Figure 4From: Performance characteristics of biodistribution of 99mTc-cefprozil for in vivo infection imagingEffect of Sn (II) amount on the labeling yield of99mTc-cefprozil complex. Conditions: 4 mg cefprozil, 25 to 200 μg Sn (II), pH 4, and 30-min reaction time; n = 3.Back to article page