1. It is not possible to use a glycocoll buffer (quantitative reaction with the reagent) and ammoniacal buffers cannot be used for quantitative purposes.

2. Albumoid 0 0.8 0.2 5.3 0.5 4.6 3.6 1.9 4.6 + + 3.1 } (cystine only) 0.6 2.74 10.26 3.8 6.0 Tyrosine and trv-ptophane are present in each of the proteins, while glycocoll is absent from them all