Development of rapid slurry methods for flame and direct current plasma emission and graphite furnace atomic absorption analysis of solid animal tissue
Studies are presented describing developments in the rapid, direct atomic spectrochemical analysis of meat samples by the technique of slurry atomization. The number of elements that can be determined in meat slurry samples has been increased and the concentration range that can be detected extended to included analysis at the part per billion as well as the percent level. Slurry atomization involves the rapid preparation procedure whereby the sample is simple homogenized with deionized distilled water prior to analysis. In this manner, rapid, quantitative analysis of hot dogs (processed meat) for dietary salt (Na, K) was achieved by premixed air-natural gas flame emission spectrometry. Quantitative analysis of mechanically separated meat for residual bone fragments (as Ca) was attained using a simple photometer when the premixed air-acetylene flame was used. The phosphate interference of the Ca emission signal was overcome by placing an insert in the spray chamber which decreased the droplet size of the aerosol reaching the flame. Slight matrix modification in the form of 2% nitric acid was necessary to solubilize the Ca from the bone fragments. Determining elements present at very low concentrations i.e. part per billion levels, in homogenized beef liver was evaluated using graphite furnace atomic absorption and shown to be viable for determinations of Pb, Cd, Cr, and Ni. Qualitative multielement analysis of several types of meat slurries by direct current plasma (DCP) emission spectrometry using both photographic and electronic modes of detection was reported for the first time.
- Research Organization:
- Kansas State Univ., Manhattan (USA)
- OSTI ID:
- 7003657
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
59 BASIC BIOLOGICAL SCIENCES
CADMIUM
ABSORPTION SPECTROSCOPY
CHROMIUM
LEAD
MEAT
QUALITATIVE CHEMICAL ANALYSIS
QUANTITATIVE CHEMICAL ANALYSIS
NICKEL
POTASSIUM
EMISSION SPECTROSCOPY
SODIUM
ATOMIZATION
EXPERIMENTAL DATA
PLASMA
SLURRIES
TRACE AMOUNTS
ALKALI METALS
CHEMICAL ANALYSIS
DATA
DISPERSIONS
ELEMENTS
FOOD
INFORMATION
METALS
MIXTURES
NUMERICAL DATA
SPECTROSCOPY
SUSPENSIONS
TRANSITION ELEMENTS
400102* - Chemical & Spectral Procedures
550200 - Biochemistry