ISO 18254-2:2018
Textiles — Method for the detection and determination of alkylphenol ethoxylates (APEO) — Part 2: Method using NPLC
This document specifies the normal phase liquid chromatography (NPLC) separation method for the qualitative and quantitative analysis of extractable alkylphenol ethoxylates (APEO) in textiles and textile products.
This method provides several instrument options for the determination of alkylphenol ethoxylates (APEO) such as normal phase liquid chromatograph with mass spectrometer (NPLC/MS), normal phase liquid chromatograph with fluorescence detector (NPLC/FLD), normal phase liquid chromatograph with charged aerosol detector (NPLC/CAD) and normal phase liquid chromatograph with evaporative light scattering detector (NPLC/ELSD).
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Procedure
7.1 Standard preparation
7.2 Mobile phase for HPLC
7.2.1 Methanol with 0,1 % formic acid and 0,01 % ammonium formate
7.2.2 Acetonitrile with 0,1 % formic acid
7.3 Sample preparation
7.4 Sample extraction
7.5 Sample analysis
8 Calculation and calibration
8.1 Calculation of contribution percentage of each APEO congener in standard solution
8.2 Calculation of concentration of each APEO congener in standard solution
8.3 Calculation of concentration of each APEO congener in sample
8.4 Calculation of total concentration of all APEO congener in sample
8.5 Calibration curve
9 Test report
Annex A (informative) Examples of chromatographic condition
Annex B (informative) Examples of solid phase extraction (SPE) procedure for clean up
Annex C (informative) Results of the interlaboratory test
Annex D (informative) Study of the contribution percentage (mole fraction) of APEO congeners
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Procedure
7.1 Standard preparation
7.2 Mobile phase for HPLC
7.2.1 Methanol with 0,1 % formic acid and 0,01 % ammonium formate
7.2.2 Acetonitrile with 0,1 % formic acid
7.3 Sample preparation
7.4 Sample extraction
7.5 Sample analysis
8 Calculation and calibration
8.1 Calculation of contribution percentage of each APEO congener in standard solution
8.2 Calculation of concentration of each APEO congener in standard solution
8.3 Calculation of concentration of each APEO congener in sample
8.4 Calculation of total concentration of all APEO congener in sample
8.5 Calibration curve
9 Test report
Annex A (informative) Examples of chromatographic condition
Annex B (informative) Examples of solid phase extraction (SPE) procedure for clean up
Annex C (informative) Results of the interlaboratory test
Annex D (informative) Study of the contribution percentage (mole fraction) of APEO congeners
Bibliography