{
  "url": "https://openlegislation.uk/eu-decision-2002-657/annex/chapter-2.4",
  "json_url": "https://openlegislation.uk/eu-decision-2002-657/annex/chapter-2.4.json",
  "legislation": "eudn/2002/657",
  "legislation_title": "Commission Decision of 12 August 2002 implementing Council Directive 96/23/EC concerning the performance of analytical methods and the interpretation of results (notified under document number C(2002) 3044) (Text with EEA relevance) (2002/657/EC)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2002-657",
  "path": "annex/chapter/2.4",
  "kind": "chapter",
  "number": "2.4.",
  "heading": "CONFIRMATORY METHODS FOR ELEMENTS",
  "text": "Confirmatory analyses for chemical elements shall be based on the concept of unequivocal identification and accurate as well as precise quantification by means of physical-chemical properties unique to the chemical element at hand (e.g. element characteristic wavelength of emitted or absorbed radiation, atomic mass) at the level of interest.\nThe following methods or combinations of methods are considered suitable for the identification of chemical elements:\nTable 7\nSuitable confirmatory methods for chemical elements\nTechnique\nMeasured parameter\nDifferential pulse anodic stripping voltametry\nElectric signal\nAtomic absorption spectrometry\nFlame\nAbsorption wavelength\nHydride generation\nAbsorption wavelength\nCold vapour\nAbsorption wavelength\nElectrothermal atomisation (graphite furnace)\nAbsorption wavelength\nAtomic emission spectrometry\nInductively coupled plasma\nEmission wavelength\nMass spectrometry\nInductively coupled plasma\nMass-to-charge-ratio",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2002/657/annex/chapter/2.4",
    "retrieved_at": "2026-11-01T15:18:31.211349+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}