H. H. SELIGER 



203 



09 



.08 



07 



!^ 06 



O 05 



^ 04 

 UJ 



O 03 



3 



02 - 



01 - 



+—+ + -<♦- 



AMINO PHTHALIC ACID 



J I I I ' '\ 



14 



6 7 8 9 10 II 12 13 



pH 

 Fig. 3. Fluorescence quantum yield of aminophthalic acid as a function of pH. 



1.0 - 



>- 

 (- 



'J) 



UJ 



> 



t- 

 < 



UJ 



CC 



6 - 



4 - 



■AX . 



o LUMINOL CHEMILUMINESCENCE 

 .IN NoOH 



AP ACID FLUORESCENCE 

 N NoOH 



J 



"-+- 



360 380 400 420 440 460 480 500 520 540 560 580 



m \1 



Fig. 4. Chemihiniinescence emission spectrum of liimiiiol in 0.1 A' NaOH in- 

 itiated with HoOo -|- NaOCI, and compared with Ihc fluorescence of aminophthalic 

 acid, also at 0.1 N NaOH. 



phthalic acid. In order to check this point and to eliminate any pos- 

 sible pH-dependent rate reactions, the chemiluminescence quantum 



