Mycotoxins sampling in raw materials - A practical guide

MYCOTOXINS SAMPLING for raw materials in feed mills A PRACTICAL GUIDE

PATENT CO, DOO., Vlade Ćetkovića 1A, 24 211, Mišićevo, Serbia

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Correct sampling of raw materials for analysis of mycotoxins that arrive at the feed mill is the first step to ensure that the animal feed is safe and it conforms with the regulations on mycotoxins in feed.

TRUCK

QUANTITY

10 to 20 tons of raw material 6 to 8 kg of sample

20 to 50 tons of raw material 10 kg of sample

The sampling may be carried out directly on the truck, by continuous flow or in the pile of sacks.

In this chart, instructions for taking samples from different stages of feed production are shown.

POINT

Sample the front, rear right and left points, and then continue in the centre of the truck with a gap of one meter.

FINAL SAMPLE

CONTINUOUS FLOW

20x No. Ton

Total amount of raw material (kg)

Representative sample (kg)

≤ 50

1

50-500

1

500-1.000

1

1.000-3.000

2

3.000-10.000

4

10.000-20.000

6

20.000-50.000

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The spear should be inserted from top to bottom at the marked locations for the truck.

The samples should be taken, pulled and then mixed, homogenized and quartered to get 1 kg of total sample.

1 KG

Make a hole in the screw conveyor, put a tube at an angle of 45° taking into account the flow direction of the raw material in conveyor

Quarter of the sample

All samples should be mixed, homogenized and quartered to get 1 kg of representative sample.

Mix the samples to form a cone

Flatten the cone

1 KG

PILE OF SACKS

Divide in half

Refer to Quarter of the sample Table on the right

Sample the visible faces of the pile, it must be done in the form of X, trying to take a sample from each line of bags

The spear should be inserted in the demarcated points, the sample is taken and removed.

Divide in quarters

Take this sample and repeat the process until 1 kg is obtained

Take 2 opposite samples as shown

All samples should be mixed, homogenized and quartered to get 1 kg of representative sample.

1 KG

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