Determination of chlorate and perchlorate in food

Chlorate can entry into a foodstuff in different ways. Perchlorate comes mainly from the fertilizer.

Chlorate was used as a pesticide in the past, but this is now forbidden. Another pathway for chlorate in a food is through chlorinated water.

Mainly Perchlorate comes from the fertilizer. In the area of former military installations the residues can also come from the explosives.