MICROBIURET ASSAY OF PROTEIN
10-Oct
MICROBIURET STANDARDIZATION
mg/mL
tube dH2O BSA A 325
B 2 0 0.000
1 1.9 0.1 0.036
2 1.8 0.2 0.074
3 1.6 0.4 0.143
4 1.2 0.8 0.278
5 0 2 0.560
Conv Factor 2.797203 mg protein/A 325 unit A 325 mg/tube mg/mL % protein
specimen dilution/susp dH2O aliquot micro- A 325 mg/tube mg/mL % protein
factor biuret
blank blank 2.0 1.0
1 saliva one 5 1.9 0.1 1.0 0 0 0
2 saliva one 5 1.0 1.0 1.0 0 0 0
3 saliva two 5 1.9 0.1 1.0
4 saliva two 5 1.0 1.0 1.0
5 solid food 100 1.9 0.1 1.0 0 0 0
6 solid food 100 1.0 1.0 1.0 0 0 0
7 liquid food 1 50 1.9 0.1 1.0 0 0 0
8 liquid food 1 50 1.0 1.0 1.0 0 0 0
9 liquid food 2 50 1.9 0.1 1.0 0 0 0
10 liquid food 2 50 1.0 1.0 1.0 0 0 0
11 BSA mg/mL 50 1.5 0.5 1.0 0 0 0
12 BSA mg/mL 50 1.0 1.0 1.0 0 0 0
solid: Purina Kitten Chow:  (0.39g/39 mL) liquid: milk
IAMS Puppy Food: (0.68 g/68 mL) egg white
egg yolk
specimen dilution/susp dH2O aliquot micro- A 325 mg/tube mg/mL % protein
factor biuret
blank blank 2.0 1.0 0.000
1 saliva WK 5 1.9 0.1 1.0 0.025 0.07 3.5 0.35
2 saliva WK 5 1.0 1.0 1.0 0.213 0.5964 2.982 0.2982
3 saliva TM 5 1.9 0.1 1.0 0.159
4 saliva TM 5 1.0 1.0 1.0 0.641
5 cat food 100 1.9 0.1 1.0 0.190 0.532 532 53.2
6 cat food 100 1.0 1.0 1.0 1.140 3.192 319.2 31.92
7 milk 50 1.9 0.1 1.0 0.101 0.2828 141.4 14.14
8 milk 50 1.0 1.0 1.0 0.635 1.778 88.9 8.89
9 egg white 50 1.9 0.1 1.0 0.087 0.2436 121.8 12.18
10 egg white 50 1.0 1.0 1.0 0.623 1.7444 87.22 8.722
11 BSA mg/mL 50 1.5 0.5 1.0 0.255 0.714 71.4 7.14
12 BSA mg/mL 50 1.0 1.0 1.0 0.395 1.106 55.3 5.53
solid: Purina Kitten Chow:  (0.39g/39 mL) liquid: milk
IAMS Puppy Food: (0.68 g/68 mL) egg white
egg yolk