Chromatographic detection analyzer for Shanghai Chuanqi trans fatty acids - Database & Sql Blog Articles

Test - uppercase JPG - memory 146K

Kaixin micro test

1206 red anti-stick

Test probe P100-M3

Trans fatty acids (TFA), also known as trans fats, are known as "timed on the table" and are mainly derived from partially hydrotreated vegetable oils. Partially hydrogenated oils have the advantages of high temperature resistance, non-deterioration, long storage, etc., and are widely used in foods such as cakes, biscuits, frozen pizza, French fries, and popcorn. Excessive intake of trans-fatty acids can increase blood cholesterol, which increases the risk of cardiovascular disease.

The content of the testable components is:
N-hexane, methyl tridecanoate, methyl octadecanoate, methyl anti-octadecenoate, cis

Methyl octadecanoate,

Anti-octadecadienoic acid methyl ester

Methyl octadecadiate, methyl eicosanoate, cis-

Methyl eicosenoate and the like.
The chromatograph resources are as follows:

GC-6890

Gas chromatograph is a cost-effective analytical instrument. The instrument adopts microcomputer control, keyboard operation and LCD menu Chinese menu display. It has high integration of electronic circuit, good reliability, simple operation, and memory setting parameters. It does not need to be reset every time to adapt to long-term operation.

Large oven and large fan with automatic rear door

The cooling system increases the cooling rate of the oven and truly achieves near-room temperature operation. The instrument has flexible use of capillary columns, glass columns, and stainless steel columns. Constant temperature and temperature programmed operation is available.

Main performance characteristics:

※It adopts large-screen LCD Chinese display , which is easy to learn and easy to learn.

※ With self-diagnosis, over-temperature power-off protection , file storage, call, fifth-order program temperature and other functions, with single-column automatic compensation function; can ensure the stability of the baseline during temperature-programming analysis;

※With six independent temperature control zones, the intelligent door opening system has a very fast cooling speed; each gasification chamber, detector and amplifier are modular in design, which is very convenient to install and replace;

※Equipped with a separate capillary analysis system , separate capillary split injector (including diaphragm cleaning, splitting and makeup adjustment). Optional capillary shunt

/

※The instrument is equipped with hydrogen flame detector, thermal conductivity detector, flame photometric detector , users can choose according to their own analysis requirements, can also increase the six-way valve injection, reformer device, etc.; and can realize the detector series And work in parallel.

☆Technical indicators:

Temperature control index

Oven: at room temperature

6

°C～

399

°C

Accuracy ±

0.1

°C

Injector and detector: above room temperature

6

°C～

399

°C accuracy ±

0.1

°C

Temperature programming phase: fifth order

Temperature programmed rate: at room temperature

6

°C～

200

°C

0.1

°C～

40

°C

/min

more than the

200

°C

0.1

°C～

20

°C

/min

Detector indicator

Hydrogen flame detector

FID

):

Sensitivity

Mt

≤

1

×

10

-

11

g/s

(n-hexadecane)

Noise ≤

5

×

10 ^-14 A

Linear range ≥

10 ⁶

Thermal conductivity cell detector

TCD

):

Sensitivity

S

≥

5000mv.ml/mg (

Hexadecane

)

Noise ≤

20uv

Linear range

≥

10 ⁴

Flame photometric detector

FPD

):

square

formula:

S

Use or

P

Filter

Sensitivity:

1

×

10

-

11

g(s)/s(

In thiophene

S)

,

1.4

×

10 ^-12 g(p)/s(

Among methyl parathion

P)