Sterile Standard albumin for biochemical assays, as stabilisation reagent and as reference in quantitation assays. Very suitable for all standard applications where a high quality albumin is to be used that does not meet any special requirements. Suitable for immunoassays, as blocking reagent, for stabilising enzymes and antibodies, for industrial applications on a large scale and much more. Purification process The purification of the BSA is carried out using a far-reaching heat shock/diafiltration method that produces higher purity albumins than the usual Cohn crystallization. The process takes place in a closed system. Albumin, NZ-Origin is particularly recommended when procedural regulations require the use of albumin of guaranteed origin Australia or New Zealand. BSA, US-Origin is particularly recommended if the use of albumin with certified US-Origin is dictated by process regulations. Albumin of European origin is produced from blood of European cattle herds. It is excellent for use in all assays and products manufactured for regions outside the USA, Australia and New Zealand. Molar extinction coefficient: 4,4x10 4 L x mol -1 x cm -1 (acc. to 0,667 L x mol -1 x cm -1 for a 0,1 % solution). Albumin solution 20 % 20 % w/v, sterile, for biochemistry and cell biology