Measurement of magnesium by continuous-flow colorimetry
| Autor: | H W Taylor, M H Abernethy, R T Fowler, T A Walmsley |
|---|---|
| Rok vydání: | 1982 |
| Předmět: |
Calmagite
Spectrum analyzer Analyte Chemistry Magnesium Biochemistry (medical) Clinical Biochemistry Analytical chemistry chemistry.chemical_element AutoAnalyzer Colorimetry (chemical method) law.invention chemistry.chemical_compound Volume (thermodynamics) law biological phenomena cell phenomena and immunity Atomic absorption spectroscopy |
| Zdroj: | Clinical Chemistry. 28:523-525 |
| ISSN: | 1530-8561 0009-9147 |
| DOI: | 10.1093/clinchem/28.3.523 |
| Popis: | We describe the application to the Technicon SMAC system of a micellar-improved calmagite method for the measurement of magnesium. In this continuous-flow method a dialyzer is not needed, because protein interference is negligible. Sample interaction was estimated to be 3%. The increased sensitivity of the method allows for a small sample volume (37 microL/min). Results obtained agreed well with those by an atomic absorption procedure (x): SMAC magnesium - 0.971 x + 0.030 mmol/L (n = 58). The estimated total error for the SMAC procedure was less than 50 mumol/L at two analyte concentrations: 0.50 and 1.50 mmol/L. The inclusion of magnesium estimation on SMAC should extend the screening function of this analyzer. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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