Table of Contents
Advertisement
TECHNICAL SUPPORT,
continued
Introduction to Chemical Oxygen Demand. By Charles R. Gibbs, 1987.
Discusses methods for determining oxygen demand, digestion
procedures, measurement procedures and appropriate reagents and
apparatus.
Digestion
Acid Digestion Using the Hach Digesdahl Digestion Apparatus. Sample
Preparation for Protein and Elemental Analysis. By Scott V. Brayton, 1988.
Focuses on digestion using sulfuric acid and hydrogen peroxide, a
modification of the Kjeldahl method, which is suitable for determining a
range of metals and nonmetals including nitrogen. The digestion was
integrated into a total analytical system based on spectrophotometric
analysis. Analytes determined include: Ag, Al, Ca, Cd, Co, Cr, Cu, Fe,
K, Mg, Mn, N, Ni, Pb, P, S, and Zn. Circle number 7016.
"Accuracy in Kjeldahl Protein Analysis". By Y.S. Chen, et al. Reprinted
from American Laboratory, June, 1988.
Discusses the basis for the accuracy of the Kjeldahl method and
describes what has been achieved in establishing the absolute accuracy
for nitrogen determination using a modified Kjeldahl procedure.
Food, Feed and Beverage
"Golden Cheese Streamlines Quality Control Testing". Reprinted from
Prepared Foods.
Describes a Quality control program that provides rapid, accurate,
economical results with little personal training for a food processor.
3-4
Hide quick links:
Advertisement
Table of Contents
