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E - American Academic & Scholarly Research Center

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absorbance<br />

www.aasrc.org/aasrj <strong>American</strong> <strong>Academic</strong> & <strong>Scholarly</strong> <strong>Research</strong> Journal Vol. 4, No. 4 July 2012<br />

0.5<br />

0.4<br />

0.3<br />

0.2<br />

0.1<br />

0<br />

8 9 10 11 12 13 14<br />

Figure 4. Effect of pH on absorbance of product cefi; ceph; cefo; with HPTS.<br />

absorbance<br />

0.5<br />

0.4<br />

0.3<br />

0.2<br />

0.1<br />

0<br />

30 40 50 60 70 80<br />

Figure 5. Effect of temperature on absorbance of product cefi; ceph; cefo with HPTS.<br />

pH<br />

temperature℃<br />

16<br />

cefo<br />

cefi<br />

ceph<br />

cefo<br />

cefi<br />

ceph

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