Volume :
3
Issue :
3
Abstract :
The biological samples are the body fluids in which the analysis of drug is required to determine the effect of the drug in specific organ of the body. Such as, Blood, Plasma, Serum, Tissue homogenates, Urine, Feces, Gastric contents, Saliva, Breath, Cerebrospinal fluids, Seminal fluid, Sputum, Bile are the biological sample. Several methods for storage & pre-treatment of the biological sample & it is necessary to achieve the desire effect. Different techniques for sample preparation mainly include solid phase extraction & liquid-liquid extraction.