תיאור

ערכת בדיקת פלסטין אוטומטית

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 (יותר מ 8 times of the national regulations), low 0.495mg/kg (יותר מ 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, חרסינה, and DIDP was detected in medicine. Since then, ה “haze” effect of plasticizer continues to spread, in drinks, מזון, convenience food and drugs continue to be exposed after the plasticizer exceeded the standard, its lethality let many people talk about “פלסטי” color change. 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
אני. Main performance characteristics:

1. Friendly man-machine dialogue interface makes your operation simpler.
2. מערכת הזרקת shunt/non-shunt הופכת את הניתוח לגמיש ונוח.
3, with two way valve parts control system, נוח למימוש דגימה אוטומטית מקוונת.
4, EFC דיוק גבוה (זְרִימָה) המערכת עושה את הזרימה שלך במבט חטוף, יכול להגדיר בצורה מדויקת יותר את זרימת הגז.
5, מערכת זיהוי ואבחון תקלות מקיפה, כך שתוכל לשפוט במהירות ולפתור את בעיית המכשיר.
6, טווח בקרת טמפרטורה רחב יותר: ambient temperature +5ºC ~ 450ºC, כך שטווח ניתוח המדגם רחב יותר.
7, can install the United States HP-5890 gas chromatograph micro thermal conductivity detector, להשיג * docking.
8, the best cut-off protection system, can avoid the detector and chromatographic column damage to the greatest extent.
9, ניתן להתקין תיבת עמודה מערכת בקרת טמפרטורה נמוכה במיוחד, low -80ºC ultra-low temperature control, כדי לענות על צורכי ניתוח החומרים בנקודת הרתיחה הנמוכה שלך.
10. The intercolumn compensation circuit allows the drift of the baseline to be electronically compensated during the program’s heating operation, הפחתת המורכבות שמביאה העמודה השנייה, גלאי ומערכת זרימת עזר. ניתן להתקין שני ערוצי פיצוי בעמודה אחת בו זמנית.

שתיים, 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 *

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

רעש בסיס: ≤ 6×10-12 A/H

Baseline drift: ≤2×10-12A/30min

ליניאריות: ≥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

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

רעש בסיס: ≤20μV.

Baseline drift: ≤100μV/30min.

Linear >=104

ארבע, 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: 250ºC

Injection method: no shunt injection

Temperature of detector: 300ºC

Sample size: 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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