title: Calibration drift in the automated determination of calcium and magnesium by atomic absorption.
abstract: Calibration drift was studied in the automated on-line determination of calcium and magnesium by atomic absorption over periods of up to four hours. Automatic correlation for drift improved the precision of results.
mesh_terms: D001322:Autoanalysis; D002118:Calcium / Q000032:analysis*; D008274:Magnesium / Q000032:analysis*; D013054:Spectrophotometry, Atomic / Q000379:methods
chemical_list: D008274:Magnesium; D002118:Calcium