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Whole blood, serum and deproteinized serum were stored at room temperature up to 24 h and at - 30 degrees C up to one month. The amino acid content was then determined with an automatic amino acid analyser. When whole blood is left at room temperature the concentration of citrulline, alpha-aminobutyric acid, cysteine and tryptophan remains unchanged, whereas the other amino acids show a remarkable increase or decrease. In serum stored for 24 h at room temperature, only the concentrations of aspartic and glutamic acid, serine, cysteine and phenylalanine were altered. With the exception of aspartic and glutamic acid it was possible to leave deproteinized serum up to 24 h at room temperature and up to one month at - 30 degrees C without observing a change in the concentration of the other amino acids. No change occurred, when serum was stored at - 30 degrees C for 24 h.
K Olek, and
S Uhlhaas, and
P Wardenbach, and
M Yamaguchi
July 1977,
Clinica chimica acta; international journal of clinical chemistry,
K Olek, and
S Uhlhaas, and
P Wardenbach, and
M Yamaguchi
June 1980,
Ceskoslovenska gynekologie,
K Olek, and
S Uhlhaas, and
P Wardenbach, and
M Yamaguchi
September 1976,
Archiv fur Gynakologie,
K Olek, and
S Uhlhaas, and
P Wardenbach, and
M Yamaguchi
June 1977,
Research in experimental medicine. Zeitschrift fur die gesamte experimentelle Medizin einschliesslich experimenteller Chirurgie,
K Olek, and
S Uhlhaas, and
P Wardenbach, and
M Yamaguchi
January 1981,
Strahlentherapie,
K Olek, and
S Uhlhaas, and
P Wardenbach, and
M Yamaguchi
January 1977,
Journal of clinical chemistry and clinical biochemistry. Zeitschrift fur klinische Chemie und klinische Biochemie,
K Olek, and
S Uhlhaas, and
P Wardenbach, and
M Yamaguchi
January 1978,
Acta medica Austriaca,
K Olek, and
S Uhlhaas, and
P Wardenbach, and
M Yamaguchi
December 1975,
Nihon Ketsueki Gakkai zasshi : journal of Japan Haematological Society,
K Olek, and
S Uhlhaas, and
P Wardenbach, and
M Yamaguchi
February 1977,
Journal of clinical chemistry and clinical biochemistry. Zeitschrift fur klinische Chemie und klinische Biochemie,
K Olek, and
S Uhlhaas, and
P Wardenbach, and
M Yamaguchi
February 1974,
Wiener klinische Wochenschrift,
