An analyzer for the determination of protein concentration in corn

Conference · Wed Jan 01 00:00:00 EST 1992 · Transactions of the American Nuclear Society; (United States)

OSTI ID:6340999

Nazarov, V M; Ostrovnaya, T M; Pavlov, S S; Sysoev, V P ^[1]

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1. Joint Institute for Nuclear Research, Moscow (Russian Federation)

A neutron capture gamma-ray analyzer has been constructed for rapid determination of protein concentration in corn. In contrast to the well-known methods of protein determination (e.g., chemical method of Kjeldahl, infrared method), the present method uses large volume samples and does not require special sample preparation, thereby achieving a measurement time reduction by several times. The neutron capture gamma-ray analysis is based on the determination of nitrogen because the protein concentration is directly proportional to the nitrogen concentration with different proportionality constant for different types of corn. Fast neutrons from a [sup 252]Cf neutron source are moderated by the corn itself to thermal energies. The measurement chamber is a sphere with double walls. The spherical annulus is filled with a biological shield. The sample is placed inside the inner sphere, and the neutron source is placed at the center of the sample sphere.

• OSTI ID: 6340999
• Report Number(s): CONF-920919-; CODEN: TANSAO
• Journal Information: Transactions of the American Nuclear Society; (United States), Vol. 65:1; Conference: 2. topical meeting on industrial radiation and radioisotope measurement applications, Raleigh, NC (United States), 8-11 Sep 1992; ISSN 0003-018X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
MAIZE
MEASURING METHODS
PROTEINS
CALIFORNIUM 252
GAMMA DETECTION
GAMMA SPECTROMETERS
NAI DETECTORS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
CALIFORNIUM ISOTOPES
CEREALS
DETECTION
EVEN-EVEN NUCLEI
GRAMINEAE
HEAVY NUCLEI
ISOTOPES
LILIOPSIDA
MAGNOLIOPHYTA
MEASURING INSTRUMENTS
NUCLEI
ORGANIC COMPOUNDS
PLANTS
RADIATION DETECTION
RADIATION DETECTORS
RADIOISOTOPES
SCINTILLATION COUNTERS
SOLID SCINTILLATION DETECTORS
SPECTROMETERS
SPONTANEOUS FISSION RADIOISOTOPES
YEARS LIVING RADIOISOTOPES
440103* - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation