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Figure 2 | BMC Research Notes

Figure 2

From: A technique for quantifying intracellular free sodium ion using a microplate reader in combination with sodium-binding benzofuran isophthalate and probenecid in cultured neonatal rat cardiomyocytes

Figure 2

In vivo calibration of SBFI. The in vivo calibration of SBFI was accomplished by exposing the myocytes to various extracellular [Na+]. Between 0 and 20 mM [Na+]i, the SBFI fluorescence ratio (F340/F380) showed a linear relationship with [Na+]i (coefficient correlation (R2) = 0.995, P = 0.0001).

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