Article
Determination of hydrazine in a meningococcal C conjugate vaccine intermediary product
Registro en:
BASTOS, Renata Chagas et al. Determination of hydrazine in a meningococcal C conjugate vaccine intermediary product. Vaccine, Amsterdam, v. 28, n. 34, p. 5648-5651, 2010.
1873-2518
10.1016/j.vaccine.2010.05.079
Autor
Bastos, Renata Chagas
Carvalho, Juliana Machado de
Silveira, Ivna Alana Freitas Brasileiro da
Jacob, Silvana do Couto
Leandro, Katia Christina
Resumen
In Brazil, polysaccharide–protein conjugate vaccine against Neisseria meningitidis group C (MenCPS-TT) using hydrazine-activated-tetanus toxoid (TT) as a carrier protein has been developed. Because of the toxicity of hydrazine in humans, it is necessary to monitor this substance's process control step during the vaccine production. The electroanalytical methodology was developed and validated for the determination of hydrazine during the process control of MenCPS-TT vaccine production by differential pulse polarography. The reduction potential was −0.95 V in acetone and sulphuric acid solution. The method presented linear range between 30 and 150 μg L−1and recovery of 93.5 ± 0.8%.