Abstract: A process for the elimination of labile glycohaemoglobin from a sample comprises adding to the sample a reagent comprising a temperature dependent buffer having a pH/temperature coefficient of -0.011 or less, and a method for measuring the concentration of stable glycohaemoglobin in sample containing stable and labile glycohaemoglobin fractions.

Abstract: Automatic chromatography apparatus comprises a column packed with adsorbent or attractant material;means for supplying an elutant solution to the column;loading means for loading controlled quantitites of a material into the column, the material containing a substance to be eluted;automatic control means which control the loading means so as to load the column with a first charge of the material and subsequently to load the column with a second charge of the material, the first charge being sufficiently small to ensure that the capacity of the column is not exceeded and the second charge being sufficiently large to ensure that the capacity of the column is exceeded;first monitoring means for monitoring and controlling flow rate to provide accurate flow information to enable peak area integration;second monitoring means which monitor the peaks of elution of the substance from the column resulting from the first and second charges of material;processing means connected to the monitoring means and arranged to in

Abstract: Automatic chromatography apparatus comprises a column packed with absorbent or attractant material;means for supplying an elutant solution to the column;loading means for loading controlled quantities of a material into the column, the material containing a substance to be eluted;automatic control means which control the loading means so as to load the column with a first charge of the material and subsequently to load the column with a second charge of the material, the first charge being sufficiently small to ensure that the capacity of the column is not exceeded and the second charge being sufficiently large to ensure that the capacity of the column is exceeded;first monitoring means for monitoring and controlling flow rate to provide accurate flow information to enable peak area integration;second monitoring means which monitor the peaks of elution of the substance from the column resulting from the first and second charges of material;processing means connected to the monitoring means and arranged to int

Abstract: A process for separating animal cells and/or animal cell debris from a liquid culture of animal cells involves flocculating the culture with a polygalacturonic acid and separating the flocculated animal cells and/or animal cell debris from the liquid culture.