ISO 16588:2002
Water quality — Determination of six complexing agents — Gas-chromatographic method
This International Standard specifies a method for the determination of the following six water-soluble organic complexing agents in the concentration range from 0,5 micrograms/litre to 200 micrograms/litre:
- EDTA (ethylenedinitrilotetraacetic acid);
- NTA (nitrilotriacetic acid);
- DTPA (diethylenetrinitrilopentaacetic acid);
- MGDA (methylglycinediacetic acid);
- ß-ADA (ß-alaninediacetic acid);
- 1,3-PDTA (1,3-propylenedinitrilotetraacetic acid).
The method is applicable to drinking, ground, surface and waste water.
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TitlePage - Water quality— Determination of six complexing agents— Gas-chromatographic method
TableofContent - Contents Page
Foreword - Foreword
Introduction - Introduction
Scope - 1 Scope
NormativeReference - 2 Normative references
Clause1 - 3 Principle
Clause1 - 4 Interferences
Clause1 - 5 Reagents
UntitledSubclause2 - 5.1 Deionized water
UntitledSubclause2 - 5.2 Gases for gas chromatography and mass spectrometry
UntitledSubclause2 - 5.3 Nitrogen
UntitledSubclause2 - 5.4 n
UntitledSubclause2 - 5.5 Acetyl chloride
UntitledSubclause2 - 5.6 Esterification reagent
UntitledSubclause2 - 5.7 Reference compounds
UntitledSubclause3 - 5.7.1 Nitrilotriacetic acid (NTA)
UntitledSubclause3 - 5.7.2 Ethylenedinitrilotetraacetic acid (EDTA)
UntitledSubclause3 - 5.7.3 Diethylenetrinitrilopentaacetic acid (DTPA)
UntitledSubclause3 - 5.7.4 Methylglycinediacetic acid (MGDA)
UntitledSubclause3 - 5.7.5 b-Alaninediacetic acid (b-ADA)
UntitledSubclause3 - 5.7.6 1,3-Propylenedinitrilotetraacetic acid (1,3-PDTA)
UntitledSubclause3 - 5.7.7 13
UntitledSubclause2 - 5.8 Control standards and internal standard
UntitledSubclause3 - 5.8.1 Octadecanenitrile
UntitledSubclause3 - 5.8.2 Heptadecanenitrile
UntitledSubclause3 - 5.8.3 1-Chlorotetradecane
UntitledSubclause3 - 5.8.4 1,2-Propylenedinitrilotetraacetic acid (1,2-PDTA)
UntitledSubclause2 - 5.9 Formaldehyde
UntitledSubclause2 - 5.10 n
UntitledSubclause2 - 5.11 Sodium sulfate
UntitledSubclause2 - 5.12 Sodium hydroxide solution
UntitledSubclause2 - 5.13 Hydrochloric acid
UntitledSubclause2 - 5.14 Hydrochloric acid
UntitledSubclause2 - 5.15 Formic acid
UntitledSubclause2 - 5.16 Stock solutions for calibration purposes
UntitledSubclause2 - 5.17 Intermediate stock solutions
UntitledSubclause2 - 5.18 Nitrile control standard
UntitledSubclause2 - 5.19 1-Chlorotetradecane control standard
Clause1 - 6 Apparatus
UntitledSubclause2 - 6.1 Glassware
UntitledSubclause2 - 6.2 Ultrasonic bath
UntitledSubclause2 - 6.3 Heating device
UntitledSubclause2 - 6.4 Equipment for passing an adjustable flow of nitrogen over the surface...
UntitledSubclause2 - 6.5 Rotary evaporator
UntitledSubclause2 - 6.6 Heating block
UntitledSubclause2 - 6.7 Pipettes
UntitledSubclause2 - 6.8 Disposable vials with PTFE-lined septa
UntitledSubclause2 - 6.9 pHmeter
UntitledSubclause2 - 6.10 Beakers
UntitledSubclause2 - 6.11 Gas chromatograph with mass-spectrometric detector
UntitledSubclause2 - 6.12 Gas chromatograph with nitrogen-sensitive (NPD) detector
UntitledSubclause2 - 6.13 Capillary column for gas chromatography
UntitledSubclause2 - 6.14 Microlitre syringes
UntitledSubclause2 - 6.15 Volumetric flasks
UntitledSubclause2 - 6.16 Measuring cylinders
UntitledSubclause2 - 6.17 Conductivity-measuring device
UntitledSubclause2 - 6.18 Microseparator
Clause1 - 7 Sampling and sample stabilization
Clause1 - 8 Procedure
Subclause2 - 8.1 Sample pretreatment
Subclause2 - 8.2 Esterification of the sample
Subclause2 - 8.3 Gas-chromatographic determination
Subclause2 - 8.4 Identification of the complexing agents
Subclause3 - 8.4.1 General
Subclause3 - 8.4.2 Identification of complexing agents using a nitrogen-sensitive detector
Subclause3 - 8.4.3 Identification of complexing agents using a mass-spectrometric detector
Subclause2 - 8.5 Blank determination
Clause1 - 9 Calibration
Subclause2 - 9.1 Preparation of calibration solutions
Subclause2 - 9.2 Calibration with internal standard or control standard
