Development of an assay for urinary free cortisol determination on the Technicon Immuno 1® system

Clinical Biochemistry

Volumn 30, Issue 6, 1997, Pages 473-477

  Letellier, Marc ^a   Lévesque, Ann ^a   Daigle, Francine ^a  

^a CENTRE HOSPITALIER UNIVERSITAIRE DE SHERBROOKE   (Canada)

Author keywords

Correlation; Enzyme immunoassay; Precision; Random access analyzer; Reference values

Indexed keywords

HYDROCORTISONE;

ADRENAL CORTEX FUNCTION; ANALYZER; ARTICLE; CROSS REACTION; CUSHING SYNDROME; ENZYME IMMUNOASSAY; HUMAN; HUMAN CELL; HYDROCORTISONE BLOOD LEVEL; HYDROCORTISONE RELEASE; HYDROLYSIS; PRIORITY JOURNAL; PULSATILE FLOW; REFERENCE VALUE;

CROSS REACTIONS; EVALUATION STUDIES; FEMALE; HUMANS; HYDROCORTISONE; LINEAR MODELS; MALE; RADIOIMMUNOASSAY; REFERENCE VALUES; SENSITIVITY AND SPECIFICITY; URINALYSIS;

EID: 18844471524     PISSN: 00099120     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0009-9120(97)00053-2     Document Type: Article

References (13)

1. Mattingley D, Dennis DM, Pearson J, Cope CL. Rapid screening test for adrenocortical function. Lancet 1964; ii: 1046-9.
2. Eddy RL, Jones Al, Gilliland PF, et al. Cushing's syndrome: a prospective study of diagnostics methods. Am J Med 1973; 55: 621-30.
3. Espiner EA. Urinary cortisol excretion in stress situation and in patients with Cushing's syndrome. J Endocrinol 1966; 35: 29-44.
4. Moore A, Aitken R, Burke C, et al. Cortisol assays: guidelines for the provision of a clinical biochemistry service. Ann Clin Biochem 1985; 22: 435-54.
5. Letellier M, Lévesque A, Daigle F, Grant A. Performance evaluation of automated immunoassays on the Technicon Immuno 1® system. Clin Chem 1996; 42: 1695-701.
6. NCCLS tentative guideline EP5-T2. Evaluation of precision performance of clinical chemistry devices. Villanova: National Committee for Clinical Laboratory Standards, 1992.
7. NCCLS proposed guideline EP6-P. Evaluation of the linearity of quantitative analytical methods. Villanova: National Committee for Clinical Laboratory Standards, 1986.
8. NCCLS proposed guideline C28-P. How to define, determine and utilize reference intervals in the clinical laboratory. Villanova, PA: National Committee for Clinical Laboratory Standards, 1992.
9. Schöneshöfer M, Fenner A, Dulce HJ. Interferences in the radioimmunological determination of urinary free cortisol. Clin Chim Acta 1980; 101: 125-34.
10. Gough RM, Ellis G. The radioimmunoassay of cortisol in urine. Difficulties experienced in the development of an assay, and problems of specificity observed with commercial reagents supplied as kits. Clin Biochem 1981; 14: 74-81.
11. Murphy BEP, Okouneff LM, Klein GP, Ngo SC. Lack of specificity of cortisol determination in human urine. J Clin Endocrinol Metab 1981; 53: 91-9.
12. Schöneshöfer M, Kage A, Eisenschmid B, Heilmann P, Dhar TK, Weber B. Automated liquid chromatographic determination of the 20-dihydro isomers of cortisol and cortisone in human urine. J Chromat 1986; 380: 267-74.
13. Lewbart ML, Elverson RA. Determination of urinary free cortisol and cortisone by sequential thin layer and high-performance liquid chromatography. J Steroid Biochem 1982; 17: 185-90.