Publikuar
ISO 21033:2016 specifies an inductively coupled plasma optical emission spectroscopic method (ICP-OES) for the determination of the trace element content in oils. Depending on the dilution solvent used, most types of vegetable oils can be analysed (crude, degummed, refined, bleached, deodorized and hardened oils) and nearly all types of lecithins and phosphatides. Milk and milk products (or fat coming from milk and milk products) are excluded from the scope of this International Standard.
This method is only suitable when the elements are present in a solubilized form. Fine particles, such as bleaching earth, metal particles and rust, can result in poor recovery of the trace elements present as nebulization and atomization problems affect the ICP-OES analysis.
NOTE The only suitable non-ashing direct method for samples containing fine particles is graphite furnace atomic absorption spectrometry.
PUBLISHED
ISO 21033:2016
90.92
Standard to be revised
3 qer 2025
IN_DEVELOPMENT
ISO/CD 21033
Vajra dhe yndyrna bimore dhe shtazore - Përcaktimi i elementëve gjurm? me anë të metodës që bazohet në spektroskopinë e emisionit optik me plazëm të çiftuar me induksion (ICP-OES)
60.60 Standard published
English