title: A routine high-performance size-exclusion chromatography to determine molecular size distribution of Haemophilus influenzae type b conjugate vaccines.
abstract: High-performance size exclusion chromatography has been used to determine the molecular size distribution of Haemophilus influenzae type b (Hib) conjugate vaccines. Both high molecular weight preparations of native Hib capsular polysaccharide coupled to tetanus toxoid and low molecular weight vaccines with Hib oligosaccharides linked to the CRM197 nontoxic mutant diphtheria protein were analysed. Columns with different fractionation ranges were used for the two kinds of vaccines. This method showed to be rapid, accurate and reproducible for different lots of Hib vaccine of different composition produced by various manufacturers. It could replace more time-consuming chromatographic methods enabling control authorities to employ a single methodological approach for different Hib vaccines.
authors.affiliation: Laboratorio di Batteriologia e Micologia Medica, Istituto Superiore di Sanità, Rome, Italy.
authors.forename: C
authors.initials: C
authors.lastname: von Hunolstein
authors.forename: L
authors.initials: L
authors.lastname: Parisi
authors.forename: S
authors.initials: S
authors.lastname: Recchia
mesh_terms: D001426:Bacterial Proteins / Q000008:administration & dosage; D002850:Chromatography, Gel / Q000379:methods* / Q000706:statistics & numerical data; D005069:Evaluation Studies as Topic; D018073:Haemophilus Vaccines / Q000008:administration & dosage / Q000737:chemistry*; D019741:Haemophilus influenzae type b / Q000276:immunology*; D006801:Humans; D008970:Molecular Weight; D012680:Sensitivity and Specificity; D013745:Tetanus Toxoid / Q000008:administration & dosage; D018074:Vaccines, Conjugate / Q000008:administration & dosage / Q000737:chemistry