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THIMEROSAL-FREE PRESERVATIVES FOR VACCINES
THIMEROSAL-FREE PRESERVATIVES FOR VACCINES
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机译:疫苗的三叶草无防腐剂
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摘要
Novel combination of preservatives (methyl and propyl parabens, benzyl alcohol, and 2-phenoxyethanol) were found to pass antimicrobial testing according to USP, BP, and EP. The new preservatives were put into vaccines using L-histidine as a buffer to keep pH at 7.0. HPLC methods were developed to analyze these preservatives and their degradation products.
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