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. 2013 Aug 14;4(2):125–131. doi: 10.1016/j.jpha.2013.08.001

Fig. 2.

Fig. 2

The zeroth (A) and first (B) derivative spectra of representative commercial AMK sulfate injections against two reference standard solutions. Each analyzed solution with a nominal concentration of 50 mg/mL AMK base. In Fig. 2A, 100 and 250 represent the declared concentration units in mg for 2 mL pharmaceutical products.