Victory Mi-Flex
Description
Sample preparation with the modular and flexible Sieg-Mi-Flex migration cell for analytical measurement and organoleptic testing of migration of packaging ingredients, “extractables and leachables” (E&L) and MOSH/MOAH in food simulants, in headspace or in pharmaceutical formulations for regulatory compliance.
Advantages of the Sieg-Mi-Flex
- Sieg-Mi-Flex is available in the materials: Stainless steel (VA 1.4571), borosilicate glass and PFA-coated stainless steel.
- They can be combined with each other.
- with individual serial numbers and a factory certificate for individual proof of dimensional accuracy
- All center rings and all reduction plates of the Sieg-Mi-Flex system fit into the fixation plate set of the migration cell system Sieg-Mi-Flex with the size 140 x 140 mm (EN1186-1:2002) for the examination of different sized sample areas at defined surface/volume ratios.
-
Temperature resistant -15 °C to 180 °C, pressure-tight up to 9 bar (depending on material)
- Is the most sold migration chamber
- Rapid adaptation to special specimen sizes can also be achieved with the so-called reduction plates made of stainless steel (VA 1.4571) in conjunction with the center rings.
- The Sieg-Mi-Flex can also be equipped with 2 packaging patterns (top/bottom).
- The migration cell is then stored upright instead of lying horizontally.
- The barrier effect of packaging materials can also be tested, e.g. with the “sandwich arrangement” test setup.
- Sieg-Mi-Flex are issued individually with a batch number, so a works certificate can be issued for each center ring and fixing plate.
With the help of the Sieg-Mi-Flex migration cells, a migration assessment of packaging ingredients from food repackaging can already take place on the finished roll goods.
Tests have shown that temperature equilibration by diffusion is sufficient when the migration cell filled with a simulant remains upright for 24 h.
There is no need to turn around. The migration cell is easy to close or open with stainless steel knurled screws. Their compact, space-saving design can be stored horizontally or vertically for temperature control in drying ovens or bath/circulating circulators.
In the Sieg-Mi-Flex migration cell system, many sizes and thicknesses of packaging in a wide variety of material compositions can be tested with all liquid and solid food simulants.
For studies with solid food simulants (E) poly-2,6-diphenyl-p-phenylene oxide (MPPO), the Tenax kit is used. Some customers also use the Tenax kit for migration testing with oil, as the fixing plate with the GL45 spout is easier to clean in the dishwasher than the center rings with the GL14 pour-in and GL14 pour-out spouts.
The Sieg-Mi-Flex MIgration cell is then subjected to the test conditions with one test piece lying horizontally at a time. Due to the high temperature resistance (-20 °C to 180 °C) and the high pressure tightness up to 9 bar, stainless steel migration cells System-Siegwerk (Sieg-Mi-Flex) can also be used for liquid food simulants under test conditions beyond their boiling point.
Application examples
Migration cells of the Sieg-Mi-Flex type are basically suitable for migration tests, among others according to EN1186. Migration tests can be performed with cloths, papers, foil or cardboard packaging, gloves and many other materials or surfaces.
The following simulants can be used in the migration cell “Sieg-Mi-Flex”:
(A) Ethanol 10 % vol
(B) Acetic acid 3 % wt.
(C) Ethanol 20 % vol.
(D1) Ethanol 50 %Vol.
(D2) vegetable oil with specific fatty acid distribution from VO EU 10/2011 (PIM)
Also, according to EN1186 and Directive 97/48/EC, substitute simulants such as the solvents isooctane and ethanol 95 % vol. can be used, as well as other alternative simulants that do not chemically attack the materials stainless steel (V4A 1.4571), PTFE and FEP (tetrafluoroethylene-hexafluoropropylene copolymer).
More information
Cleaning migration cells
The Sieg-Mi-Flex cells are completely disassembled for cleaning and left for approx. 15 min. sonicated with isopropanol at room temperature in an ultrasonic bath, then dried. Then rinsed with ethanol pure LC-MS quality and dried again.
The individual parts of the Sieg-Mi-Flex migration cell are dishwasher safe
Food categories and simulants in Regulation 10/2011 (PIM)
| Food properties: | Simulant food: |
|---|---|
| Hydrophilic | (A) Ethanol 10 % vol. |
| Hydrophilic; < pH 4.5 | (B) Acetic acid 3% wt. |
| Hydrophilic/lipophilic; alcohol content up to 20%. | (C) Ethanol 20 % vol. |
| Lipophilic; alcohol content >20 %; O/W emulsion | (D1) Ethanol 50 % vol. |
| Lipophilic; free fats | (D2) Vegetable oil with specific fatty acid distribution |
| Dry food | (E) Poly-2,6-diphenyl-p-phenylene oxide (MPPO) |
Due to the flexibility and modular design of the System-Siegwerk (Sieg-Mi-Flex) migration cell system, many sizes and thicknesses of packaging of different material compositions can be used for migration testing with all liquid and solid food simulants, food simulants for substitute testing (isooctane, ethanol 95 vol.%) or solvents from pharmaceutical formulations even beyond their boiling point on a defined sample area and with subsequent storage depending on time and temperature. The migration cell system Siegwerk (Sieg-Mi-Flex) following EN 1186-1:2002 (D), Annex C (informative), Figure C.4-Cell Type B and Figure C.5-Cell Type C, was developed and tested in cooperation with the analytical department of Siegwerk Druckfarben AG & Co. KGaA.
An overview of all versions of our Sieg-Mi-Flex migration cell and matching accessories:
