668 



INDEX 



Phosphatase, 9 

 Phosphatese, 9 



Phosphatides, 206, 299, 329, 370, 425 

 Phosphocarnic acid, 358, 364, 387, 416 

 Phosphonuclease, 135 

 Phosphoproteins, 94, 95, 112, 329 

 Phosphorized compounds in urine, 387, 416 

 Phosphorus in urine, determination of, 568 



organic, test for, 128 



Phosphotungstic acid reaction (Folin), 398 

 precipitation test for proteose 



(v. Aldor), 443 



Physiological constituents of urine, 386 

 Phytase, 5 



Phytin, 5 



Picric acid reaction for creatinine (Jaffe), 402 



test for glucose, 29 



Pigments of urine, 376, 387, 417, 466, 467 

 Pine wood test for indole, 222 

 Piria's test for tyrosine, 85 

 Plasma of blood, 248 



of muscle, 357, 364 

 Plasmaphaeresis, 252 

 Polariscope, use of, 31 



in detection of conjugate glycuronates, 



457 



0-hydroxybutyric acid, 456 

 in determination of glucose, 31, 549 

 Polypetides, 65, 69, 95 

 Polysaccharides, 20, 42 

 classification of, 20 

 properties of, 42 



Posner's modification of biuret test, 100 

 Potassium hydroxide test for blood in urine 



(Heller), 446 

 Potassium hydroxide testfor pus in urine (Donn6), 



448 

 indoxyl-sulphate (see Indican, pp. 215, 403, 



558) 



determination of, 558 

 formula for, 215, 404 

 origin of, 215, 403 

 tests for, 404, 405 

 Potassium in urine, 387, 427, 576 



quantitative determination of, 576 

 Powdered milk, 329 



Primary protein derivatives, 64, 94, H3. 

 Primary proteoses, 118 



Products of protein hydrolysis, 64, 66, 67, 68, 70, 

 . 189 

 Prolamins, 93, no 



classification of, 93 

 preparation of, in 

 tests on, in 

 Proline, 64, 66, 67, 82, no, 141, 189 



crystalline form of copper salt of, 83 

 crystalline form of laevo-a-, 83 

 Prosecretin, 188 

 Protagon, 370, 371 



preparation of, 373 

 structure of, 372 



Protamines, classification of, 93, 95 

 Proteans, 95, H3 

 Protease, gastric, 5. 12, 140, 144 

 experiments on, 12, 144 

 pancreatic, 5, 12, 189 



experiments on, 12, 192 

 vegetable, 5, 13 



Proteases, 5, 12 



experiments on, 12 



Protective enzymes (see Defensive Enzymes, 3) 

 Proteid (see Proteins) 

 Protein content of foods, 602 



derivatives, primary, 64, 94, 113 



secondary, 64, 95, 117 

 metabolism, time relations of, 602 



influence of water on, 607 

 utilization, determination of, 623 

 Protein-coagulating enzymes, 5, 142, 192, 259, 



331 



Protein-cystine, 76 

 Protein-sparing action of fat and carbohydrate, 



612 

 Proteins, 62, 91, 430, 438 



acetic acid and potassium ferro-cyanide test 



for, 103 



action of alkaloidal reagents on, 102 

 of metallic salts on, 102 

 mineral acids, alkalies and organic acids 



on, 102 



biuret test on, 99 

 chart for use in review of, 120 

 chemical composition of, 62 

 classification of, 93, 95 

 coagulated, 95, "5 



biuret test on, 117 

 formation of, 115 

 Hopkins-Cole reaction on, 117 

 Millon's reaction on, 117 

 quantitative determination of, 550 

 solubility of, 117 

 xanthoproteic reaction on, 117 

 coagulation, influence of salts upon, 116 

 coagulation or boiling test for, 104 

 color reactions of, 97 

 conjugated, 94, 95, i 122 

 classes of, 94, in 



experiments on, 58, 127, 269, 300, 339 

 nomenclature of, 94, in 

 occurrence of, 94, in 

 decomposition of, 63, 66, 67 

 by hydrolysis, 64 

 by oxidation, 63 

 products of, 63, 66, 67, 70 

 experiments on, 84 

 separation of, 84. 

 study of, 63, 66, 84 

 derived, 94, 113 

 formation of fat from, 182 

 formulas of, 63 

 Heller's ring test on, 102 

 Hopkins-Cole reaction on, 98 

 importance of, to life, 62 

 in urine, 430, 438, 550 



determination of, 550 

 test for, 439 

 Millon's reaction on, 97 

 of milk, 336, 339, 345, 346 

 molecular weights of, 63 

 ninhydrin reaction on, 100 

 Posner's reaction on, 100 

 precipitation of, by alcohol, 105 

 alkaloidal reagents, 102 

 metallic salts, 102 

 mineral acids, 102 

 precipitation reactions of, 101 



