A simple method for determination of serum catalase activity and revision of reference range

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Abstract

A rapid, cost-efficient, spectro-photometric assay for serum catalase activity was developed. It was a combination of optimized enzymatic conditions and the spectrophotometric assay of hydrogen peroxide based on formation of its stable complex with ammonium molybdate. Lipemic and icteric sera increased the absorbance without influencing the catalase assay. Due to the high catalase activity in erythrocytes artificial hemolysis increased serum catalase activity. The imprecision of the method was CV <5.8% within run as well and day-to-day. The catalase assay performed using polarographic and spectrophotometric determination of hydrogen peroxide yielded a good correlation (r = 0.9602, b = 1.011, a = -0.648, n = 440). In 742 healthy individuals the mean and SD values of serum catalase were 50.5 ± 18.1 kU/l with 17.7% higher activity in males than in females. Between 14-60 yr the serum catalase increased with age.

Original languageEnglish
Pages (from-to)143-151
Number of pages9
JournalClinica Chimica Acta
Volume196
Issue number2-3
DOIs
Publication statusPublished - Feb 15 1991

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Catalase
Reference Values
Serum
Assays
Hydrogen Peroxide
Blood Substitutes
Hemolysis
Costs and Cost Analysis
Costs

Keywords

  • Age and sex dependence
  • Hydrogen peroxide and ammonium molybdate, complex of
  • Reference interval
  • Serum catalase

ASJC Scopus subject areas

  • Biochemistry
  • Clinical Biochemistry

Cite this

A simple method for determination of serum catalase activity and revision of reference range. / Góth, L.

In: Clinica Chimica Acta, Vol. 196, No. 2-3, 15.02.1991, p. 143-151.

Research output: Contribution to journalArticle

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