Beschreibung

Automatic plasticizer testing scheme

Automatic Food plasticizer tester
Application field food
Food related plasticizer (phthalate esters) is a hot issue in the current food industry, China Food Association analysis believes that automatic plasticizer (plasticizer) detection scheme: Through a large number of comprehensive tests of food products across the country, food products basically contain plasticizer ingredients, 2.32mg/kg (mehr als 8 times of the national regulations), low 0.495mg/kg (mehr als 1.7 times of the national regulations), average 0.537mg/k g (more than about 2 times of the national regulations). The content of high-grade food is higher, and the content of low-grade food is lower. Plasticizer, also known as plasticizer, is a polymer material additive widely used in industry. Adding this substance in plastic processing can make its flexibility enhanced, easy to process, and can be legally used for industrial purposes. Since May 2011, six kinds of phthalate plasticizers, including DEHP, DINP, DNOP, DBP, DMP and DEP, were detected successively in food from Taiwan, China, and DIDP was detected in medicine. Since then, Die “haze” effect of plasticizer continues to spread, in drinks, Essen, convenience food and drugs continue to be exposed after the plasticizer exceeded the standard, its lethality let many people talk about “Plastik” Farbwechsel. Excessive plasticizer in food will have serious harm to the human body, long-term uptake of plasticizer will interfere with human endocrine disorders disorders, will also increase the burden of liver and kidney, causing chronic damage to the immune system, digestive system, serious will also lead to liver cancer, its toxicity is 20 times of melamine, Ministry of Health emergency announcement, will phthalate esters (also called phthalates) class substances, Include in the list of non-edible substances that may be illegally added to food and food additives that are easy to abuse.

Guangdong set spectrum technology | guangzhou jingu scientific instrument co., LTD is a company that specializes in industry hot solution, the plasticizer for food industry hotspot, in accordance with our country on the determination of phthalates in food “(GB/T21911-2008) Standards, research and development of new a set of automatic plasticizer (plasticizer) detection scheme, This program has two certifications, for the accurate analysis and detection of food plasticizers – phthalates in the status of the domestic.

Automatic Food plasticizer tester
ICH. Main performance characteristics:

1. Friendly man-machine dialogue interface makes your operation simpler.
2. Das Shunt-/Nicht-Shunt-Injektionssystem macht die Analyse flexibel und bequem.
3, with two way valve parts control system, bequem, automatische Online-Probenahme zu realisieren.
4, Hochpräzises EFC (fließen) Das System macht Ihren Ablauf auf einen Blick sichtbar, kann den Gasfluss genauer einstellen.
5, umfassendes Erkennungs- und Fehlerdiagnosesystem, damit Sie das Problem des Instruments schnell beurteilen und lösen können.
6, Größerer Temperaturkontrollbereich: ambient temperature +5ºC ~ 450ºC, so dass der Probenanalysebereich breiter ist.
7, can install the United States HP-5890 gas chromatograph micro thermal conductivity detector, to achieve * docking.
8, the best cut-off protection system, can avoid the detector and chromatographic column damage to the greatest extent.
9, Im Säulenkasten kann ein Ultra-Niedrigtemperatur-Kontrollsystem installiert werden, low -80ºC ultra-low temperature control, um Ihre Anforderungen an die Analyse von Materialien mit niedrigem Siedepunkt zu erfüllen.
10. The intercolumn compensation circuit allows the drift of the baseline to be electronically compensated during the program’s heating operation, Reduzierung der Komplexität, die die zweite Spalte mit sich bringt, Detektor und Hilfsflusssystem. Es können gleichzeitig zwei einspaltige Kompensationskanäle installiert werden.

Zwei, temperature control index:

Automatic Food plasticizer tester
III. Technical indicators of detector:

1, hydrogen flame ionization detector (FID) :

Cylinder collector structure design, quartz nozzle, response *

Nachweisgrenze: ≤8×10-12g/s(n-cetane/isoctane)

Grundrauschen: ≤ 6×10-12 A/H

Baseline drift: ≤2×10-12A/30min

Linearität: ≥106

Automatic ignition

Stabilization time: ten minutes

2, thermal conductivity detector (TCD) : the use of semi-diffuse structure, the power supply adopts constant current control mode

Sensitivity: ≥2500mV·ml/mg(n-cetane/isoctane).

Grundrauschen: ≤20μV.

Baseline drift: ≤100μV/30min.

Linear >=104

Vier, TP20-GC food plasticizer detection gas chromatograph analysis conditions:

AB-5 quartz capillary column: 30M*0.25mm*0.25um

Carrier gas: Hydrogen flow rate 1ml/min

Inlet temperature: 250°C

Injektionsmethode: no shunt injection

Temperature of detector: 300°C

Probengröße: 1ul

Heating procedure: the initial column temperature was 60ºC and kept for 1min

The temperature was heated at 20ºC/min to 220ºC for 1min

Then heat up at 5ºC/min to 280ºC for 4min

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