ISO 17943:2016
Water quality — Determination of volatile organic compounds in water — Method using headspace solid-phase micro-extraction (HS-SPME) followed by gas chromatography-mass spectrometry (GC-MS)
Water quality — Determination of volatile organic compounds in water — Method using headspace solid-phase micro-extraction (HS-SPME) followed by gas chromatography-mass spectrometry (GC-MS)
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 43
- Дата публикации:
- 5 апреля 2016 г.
- Издание:
- ISO IS 17943 edition 1 version 1
- ICS:
- 13.060.50
ISO 17943:2016 specifies a method for the determination of volatile organic compounds (see Table 1). This comprises, for example, halogenated hydrocarbons, trihalogenated methanes, gasoline components (such as BTEX, MTBE, and ETBE), naphthalene, 2-ethyl-4-methyl-1,3-dioxolane, and highly odorous substances like geosmin and 2-methylisoborneol in drinking water, ground water, surface water, and treated waste water, by means of headspace solid-phase micro-extraction (HS-SPME) followed by gas chromatography-mass spectrometry (GC-MS). The limit of determination depends on the matrix, on the specific compound to be analysed, and on the sensitivity of the mass spectrometer. For most compounds to which this International Standard applies, it is at least 0,01 µg/l. Validation data related to a concentration range between 0,02 µg/l and 2,6 µg/l have been demonstrated in an interlaboratory trial. Additional validation data derived from standardization work show applicability of the method within a concentration range from 0,01 µg/l to 100 µg/l of individual substances. All determinations are performed on small sample amounts (e.g. sample volumes of 10 ml).
Abstract
Overview - ISO 17943:2016 for VOCs in water
ISO 17943:2016 specifies a laboratory method for determination of volatile organic compounds (VOCs) in water using headspace solid‑phase micro‑extraction (HS‑SPME) followed by gas chromatography‑mass spectrometry (GC‑MS). The scope covers a wide range of analytes (see Table 1 in the Standard) including halogenated hydrocarbons, trihalomethanes, gasoline components (BTEX, MTBE, ETBE), naphthalene and odorous compounds such as geosmin and 2‑methylisoborneol (MIB). Typical matrices are drinking water, groundwater, surface water and treated wastewater. Most compounds have a limit of determination of at least 0.01 µg/L, with validated ranges demonstrated from 0.02–2.6 µg/L (interlaboratory trial) and broader applicability from 0.01–100 µg/L for individual substances. Analyses use small sample volumes (e.g., 10 mL).
Key topics and technical requirements
- Principle: VOCs partition to the headspace and are adsorbed onto an SPME fibre, thermally desorbed in the GC injector, separated by GC and identified/quantified by MS.
- Target analytes: Comprehensive list of volatile compounds (see Table 1) including BTEX, chlorinated solvents, ethers and odourants.
- Sensitivity & validation: Limits depend on matrix and MS sensitivity; method validated across low µg/L ranges with interlaboratory data and additional performance data in Annex F.
- Sample handling: Follow ISO sampling guidance (ISO 5667 series) and use high‑quality water for standards (ISO 3696).
- SPME fibre management: Preconditioning/conditioning of fibres, monitoring of fibre performance and blank measurements to avoid carryover (Annex A, E).
- Calibration & quality control: Use internal standards and calibration of the total procedure; blank checks and periodic reference measurements during sequences (Clause 9).
- Documentation: Test report content and expression of results specified (Clauses 11–12).
Practical applications and users
- Environmental and public‑health laboratories conducting water quality testing for regulatory compliance or monitoring.
- Water utilities assessing drinking water, groundwater remediation projects, surface water monitoring and treated wastewater effluent.
- Contract analytical labs, environmental consultants and research institutions performing VOC screening or targeted analysis.
- Manufacturers and users of SPME fibres, GC‑MS vendors and method validation specialists.
Practical benefits include minimal sample volume requirements, solvent‑free extraction, and high sensitivity for low‑level VOCs suitable for compliance and monitoring programs.
Related standards (if applicable)
- ISO 3696 - Water for analytical laboratory use
- ISO 5667‑1, ‑3, ‑5 - Water sampling guidance, preservation and handling
- ISO 8466‑1 - Calibration and evaluation of analytical methods
Keywords: ISO 17943:2016, VOCs in water, HS‑SPME, GC‑MS, water quality testing, BTEX, MTBE, detection limit, method validation.
Технические детали
- Технический комитет
- ISO/TC 147/SC 2 - Physical, chemical and biochemical methods
- SKU
- ISO 17943:2016
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