Determination of metal and mineral matter contents in cow milk in Akcaabat province of the city of trabzon with ICP-MS

In this study of master's thesis, amounts of chrome, cobalt, nickel, copper, gallium, arsenic, strontium, cadmium, barium, lead, aluminium, selenium, argent, iron, zinc, rubidium, sodium, magnesium, phosphorus, sulfur, potassium, calcium are indicated in cow's milk provided from 16 different villages (Aykut, Helvacı, Erikli, Düzköy, Akçakale, Demirkapı, Acısu, Yaylacık, Çiçeklidüz, Esentepe, Arpacılı, Işıklar, Adacık, Osmanbaba, Yeşiltepe, Mersin) in Trabzon, Akçaabat. Study was done in two different terms of 2015. First term is winter season (November, December, January) during which animals are fed with dry fodder in the barn. Second term is summer season (June, July, August) during which animals are fed with fresh feed. A totalof 256 examples are analyzed. Levels of elements in the examples are specified by with means of ICP-MS method. It is found that the amounts of gallium, barium, lead, rubidium, sodium, phosphorus, sulfur, aluminium, potassium and calcium in milk of winter and summer season are closeto each other while the amounts of chrome, cobalt, zinc, nickel, copper, iron, magnesium, cadmium are a bit more in winter season. Besidges, the amounts of arsenic and selenium are a bit more in summer season and strontium are about 3 times of summer season in winter season. The amounts of heavy metal in the analyzed milks are found between or under the specified rates given in literature except nickel in milk from all villages, argent in four villages, lead in one village. The amounts of mineral matter in milk in all villages are found under the rates given in literature.