CONTENTS 



PAGE 



To the Student xi 



General Directions of Work xiii 



PART I. GENERAL METHODS 



Measuring Instruments 1 



Calibration of Volumetric Apparatus 2 



Use of Pycnometers 4 



Use of Balance 4 



Indicators 6 



Acidimetry and A Ikalimetry 10 



Standardization of Oxidizing Solutions 15 



PART II. METHODS FOR THE ANALYSIS OF URINE 



Acidity by Titration 21 



Titration of Organic Acids 22 



Hydrogen Ion Concentration or True Acidity (Henderson and Palmer) . . 25 



Hydrogen Ion Concentration (Haskin) 27 



Total Solids 



Drying Method 32 



Long's Coefficient 32 



Total Nitrogen 



Kjeldahl Method 33 



Kjeldahl Method Simplified 34 



Kjeldahl Micro Method 36 



The Colorimeter 37 



Urea Methods 



Urease Methods (Van Slyke and Cullen) 38 



Urease Methods (Marshall) 40 



Urease Methods (Folin) 41 



Ammonia 



Folin's Method 42 



Micro Method 44 



Creatinine 



Folin's Colorimetric Method 44 



Folin's Micro Method 46 



Shaffer's Method for Dilute Solutions . . 47 



