ASTM D4327-11
Standard Test Method for Anions in Water by Suppressed Ion Chromatography

Standard No.

ASTM D4327-11

Release Date

2011

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D4327-17

Latest

ASTM D4327-17

Scope

Ion chromatography provides for both qualitative and quantitative determination of seven common anions, F⁻, Cl⁻, NO₂⁻, HPO₄⁻², Br⁻, NO₃⁻, and SO₄⁻², in the milligram per liter range from a single analytical operation requiring only a few milliliters of sample and taking approximately 10 to 15 min for completion. Additional anions, such as carboxylic acids, can also be quantified.

Note 28212;This test method may be used to determine fluoride if its peak is in the water dip by adding one mL of eluent (at 100× the concentration in 8.3) to all 100-mL volumes of samples and standards to negate the effect of the water dip. (See 6.3, and also see 6.4.) The quantitation of unretained peaks should be avoided. Anions such as low molecular weight organic acids (formate, acetate, propionate, etc.) that are conductive coelute with fluoride and would bias fluoride quantitation in some drinking waters and most wastewaters. The water dip can be further minimized if measures are taken to remove carbonic acid which remain in the eluent after suppression using carbonate based eluents. There is no water dip if hydroxide eluents are used.

Anion combinations such as Cl⁻/Br⁻ and NO₂⁻/NO₃⁻, which may be difficult to distinguish by other analytical methods, are readily separated by ion chromatography.

1.1 This test method covers the sequential determination of fluoride, chloride, nitrite, ortho-phosphate, bromide, nitrate, and sulfate ions in water by suppressed ion chromatography.

Note 18212;Order of elution is dependent upon the column used; see Fig. 1.

ASTM D4327-11 Referenced Document

• ASTM D1066 Standard Practice for Sampling Steam
• ASTM D1129 Standard Terminology Relating to Water
• ASTM D1193 Standard Specification for Reagent Water
• ASTM D2777 Standard Practice for Determination of Precision and Bias of Applicable Methods of Committee D-19 on Water
• ASTM D3370 Standard Practices for Sampling Water from Closed Conduits
• ASTM D5810 Standard Guide for Spiking into Aqueous Samples 
• ASTM D5847 Standard Practice for Writing Quality Control Specifications for Standard Test Methods for Water Analysis

ASTM D4327-11 history

• 2017 ASTM D4327-17 Standard Test Method for Anions in Water by Chemically Suppressed Ion Chromatography
• 2011 ASTM D4327-11 Standard Test Method for Anions in Water by Suppressed Ion Chromatography
• 2003 ASTM D4327-03 Standard Test Method for Anions in Water by Chemically Suppressed Ion Chromatography
• 1997 ASTM D4327-97 Standard Test Method for Anions in Water by Chemically Suppressed Ion Chromatography