On accuracy and precision of a HPLC method for measurement of urine porphyrin concentrations

Clinical Chemistry and Laboratory Medicine

Volumn 38, Issue 3, 2000, Pages 227-230

  Zuijderhoudt, Floris M J ^a   Koehorst, Stephan G A ^a   Kluitenberg, Willem E ^a   Dorresteijn de Bok, Jenneke ^a  

^a DEVENTER HOSPITAL   (Netherlands)

Author keywords

Calibration of standards; Nfluence of type of porphyria on test results; Recovery of porphyrins

Indexed keywords

COPROPORPHYRIN; PORPHYRIN; UROPORPHYRIN;

ACCURACY; ARTICLE; CALIBRATION; CONTROLLED STUDY; HIGH PERFORMANCE LIQUID CHROMATOGRAPHY; HUMAN; MEASUREMENT; PORPHYRIA; PRIORITY JOURNAL; STANDARD; URINE LEVEL;

EID: 0034080406     PISSN: 14346621     EISSN: None     Source Type: Journal    
DOI: 10.1515/CCLM.2000.033     Document Type: Article

References (11)

1. Elder GH, Smith SG, Smyth SJ. Laboratory investigation of the porphyrias. Ann Clin Biochem 1990; 27:395-412.
2. Lim CK, Peters TJ. Urine and faecal porphyrin profiles by reversed-phase high-performance liquid chromatography in the porphyrias. Clin Chim Acta 1984; 139:55-63.
3. Johnson PM, Perkins SL, Kennedy SW. A high-speed liquid-chromatographic method for measuring urinary prophyrins. Clin Chem 1988; 34:103-5.
4. Gray CH, Lim CK, Nicholson DC. The differentiation of the porphyrias by means of high pressure liquid chromatography. Clin Chim Acta 1977; 77:167-78.
5. Beukeveld GJJ, Wolthers BG, van Saene JJM, de Haan THIJ, de Ruyter-Buitenhuis LW, van Saene RHF. Patterns of porphyrin excretion in feces as determined by liquid chromatography; reference values and the effect of flora suppression. Clin Chem 1987; 33:2164-70.
6. Beukeveld GJJ, Nagel GT, de Ruyter-Buitenhuis LW, Kwarts EW, Wolthers BG. Determination of porphyrins in blood, urine and faeces by means of HPLC and its application in establishing porphyrias. Biochim Clin 1987; 11:203-13.
7. Allen KR, Rushworth PA, Degg TJ, Barth JH. Measurement of urinary porphobilinogen and porphyrins: preliminary data from a pilot QA scheme. Ann Clin Biochem 1997; 34:553-5.
8. Steigstra H, Jansen RTP, Baadenhuysen A. Combi Scheme: New combined internal - external quality assessment scheme in the Netherlands. Clin Chem 1997; 37:1196-1204.
9. Committee on Specifications and Criteria for Biochemical Compounds, Division of Chem. and Chem. Technol., National Research Council. Porphyrins and related compounds. In: Specifications and criteria for biochemical compounds. 3rd ed. Washington, DC: National Academy of Sciences, 1972:185-203.
10. Zuijderhoudt FMJ, Dorresteijn - de Bok J, te Velde K. Evaluation of a first-line spectrophotometric screening test for increased urine porphyrin excretion. Ann Clin Biochem 1995; 32:186-9.
11. Schreiber WE, Raisys VA, Labbé R. Liquid-chromatographic profile of urinary porphyrins. Clin Chem 1983; 29:527-30.