Automatic Titration of Fecal Indicator Chromium and Micro-Kjeldahl Nitrogen

Coulometric Determination of Protein Nitrogen. Application to Direct Titration of Kjeldahl Digests.

A coulometric method is described for the determination of ammonia resulting from micro-Kjeldahl digestion of protein samples. The method has been applied to the direct titration of the ammonia in the digests. Routine titration of the ammonia resulting from lOsl. serum samples is described; the method has been applied to 1 -JLI. samples. Results are compared with standard macroand micro-Kjeldah...

The Estimation of Non-Protein Nitrogen in Blood by a Micro-Kjeldahl Method.

Adaptation of the Micro-kjeldahl Method for the Determination of Nitrogen in Plant Tissues.

The micro-Kjeldahl method for nitrogen determination has been widely used in organic chemistry laboratories in recent years. The value of this method, developed through the brilliant researches of PiLcH, BANG, PARNAS and WAGNER, PREGL, and coworkers, has justified its application to industrial and clinical problems. Plant physiologists have not generally adopted quantitative micro-methods for n...

Ultramicro- and micro-determination of chloride by argentimetric titration with the indicator dichlorofluorescein.

A reliable ultramicro modification of the Franco and Klein (1) determination for chloride, using 20 pi. of plasma, is described. A second procedure, requiring 0.2 ml. of plasma and substituting a titrating syringe for a buret, is suggested as a fast and adequate substitute in the absence of either extensive laboratory facilities or trained personnel. Data on reproducibility and recovery, and a ...

A Simplified Ultra-micro Kjeldahl Method for the Estimation of Protein and Total Nitrogen in Fluid Samples. of Less Than