Patent · US Expired

Medium for the separation of human blood leucocytes

US4255256A · kind A · utility

30Cited by
7References
8Claims
0Family size

Inventors

Key dates

Filing dateNov 23, 1979
Grant dateMar 10, 1981
Priority date
Expiry dateNov 23, 1999

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N33/48
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A rapid one-step density separation method for separating and purifying whole blood into mononuclear and polymorphonuclear leucocyte and erythrocyte fractions wherein use is made of a separating medium consisting of a single aqueous solution of a high molecular weight sucrose or glucose polymer, and a water soluble metrizoate or diatrizoate compound, the density of the solution being greater than 1.095 gm/ml at room temperature and the concentration of the sucrose or glucose polymer lying in the range of 5 to 10% (based on weight/total volume of solution).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.