Apparatus for destructive oxidation of organic material in the determination of metals in foods

1930 ◽  
Vol 2 (1) ◽  
pp. 107-108 ◽  
Author(s):  
J. W. Barnes
Keyword(s):  
Organic Material ◽  
Destructive Oxidation

scholarly journals Polarographic Determination of Traces of Metals in Organic Material. Determination of Pb, Cu, Cd, Ni, Zn, and Fe.

1953 ◽  
Vol 7 ◽  
pp. 956-968 ◽  
Author(s):  
Erik Wåhlin ◽  
Ulf Lagerkvist ◽  
Rainer Pesola ◽  
Artturi I. Virtanen ◽  
Nils Andreas Sörensen
Keyword(s):  
Organic Material ◽  
Polarographic Determination

Superconducting Lenses for Steric Structure Determination of Organic Material in the Electron Microscope

1983 ◽  
Vol 96 (1) ◽  
pp. 293-303 ◽  
Author(s):  
Erwin Knapek ◽  
Guy Lefranc ◽  
Wolfgang v. Gentzkow ◽  
Isolde Dietrich ◽  
Helmut Formanek
Keyword(s):  
Electron Microscope ◽  
Structure Determination ◽  
Organic Material ◽  
Steric Structure

Determination of trace elements in organic material by the oxygen bomb method

1968 ◽  
Vol 40 (13) ◽  
pp. 2031-2033 ◽  
Author(s):  
Shizuo. Fujiwara ◽  
Hisatake. Narasaki
Keyword(s):  
Trace Elements ◽  
Organic Material ◽  
Oxygen Bomb ◽  
Bomb Method

Simplified batch equilibration for D/H determination of non-exchangeable hydrogen in solid organic material

2009 ◽  
Vol 23 (7) ◽  
pp. 949-956 ◽  
Author(s):  
Peter E. Sauer ◽  
Arndt Schimmelmann ◽  
Alex L. Sessions ◽  
Katarina Topalov
Keyword(s):  
Organic Material ◽  
Batch Equilibration ◽  
Exchangeable Hydrogen

1966 Collaborative Study on the Determination of Iron in Fertilizer by Dichromate Titration

1967 ◽  
Vol 50 (2) ◽  
pp. 397-400
Author(s):  
William J Ingram
Keyword(s):  
Sample Preparation ◽  
Organic Material ◽  
Organic Fertilizer ◽  
Collaborative Study ◽  
Titration Method

Abstract Iron can be determined by direct dichromate titration or otber metbods after perchloric oxidation. Perchloric oxidation does not destroy all organic material and gives acceptable results. High values of P205, K20, and NH4N03 do not interfere. Average collaborative values for iron by dichromate titration are: 12% iron, found 12.08%; 2.65% organic fertilizer, found 2.58%; 2.50% iron (with 30% P2O5 ), found 2.49%; 1.0% iron (57.5% NH4- NO3), found 1.06%; 0.18% iron, found 0.19%. It is recommended that the dichromate titration method be adopted as official, first action, and that furtber study be made on methods of sample preparation

Automated Determination of Protein-Nitrogen in Cereals and Grains

1977 ◽  
Vol 60 (6) ◽  
pp. 1238-1242
Author(s):  
Robert N Revesz ◽  
Norman Aker
Keyword(s):  
Thermal Conductivity ◽  
High Temperature ◽  
Organic Material ◽  
Combustion Products ◽  
Direct Reading ◽  
Protein Nitrogen ◽  
Operational Characteristics ◽  
Temperature Sample ◽  
Automated Determination

Abstract This paper presents the design, performance, and operational characteristics of a new direct reading instrument for determining nitrogen in cereal and grain. Precision, accuracy, range, speed, ease of operation, sensitivity, sample size, and flexibility of the instrument are presented. Results on various cereals and grains are presented and compared with those obtained by the Kjeldahl technique. The apparatus is the result of research for a rapid method for determining nitrogen in organic material. The instrument uses a combination of a unique high temperature sample oxidation, a sampling valve for separating combustion products, and thermal conductivity detection for the liberated nitrogen in a helium carrier gas.

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