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Analytical |
Analytical
Research Services
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Over
the years, a great deal of time has been devoted by research scientists
toward developing a better understanding of the principles of nutrition
and applying these principles toward producing a superior product. These
accomplishments have been made with sound laboratory techniques and a well
trained staff of scientists and technicians capable of providing the necessary
expertise to accomplish the task.The
Poultry Research Laboratory ( PRL ), located in the Livestock
Poultry Building, offers its analytical services and expertise to the research
community of the College of Agriculture. Researchers and organizations
outside the College of Agriculture and University community can be served
on a specialized case basis.The laboratory is designed
to help support the many researchers who have a need for the same type
of analytical services. The primary goal of the laboratory is to return
quality analytical results as rapidly as possible, using the most up to
date, and accurate methods and equipment available, for an economical fee.Whenever possible, the analytical methods used are official methods specified by the appropriate societies such as the AOAC. When official methods are not available, the procedures are in-house developed and validated. Quality control is part of our daily operations, utilizing both external and internal controls to assure the highest quality of performance of personnel, analytical systems, and data retrieval.
These analytical services are also available to enable a researcher to initiate a research project as soon as he/she comes on board. To begin the analytical phase of a research project in the PRL, one does not have to purchase all of the equipment, set it up, research a technique, and hire an train a technician. All that is required is that you have a representative sample of the material to be analyzed.
Students visit the laboratories in undergraduate courses and participate in analytical determinations in graduate course work.
The laboratory can furnish you information on your sample within a minimum of time, serve as a source of analytical information and help with the training of your graduate student. The staff is available to answer question concerning submitting samples for analysis, sample preparation, preservation and storage.
If you would like to visit our facility or find out more about
our operation, please give me a call, Ron Etheridge 
(706)
542-0999.
The Proximate Analyses:The gas chromatograph separates compounds on the basis of their solubilities in a liquid phase attached to a solid support. The sample is injected into the gas chromatograph where it is volatilized and transported by a carrier gas through a separation column. It is then burned is a flame ionization detector, producing an electronic signal which is directly proportional to the concentration of the materials present. The PRL uses the gas chromatograph to determine the fatty acid composition of fats from different sources such as tallow, milk, butter, and feed materials. In addition the volatile fatty acid profiles of rumen fluid, fecal material and blood can also be analyzed. Call us if you need some GC work, we will use your column or purchase one that will separate the substance of interest.
Samples for mineral analysis are subjected to various treatments for solubilization, such as dry ashing, reagent extractions, and wet ashing using a variety of acid cocktails. The samples minus their organic material are analyzed using techniques such as atomic absorption, atomic emission, and colorimetric procedures. In atomic absorption the digested liquid sample is aspirated into a flame to produce free atoms of the element and the light absorbed is measured with a photometer. The amount of light absorbed at the specific wavelength of the metal is directly proportional to the concentration of the element. The concentration of 72 elements can be determined in trace amounts. In our laboratory some of the most requested analysis are for calcium, phosphorus, zinc, copper, magnesium, manganese and cadmium. Other elements of interest such as sodium, potassium and lithium can be determined by using the atomic absorption unit as an emission spectrophotometer. The technicon auto analyzer utilizes colorimetric procedures for mineral determination.
The PRL has the capability of setting up special analytical procedures
for researchers. Energy is a routine special chemical analysis using the
bomb calorimeter to measure the calorie content of samples by measuring
the heat produced by the sample upon ignition inside a steel bomb. Other
chemical analysis such as total lipid, glycogen, chromic oxide, free fatty
acids and lactic acid are available. Special chemical analyses for not
so routine procedures have been set up for phytin phosphorus, acid insoluble
ash and typsin inhibitor. For any special analytical procedure or
problem please give me a call. Ron Etheridge 706-542-0999.
Serum or plasma samples are analyzed using the technicon auto analyzer continuos flow systems. These systems automate traditional wet chemical methods releasing the technician to perform other duties. Calcium and phosphorus in bones, and blood components such as glucose are analyzed using technicon procedures.
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The PRL is a self supporting facility. The cost for analytical services depends on the cost of chemical reagents, type of analysis, type of sample, number of samples , and sample preparation required. The samples can be analyzed in single or duplicate replications, including a free repeat if results do not check within quality control guidelines. Volume discounts are available and questions concerning quantity of sample required for the analysis and sample preparation will be discussed during the initial conversation.
For price information contact Ron
Etheridge 706-542-0999.
retherid@arches.uga.edu
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Thank You.
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Primary Nutrient
Analysis: