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