Population
Three commercial brands of the Ca chelator EGTA [ethyleneglycol-bis-N,N'-tetraacetic acid]
Design
Other
Authors
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Requires EGTA corrections for accurate Ca2+ calculations; extends prior buffer methods in physiological research.
Accounting for EGTA purity, hydration, ionic strength, and pH is necessary for accurate calculation of calcium ion concentrations in physiological solutions.
Miller et al. (1984) studied this question.