assurance/Quality Control $0.00
[E] [R] [N] 4110 Determination of Anions by Ion Chromatography $69.00
      4130 Inorganic Nonmetals by Flow Injection Analysis $0.00