Arsenic- Determination by AAS
COEI-2-ARSENI Measuring arsenic by hydride generation and atomic absorption spectrometry
- Field of application
This method applies to the analysis of arsenic in the concentration range of 0 to 200 μg/l with prior mineralisation for oenological products.
Detection of biogenic amines by TLC
COEI-2-AMIBIO Qualitative method for detection of biogenic amines produced by lactic acid bacteria by thin-layer chromatography (TLC)
- Principle
This method determines the ability to produce biogenic amines (BA) by bacteria in liquid culture media containing the corresponding amino-acid precursor.
ANALYSE ET CONTROLE DES GAZ PAR CPG
COEI-2-CONGAZ Analyses of gas control by gaseous chromatography
- Principle
The gases are controlled by chromatography in gaseous phase using a "molecular sieve" type column and detection by catharometer or flame ionisation.
- Sampling
Either use
5-(hydroxymethyl)furfural- Determination
COEI-2-HMF Determination of 5-(hydroxymethyl) furfural
- Principle
The 5-(hydroxymethyl)furfural (HMF) is determined by HPLC (sharing liquid chromatography in reverse phase).
Zeolite Y-faujasite
COEI-1-ZEOLIT Zeolite Y-Faujasite
- Object, origin and field of application
Zeolite Y-Faujasite is synthesized from alumina sources such as sodium aluminate and silica sources such as sodium silicate.
Zeolite Y-Faujasite incorporated in depth filtration filter sheets play an important role in simultaneously clarifying and selectively removing taint molecules which alter wine flavours
Thiamine hydrochloride
COEI-1-THIAMIN Thiamine hydrochloride
3-[(4-amino-2-methyl-5-pyrimidinyl)methyl-5-
(2-hydroxyethyl-4-methylthiazolium hydrochloride
Thiamini hydrochloridum
Grape sugar
COEI-1-SUCRAI Grape sugar (rectified concentrated grape musts)
- Objective, origin and scope of application
Grape sugar is obtained exclusively from grape musts. The addition of grape sugar to wine is subject to regulation.
The label, or, when this is absent, the documentation accompanying the containers of grape sugar, must cite the sugar percentage.
Styrene-divinylbenzene beads
COEI-1-STYDVB Adsorbent styrene divinylbenzene beads
CAS N°9003-69-4
- Object, origin and scope of application
The adsorbent beads enable the reduction or elimination of organoleptic deviations characterised as “earthy-musty” by a physical process of adsorption.