The invention relates to the technical field of analysis and testing, and discloses a quality detection method for 6-
aminopenicillanic acid, which can effectively detect coporphyrin I which is generated in a
penicillin fermentation-
enzyme method process and causes the 6-
aminopenicillanic acid to become
powder, and can be used for detecting the content of
porphyrin in each main step of the process. The generation reasons and the effective removal steps are known, so that the technical
process control is better guided; meanwhile, the chromatographic conditions can also be used for detecting the content of
porphyrin in each main step of the process for producing 6-
aminopenicillanic acid so as to understand the generation reasons and effective removal steps of the
porphyrin, so that the
process control is better guided.