1. Purine Bases and Pyrimidine Bases (4) (DE-413)
2. Purine Bases and Uric Acid Separation (GS-320 HQ)
3. Purine Base in Beer (GS-320 HQ)
4. Purine Bases, Pyrimidine Bases and Nucleosides (1) (DE-613)
5. Purine Bases, Pyrimidine Bases and Nucleosides (2) (NN-814)
6. Bases, Nucleosides and Nucleotides
7. Purine Bases and Pyrimidine Bases (3) (DE-613)
8. Guanine and TryptophanGuanine and Tryptophan (DM-614, NN-814 and DE-613)
9. Adenosine and Derivatives
10. Nucleotides (2) (GS-320 HQ)