Subclause2 - 9.3 Calculation
Clause1 - 10 Expression of results
Clause1 - 11 Test report
AnnexInformative - Examples of columns, chromatograms and mass spectra
Clause1 - A.1 Examples of columns
Clause1 - A.2 Example of a chromatogram
Clause1 - A.3 Examples of mass spectra
Bibliography - Bibliography
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TitlePage - Water quality— Determination of six complexing agents— Gas-chromatographic method
TableofContent - Contents Page
Foreword - Foreword
Introduction - Introduction
Scope - 1 Scope
NormativeReference - 2 Normative references
Clause1 - 3 Principle
Clause1 - 4 Interferences
Clause1 - 5 Reagents
UntitledSubclause2 - 5.1 Deionized water
UntitledSubclause2 - 5.2 Gases for gas chromatography and mass spectrometry
UntitledSubclause2 - 5.3 Nitrogen
UntitledSubclause2 - 5.4 n
UntitledSubclause2 - 5.5 Acetyl chloride
UntitledSubclause2 - 5.6 Esterification reagent
UntitledSubclause2 - 5.7 Reference compounds
UntitledSubclause3 - 5.7.1 Nitrilotriacetic acid (NTA)
UntitledSubclause3 - 5.7.2 Ethylenedinitrilotetraacetic acid (EDTA)
UntitledSubclause3 - 5.7.3 Diethylenetrinitrilopentaacetic acid (DTPA)
UntitledSubclause3 - 5.7.4 Methylglycinediacetic acid (MGDA)
UntitledSubclause3 - 5.7.5 b-Alaninediacetic acid (b-ADA)
UntitledSubclause3 - 5.7.6 1,3-Propylenedinitrilotetraacetic acid (1,3-PDTA)
UntitledSubclause3 - 5.7.7 13
UntitledSubclause2 - 5.8 Control standards and internal standard
UntitledSubclause3 - 5.8.1 Octadecanenitrile
UntitledSubclause3 - 5.8.2 Heptadecanenitrile
UntitledSubclause3 - 5.8.3 1-Chlorotetradecane
UntitledSubclause3 - 5.8.4 1,2-Propylenedinitrilotetraacetic acid (1,2-PDTA)
UntitledSubclause2 - 5.9 Formaldehyde
UntitledSubclause2 - 5.10 n
UntitledSubclause2 - 5.11 Sodium sulfate
UntitledSubclause2 - 5.12 Sodium hydroxide solution
UntitledSubclause2 - 5.13 Hydrochloric acid
UntitledSubclause2 - 5.14 Hydrochloric acid
UntitledSubclause2 - 5.15 Formic acid
UntitledSubclause2 - 5.16 Stock solutions for calibration purposes
UntitledSubclause2 - 5.17 Intermediate stock solutions
UntitledSubclause2 - 5.18 Nitrile control standard
UntitledSubclause2 - 5.19 1-Chlorotetradecane control standard
Clause1 - 6 Apparatus
UntitledSubclause2 - 6.1 Glassware
UntitledSubclause2 - 6.2 Ultrasonic bath
UntitledSubclause2 - 6.3 Heating device
UntitledSubclause2 - 6.4 Equipment for passing an adjustable flow of nitrogen over the surface...
UntitledSubclause2 - 6.5 Rotary evaporator
UntitledSubclause2 - 6.6 Heating block
UntitledSubclause2 - 6.7 Pipettes
UntitledSubclause2 - 6.8 Disposable vials with PTFE-lined septa
UntitledSubclause2 - 6.9 pHmeter
UntitledSubclause2 - 6.10 Beakers
UntitledSubclause2 - 6.11 Gas chromatograph with mass-spectrometric detector
UntitledSubclause2 - 6.12 Gas chromatograph with nitrogen-sensitive (NPD) detector
UntitledSubclause2 - 6.13 Capillary column for gas chromatography
UntitledSubclause2 - 6.14 Microlitre syringes
UntitledSubclause2 - 6.15 Volumetric flasks
UntitledSubclause2 - 6.16 Measuring cylinders
UntitledSubclause2 - 6.17 Conductivity-measuring device
UntitledSubclause2 - 6.18 Microseparator
Clause1 - 7 Sampling and sample stabilization
Clause1 - 8 Procedure
Subclause2 - 8.1 Sample pretreatment
Subclause2 - 8.2 Esterification of the sample
Subclause2 - 8.3 Gas-chromatographic determination
Subclause2 - 8.4 Identification of the complexing agents
Subclause3 - 8.4.1 General
Subclause3 - 8.4.2 Identification of complexing agents using a nitrogen-sensitive detector
Subclause3 - 8.4.3 Identification of complexing agents using a mass-spectrometric detector
Subclause2 - 8.5 Blank determination
Clause1 - 9 Calibration
Subclause2 - 9.1 Preparation of calibration solutions
Subclause2 - 9.2 Calibration with internal standard or control standard
Subclause2 - 9.3 Calculation
Clause1 - 10 Expression of results
Clause1 - 11 Test report
AnnexInformative - Examples of columns, chromatograms and mass spectra
Clause1 - A.1 Examples of columns
Clause1 - A.2 Example of a chromatogram
Clause1 - A.3 Examples of mass spectra
Bibliography - Bibliography