On the importance of the use of proper approaches for comparison of analytical methods for serum nitrate and for evaluation of reference concentrations

Clinical Biochemistry

Volumn 42, Issue 10-11, 2009, Pages 1200-1201

  Tsikas, Dimitrios ^a   Hohlfeld, Jens M ^a  

^a HANNOVER MEDICAL SCHOOL   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

BIOLOGICAL MARKER; NITRATE; NITRIC OXIDE;

ANALYTIC METHOD; ASSAY; BLOOD LEVEL; CHEMOLUMINESCENCE; COMPARATIVE STUDY; GRIESS ASSAY; HIGH PERFORMANCE LIQUID CHROMATOGRAPHY; HUMAN; LETTER; LINEAR REGRESSION ANALYSIS; MASS FRAGMENTOGRAPHY; MEASUREMENT; NONHUMAN; OXIDATIVE STRESS; PRIORITY JOURNAL; RELIABILITY; ULTRAVIOLET SPECTROSCOPY; URINE LEVEL;

ANALYTIC SAMPLE PREPARATION METHODS; ANIMALS; CHROMATOGRAPHY, HIGH PRESSURE LIQUID; HUMANS; MICE; NITRATES; NITRIC OXIDE; REFERENCE VALUES; REGRESSION ANALYSIS; SMOKING;

EID: 67349128601     PISSN: 00099120     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.clinbiochem.2009.01.026     Document Type: Letter

References (12)

1. Larsen T.L., Nilsen V., Andersen D.A., et al. Comparison of high-pressure liquid chromatography (HPLC) and Griess reagent-spectroscopic methods for the measurement of nitrate in serum from healthy individuals in the Nordic countries. Clin. Biochem. 41 (2008) 1474-1481
2. Everett S.A., Dennis M.F., Tozer G.M., et al. Nitric oxide in biological fluids: analysis of nitrite and nitrate by high-performance liquid chromatography. J. Chromatogr. A 706 (1995) 437-442
3. Tsikas D. Analysis of nitrite and nitrate in biological fluids by assays based on the Griess reaction: appraisal of the Griess reaction in the l-arginine/nitric oxide area of research. J. Chromatogr. B 851 (2007) 51-70
4. Tsikas D., Gutzki F.M., and Stichtenoth D.O. Circulating and excretory nitrite and nitrate as indicators of nitric oxide synthesis in humans: methods of analysis. Eur. J. Clin. Pharmacol. 62 (2006) 51-59
5. Passing H., and Bablok W. A new biometric procedure for testing the equality of measurements from two different analytical methods. Application of linear regression procedures for method comparison studies in clinical chemistry. Part I J. Clin. Chem. Clin. Biochem. 21 (1983) 709-720
6. Bland J.M., and Altman D.G. Statistical methods for assessing agreement between two methods of clinical measurement. Lancet 1 (1986) 307-310
7. Tsikas D. Methods of quantitative analysis of the nitric oxide metabolites nitrite and nitrate in biological fluids. Free Radic. Res. 39 (2005) 797-815
8. Romitelli F., Santini S.A., Chierici E., et al. Comparison of nitrite/nitrate concentration in human plasma and serum samples measured by the enzymatic batch Griess assay, ion-pairing HPLC and ion-trap GC-MS. The importance of a correct removal of proteins in the Griess assay. J. Chromatogr. B 851 (2007) 257-267
9. Bablok W., and Passing H. Application of statistical procedures in analytical instrument testing. J. Autom. Chem. 7 (1985) 74-79
10. Tsikas D. Simultaneous derivatization and quantification of the nitric oxide metabolites nitrite and nitrate in biological fluids by gas chromatography/mass spectrometry. Anal. Chem. 72 (2000) 4064-4072
11. 2α. Possible methodological, mechanistic and clinical implications. J. Chromatogr. B 794 (2003) 237-255
12. Schwedhelm E., Benndorf E.A., Böger R.H., et al. Mass spectrometric analysis of F2-isoprostanes: markers and mediators in human disease. Curr. Pharmac. Anal. 3 (2007) 39-51