Containers are to be labeled with the following information at the time of
collection:
1.
name of individual submitting specinen,
2.
date of collection,
3.
person's identification number,
4.
location of sampling,
5.
sex.
Prior to laboratory analysis, all sampie information must be entered in the
bioassay log and samples are to be assigned a sample analysis idencification number.
URINE SAMPLE PREPARATION FOR PHOTON SPECTROSCOPY
Sample volumes and pH are measured and recorded.
to 2.0 with concentrated nitric acid.
The pH should be adjusted
If sample volume is sufficient then 300
ml of each sample is to be placed in a 300 ml capacity sealable can (8 cm diameter x 6 cm height), labeled and gamma scanned.
Lf sample is less than 300 al,
dilute premeasured volume to capacity with distilled water and scan.
Samples are counted on a large volume lithium-drifted germanium detector.
Data output for each sample is processed, stored and analyzed using a computer
based multichannel analyzer.
Sample counting time, usually 6,000 to 10,000 sec-
onds is determined by the sample activity concentration.
Data are analyzed by
standard nuclide identification software for photon emitting radionuclides,
Data analyzed prior to 1981 used a peak search routine as developed by Cast of
LASL and Aebersold of Tennecomp Systems.
Subsequent data have been analyzed
fl
using software developed by Nuclear Data (Report #48-0004).
The MLD's for a