3b616 | Zinc(II)– betaine complex | Additive compositionZinc betaine complex with a minimum of 20 % of zinc and a minimum of 41 % of betaineNickel: maximum 60 mg/kgSolid formCharacterisation of the active substancesName: catena-[μ3-sulphato-(trimethylammonio)acetato-zinc(II)]Chemical formula: [Zn((CH3)3NCH2COO) (SO4)]nSpecifications- Minimum of 20 % of zinc
- Minimum 41 % betaine,
- 9 %–12 % sulphur
- Maximum 5 % moisture
Analytical methodsFor the quantification of total zinc in the feed additive:- Inductively coupled plasma-atomic emission spectrometry, ICP-AES (EN 15621 or EN 15510) or
- Atomic absorption spectrometry, AAS (ISO 6869)
For the quantification of total zinc in premixtures:- Inductively coupled plasma-atomic emission spectrometry, ICP-AES (EN 15621 or EN 15510) or
- Atomic absorption spectrometry, AAS (ISO 6869) or
- Inductively coupled plasma-mass spectrometry, ICP-MS (EN 17053)
For the quantification of total zinc in compound feed:- Inductively coupled plasma-atomic emission spectrometry, ICP-AES (EN 15621 or EN 15510) or
- Atomic absorption spectrometry, AAS (Commission Regulation (EC) No 152/2009 (Annex IV-C) or ISO 6869) or
- Inductively coupled plasma-mass spectrometry, ICP-MS (EN 17053)
For the quantification of betaine in the feed additive:- High performance liquid chromatography with refraction index detection (HPLC-RI)
For the quantification of sulphur and sulfate in the feed additive:- Inductively coupled plasma-atomic emission spectrometry, ICP-AES (EN 15621)
Proof of complex formation between zinc, betaine and sulfate: Powder X-ray diffraction (XRD) | - Dogs
- Cats
| - | - | 200 | 1.The additive shall be incorporated into feed in the form of a premixture.2.For users of the additive and premixtures, feed business operators shall establish operational procedures and organisational measures to address the potential risks resulting from their use. Where those risks cannot be eliminated by such procedures and measures, the additive and premixtures shall be used with personal breathing eye and skin protective equipment. | 7 February 2034 |