TY JOUR TI UPDATING SAMPLE PREPARATION IN DETERMINING SUGAR CONTENT IN SUGAR BEET BY POLARIMETRIC METHOD KW sugar beet KW sugar content KW polarimetric method KW clarifier KW lead acetate KW aluminum sulfate KW kieselguhr KW conjugation JO Bulletin of KSAU AU Egorova, M.I. AU Smirnova, L.Y. AU Puzanova, L.N. PY 2025 IS 0 PB Krasnoyarsk State Agrarian University