[Improved polarographic method of determining lead, copper and zinc in food products].
D003300:Copper / Q000032:analysis*; D005504:Food Analysis; D007854:Lead / Q000032:analysis*; D008722:Methods; D011048:Polarography; D015032:Zinc / Q000032:analysis*
D007854:Lead; D003300:Copper; D015032:Zinc
Usovershenstvovanie poliarograficheskogo metoda opredeleniia svintsa, medi i tsinka v pishchevykh produktakh