Key Laboratory of Carbohydrate Chemistry and Biotechnology;
Ministry of Education;
School of Biotechnology;
Jiangnan University;
Wuxi 214122;
China;
National&Local Joint Engineering Laboratory for Novel Vaccine Development Technology;
Beijing Minhai Biotechnology Co.;
Ltd.;
Beijing 102600;
China;
Jiangnan University-Beijing Minhai Biotechnology Joint Research Center of Carbohydrate-Based Vaccines;
Jiangnan University;
Wuxi 214122;
China;
Haemophilus influenzae type b; Capsular polysaccharide; Quantitative^(1)H-NMR; Quantitative^(31)P-NMR; Ribose content; Phosphorus content;