METHOD OF PREPARING CATTLE FUR SAMPLES FOR ANALYSIS OF MACRO- AND MICROELEMENT COMPOSITION

摘要

FIELD: chemistry.;SUBSTANCE: method involves preliminary soaking and controlling turbidity of the washing solution. Soaking is carried out in water at temperature from 40 to 60°C for 2-3 hours. The fur is then washed with running water until visible dirt disappears, followed by ultrasonic cleaning at frequency 35 kHz, while successively using washing media - bidistilled water - 40% ethyl ether - bidistilled water for 60 minutes in each medium.;EFFECT: ensuring complete removal of exogenous contamination from the analysed material without loss of endogenous macro- and microelements with minimal time, energy and financial expenses.;2 tbl