Abdos Radioimmunoassay (Ria) Polystyrene (PS) tubes are cylindrical vials with a rounded bottom and separate cap. These are generally used to measure concentrations of substances, such as antigen concentrations (for example, hormone levels in the blood) without the need to use a bioassay. At room temperature, the transparent PS tubes can accept mild bases and weak acids, but not organic solvents and can withstand 1400 RCF during centrifugation.
Abdos Radioimmunoassay (Ria) Polystyrene (PS) tubes are cylindrical vials with a rounded bottom and separate cap. These are generally used to measure concentrations of substances, such as antigen concentrations (for example, hormone levels in the blood) without the need to use a bioassay. At room temperature, the transparent PS tubes can accept mild bases and weak acids, but not organic solvents and can withstand 1400 RCF during centrifugation.