ISO 18857-1:2005 PDF

Water quality — Determination of selected alkylphenols — Part 1: Method for non-filtered samples using liquid-liquid extraction and gas chromatography with mass selective detection

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Title (English):

ISO 18857-1:2005

Water quality — Determination of selected alkylphenols — Part 1: Method for non-filtered samples using liquid-liquid extraction and gas chromatography with mass selective detection

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 18
Publication date:: January 12, 2005
Edition:: ISO IS 18857 edition 1 version 1
ICS:: 13.060.50

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Description (English):

ISO 18857-1:2005 specifies a method for the determination of 4-nonylphenol (mixture of isomers) and 4-(1,1,3,3-tetramethylbutyl)phenol in non-filtered samples of drinking water, ground water and surface water. The method is applicable in a concentration range from 0,005 micrograms per litre to 0,2 micrograms per litre for 4-(1,1,3,3-tetramethylbutyl)phenol and from 0,02 micrograms per litre to 0,2 micrograms per litre for 4-nonylphenol (mixture of isomers). Depending on the matrix, the method is also applicable to waste water containing the analyzed compounds in the concentration range from 0,1 micrograms per litre to 50 micrograms per litre. Higher concentrations can be measured after appropriate dilution of the sample.

Technical details

Technical committee: ISO/TC 147/SC 2 - Physical, chemical and biochemical methods
SKU: ISO 18857-1:2005

Abstract

Overview

ISO 18857-1:2005 - Water quality: Determination of selected alkylphenols (Part 1) specifies a validated laboratory procedure for measuring 4-nonylphenol (mixture of isomers) and 4-(1,1,3,3‑tetramethylbutyl)phenol in non‑filtered water samples. The method uses liquid–liquid extraction (LLE) with toluene, optional silica clean‑up, concentration and analysis by gas chromatography coupled with mass selective detection (GC‑MS). It is intended for drinking water, groundwater and surface water, with extended applicability to wastewater after appropriate handling.

Key topics and technical requirements

Analytes covered: 4‑nonylphenol (isomer mixture) and 4‑(1,1,3,3‑tetramethylbutyl)phenol.
Concentration ranges:
- Drinking/ground/surface water: 4‑(1,1,3,3‑tetramethylbutyl)phenol - 0.005 to 0.2 µg/L; 4‑nonylphenol - 0.02 to 0.2 µg/L.
- Wastewater (matrix dependent): ~0.1 to 50 µg/L (higher concentrations by dilution).
Sampling & preservation: Use glass bottles, acidify to pH 2, refrigerate (2–5 °C) and analyse preferably within 2 weeks. Avoid plastic contact to prevent contamination by alkylphenol‑containing polymers.
Extraction & clean‑up: Add an internal standard, extract sample directly in the collection bottle with toluene (LLE), dry (Na2SO4), evaporate to a small volume; apply silica column clean‑up where required.
Instrumental analysis: GC with capillary column and MS detection (electron ionization, selected ions) for identification (retention time + ion ratios) and quantification using an internal standard and daily response-factor checks.
Quality control: Use reagent blanks, recovery checks, and control of contamination sources (reagents, glassware, septa). Use grade‑1 water for preparation of blanks and standards.

Applications and users

Environmental monitoring laboratories testing river, lake and groundwater for endocrine‑active alkylphenols.
Drinking water utilities performing compliance and source‑water screening.
Wastewater treatment operators assessing influent/effluent alkylphenol loads (with adjusted calibration ranges).
Regulatory bodies, consultants and academic researchers studying occurrence, fate and risk of alkylphenols. Practical value: the method provides a reproducible GC‑MS workflow with defined limits of quantification and sample handling steps to minimize contamination and ensure reliable trace‑level measurement.

Related standards

ISO 18857‑2 (Part 2): method for filtered samples using solid‑phase extraction (SPE) and GC‑MS.
ISO 5667 series: sampling guidance (design, techniques, preservation).
ISO 3696: water for analytical laboratory use (grade 1).

Keywords: ISO 18857-1:2005, water quality, alkylphenols, 4-nonylphenol, 4-(1,1,3,3-tetramethylbutyl)phenol, liquid-liquid extraction, GC-MS, environmental monitoring, µg/L.

Related standards

Standards mentioned in the description

Abstract

Overview

Key topics and technical requirements

Analytes covered: 4‑nonylphenol (isomer mixture) and 4‑(1,1,3,3‑tetramethylbutyl)phenol.
Concentration ranges:
- Drinking/ground/surface water: 4‑(1,1,3,3‑tetramethylbutyl)phenol - 0.005 to 0.2 µg/L; 4‑nonylphenol - 0.02 to 0.2 µg/L.
- Wastewater (matrix dependent): ~0.1 to 50 µg/L (higher concentrations by dilution).
Sampling & preservation: Use glass bottles, acidify to pH 2, refrigerate (2–5 °C) and analyse preferably within 2 weeks. Avoid plastic contact to prevent contamination by alkylphenol‑containing polymers.
Extraction & clean‑up: Add an internal standard, extract sample directly in the collection bottle with toluene (LLE), dry (Na2SO4), evaporate to a small volume; apply silica column clean‑up where required.
Instrumental analysis: GC with capillary column and MS detection (electron ionization, selected ions) for identification (retention time + ion ratios) and quantification using an internal standard and daily response-factor checks.
Quality control: Use reagent blanks, recovery checks, and control of contamination sources (reagents, glassware, septa). Use grade‑1 water for preparation of blanks and standards.

Applications and users

Environmental monitoring laboratories testing river, lake and groundwater for endocrine‑active alkylphenols.
Drinking water utilities performing compliance and source‑water screening.
Wastewater treatment operators assessing influent/effluent alkylphenol loads (with adjusted calibration ranges).
Regulatory bodies, consultants and academic researchers studying occurrence, fate and risk of alkylphenols. Practical value: the method provides a reproducible GC‑MS workflow with defined limits of quantification and sample handling steps to minimize contamination and ensure reliable trace‑level measurement.

Related standards

ISO 18857‑2 (Part 2): method for filtered samples using solid‑phase extraction (SPE) and GC‑MS.
ISO 5667 series: sampling guidance (design, techniques, preservation).
ISO 3696: water for analytical laboratory use (grade 1).

Keywords: ISO 18857-1:2005, water quality, alkylphenols, 4-nonylphenol, 4-(1,1,3,3-tetramethylbutyl)phenol, liquid-liquid extraction, GC-MS, environmental monitoring, µg/L.

ISO 18857-1:2005 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Applications and users

Related standards

Related standards

Abstract

Overview

Key topics and technical requirements

Applications and users

Related standards

Related standards

Water quality — Determination of selected alkylphenols — Part 2: Gas chromatographic-mass spectrometric deter…

Water quality - Sampling - Part 3: Preservation and handling of water samples (ISO 5667-3:2024)

Water for analytical laboratory use. Specification and test methods.