Naslov
Spectrophotometric Determination of Total Arsenic in Gelatine

Autori
Horvat, Alka ; Mažuranić, Karmen

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
18th International Symposium on Environmental Analytical Chemistry / - Barcelona : International Association of Environmental Anaytical Chemistry, 1988, 109-109

Skup
18th International Symposium on Environmental Analytical Chemistry

Mjesto i datum
Barcelona, Španjolska, 05.09.1988. - 08.09.1988

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
total As; determination; gelatine; spectrophotomery

Sažetak
Interest in determining As in some matherials has been growing in recent years. Arsenic is toxic and cancerogen. It can be found in soil, water, industrial and municipal wastes, men and animals. There are several techniques for determination of arsenic, but most of the proposed methods are very time consuming or require special equipment. In this paper a method for determination of total arsenic in gelatine is presented. The analytical method is based on the decompostion of the sample by HNO3+H2SO4+HCLO4 system. The procedure involves the reaction of As(V) with KJ in H2SO4 acidic solution. Liberated J2 is extracted in suitable organic solvent and measured at 515 nm. The method is applicable for deternmination of arsenic in gelatine in range 0.1-1.0 microg/g gelatine.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA