TY - JOUR AU - RAZIEE, MARYAM TI - Microextraction and measurement of cholecalciferol (vitamin D3) in biofibers by a ‎three-phase method using hollow fiber and two immiscible organic solvents JO - Journal of applied research in chemisry VL - 18 IS - 3 SP - 26 EP - 37 PY - 2024 DO - ER -