Mineral oil in rice quick test box manual

Mineral oil in YC183Y01H_ rice _20 _250917

                    Mineral oil in rice
Quick test box manual

                                                                                                               
Product number:
YC183Y01H

1简介

Paraffin or liquid paraffin is derived from petroleum fractionation products and belongs to the mineral oil category. Products with higher purity can be used in medicine and cosmetics, and low-grade products contain higher impurities. If mixed with food, it is harmful to the human body. The surface color of aged rice is dull, and the addition of paraffin wax, liquid paraffin wax or other mineral oils can make the surface smooth and beautiful, but it masks the possible mycotoxins in aged rice. Make the aged rice crystal clear and translucent, so as to pretend to be new rice and sell it in the market, which seriously damages people's economic interests and physical health
。

2检测原理

Paraffin or liquid paraffin is derived from petroleum fractionation products and belongs to mineral oils.
The mineral oil on the rice is washed off with hot water, and the experimental phenomenon can be observed by using the characteristics of mineral oil insoluble in water.

3检测范围

rice

4技术指标

Qualitative

5样品测定

Take half the volume of rice in the sample cup and add
70℃
Bring the above hot water to the sample cup nearly full, and gently stir it with a clean toothpick
30For more than a second, let stand to reduce the solution temperature to
50℃
In the following, if the sample is mixed with paraffin wax, fine oil droplets will appear on the liquid surface. As the temperature decreases and the time increases, the oil droplets of the liquid paraffin will accumulate and increase, and the oil droplets of the solid paraffin will form a white flake and float on the liquid surface.

6注意事项

6.1reagent
There is a control solution in the box, and controlled experiments can be done if necessary.

6.2This product is only used for initial screening, and the final result is subject to the relevant national standards and methods.

7储存条件与有效期 

The reagent is in
4-30
Store in a cool and dry place away from light, the valid period is
12Month.

8试剂盒装箱单

Specifications:
 
20time
/
盒