An overall inspection solution for liquor plasticizers.

days ago, the media reports of the liquor plasticizer wave continued fermentation, Moon Xu company is also closely watching the development, and in the first time quickly
organization
related technical personnel to discuss and develop application solutions, has developed a full set of professional testing programs. You can be provided with the analysis required: solid-phase extraction of small columns, liquid phase
-chromatography
-pillar, gas-phase
-chromatography column
, membrane and
-filter
and other chromatography
sumables
can also provide appropriate technical support and solutions.why does a plasticizer
appear in
?
media reported that no artificial plasticizer was found in the incident, but did not specify the content. It is understood that the plasticizer in liquor mainly stems from plastic liquor barrels, plastic liquor pipe, wine pump in and out of latex pipe, sealed wine tank plastic cloth, finished wine plastic lid, finished wine plastic bag packaging, finished wine plastic bottle packaging and finished wine plastic barrel packaging.Phthalates is a commonly used plasticizer that increases the plasticity and flexibility of products, widely used in plastic products, insect repellents, pesticide carriers, dye additives, coatings and lubricants and other industrial products, should not appear in food. The plasticizer DEHP acts like an artificial hormone and can harm male fertility and promote female sexual precociousness, which can lead to liver cancer in large quantities over a long period of time.The testing method of 16 common plasticizers in wine-based samples developed by Yuxu Company in December: I, experimental purpose
to establish the pre-treatment and testing method of plasticizers in liquor. This method uses Welchrom ® BRP (500 mg/6 mL, glass column) rich liquor sample phthalates, the established solid phase extraction method can greatly eliminate impurities interference, to ensure the accuracy of the test results.II, Instruments and Materials
1.Materials: liquor; ultra-pure water; phthalates (PAEs) mixed; Welchrom® BRP GLASS (500 mg/6 mL, glass column tube); glass pipe pipe; ear wash ball;
beaver 2.Instruments: Agilent 1260; Agilent 7890/5975C GC/MS; Nitrogen Blower, etc., the experimental step
1.SPE purification
Welchrom® BRP GLASS (500 mg/6 mL)
(1) in turn: 6 mL methyl statins and 6 mL methanol, 6 mL water balance.
(2) sample: 500 mL sample added to the small column, flow rate ≤15 mL/min, the outflow is discarded.
(3) wash: 3 mL 5% methanol solution wash, wash solution discarded.
(4) wase-free: 3 mL methanol and 6 mL methyl-butyl ether were equisitioned to collect the seine.
(5) resolvation: decompression distillation of the wash at 30 degrees C to dry, 1 mL acetylene dissolved residue, after membrane filtration HPLC analysis.
: (5) The steps are for reference and the user can adjust them according to the analytical instruments he or she uses.. 2. Liquid chromatography conditions
column: Ultimate ® AQ-C18 (250 × 4.6mm, 5m)
flow rate: 1.0mL/min;
sample size: 20 sl;
detector: UV 242nm;
column temperature: 30c flow phase: A: water B: ethyl-methanol: 20:80.note
(1) during the experiment,
reagents
and containers must be glass, try to avoid contact with plastic products. (2) methanol must be imported chromatography pure. .