Method for determination of total nitrogen and heavy nitrogen co

Details Method for determination of total nitrogen and heavy nitrogen co Method for determination of total nitrogen and heavy nitrogen co

1975-08-26

1977-04-05

Wolk, Morris O.

Chemistry: physical processes

Physical processes

Crystallization

23232R, 23253PC, 23254R, G01N 702, G01N 718

Patent

active

040159361

ABSTRACT:
The total nitrogen content of a given specimen is determined by sealing the specimen in conjunction with copper oxide and calcium oxide in a tube under vacuum to form a sealed specimen tube, heating the sealed specimen tube and consequently causing the specimen therein to undergo combustion and generate nitrogen, subsequently placing in a vacuumized compartment the resultant sealed specimen tube now containing the generated nitrogen, breaking the tube therein so as to liberate the nitrogen from the tube interior into the compartment and measuring the volume and pressure of the nitrogen thus released in the compartment. The heavy nitrogen content of this specimen is determined by causing a part of the released nitrogen to be collected in a separate tube connected to the compartment in which nitrogen is generated. The tube in which the nitrogen gas is collected is sealed and subsequently the heavy nitrogen concentration in the sealed nitrogen tube is measured by an ordinary method.

REFERENCES:
patent: 3241922 (1966-03-01), Walisch
patent: 3304159 (1967-02-01), Hinsvark
patent: 3451779 (1969-06-01), Hozumi
patent: 3877875 (1975-04-01), Jones
K. Hozumi et al., Anal. Chem., 35(10), 1522-1527 (1963).
K. Hozumi, Anal. Chem., 38(4), 641-644 (1966).
"Tech. of Org. Chem.", vol. III, A. Weissberger, Ed., 285, 296-298, 303-304, 316, 353, 355, 362-363, Interscience, 1957.
Fisher Modern Laboratory Appliances Catalog 63, p. 960, 1962.

Affiliated with

Also associated with

Rating

Method for determination of total nitrogen and heavy nitrogen co does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for determination of total nitrogen and heavy nitrogen co, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determination of total nitrogen and heavy nitrogen co will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2264132