ISO 21264:2019
Surface active agents — Detergents — Determination of alkylphenol ethoxylates
This document provides a method for the determination of alkylphenol ethoxylates (APEOs) in surfactants using high performance liquid chromatography (HPLC) and detected with diode array detector (DAD) or fluorescence detector (FLD).
This method is appropriate for the detection and quantification of APEOs in surfactants.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents and materials
6 Apparatus
7 Procedure
7.1 Standard preparation
7.2 Sample preparation
7.3 Analysis
7.3.1 Chromatographic condition
7.3.2 Qualitative determination
7.3.3 Calibration curve
7.3.4 Quantitative determination
8 Expression of results
8.1 Calculation
8.2 Evaluation
8.3 Precision
8.3.1 Repeatability
8.3.2 Reproducibility limit
9 Test report
Annex A (informative) Chromatogram of alkylphenol ethoxylates (APEOs)
Annex B (informative) Identification test
Annex C (informative) Statistical data from the ring carried out
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents and materials
6 Apparatus
7 Procedure
7.1 Standard preparation
7.2 Sample preparation
7.3 Analysis
7.3.1 Chromatographic condition
7.3.2 Qualitative determination
7.3.3 Calibration curve
7.3.4 Quantitative determination
8 Expression of results
8.1 Calculation
8.2 Evaluation
8.3 Precision
8.3.1 Repeatability
8.3.2 Reproducibility limit
9 Test report
Annex A (informative) Chromatogram of alkylphenol ethoxylates (APEOs)
Annex B (informative) Identification test
Annex C (informative) Statistical data from the ring carried out