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. Author manuscript; available in PMC: 2019 Jun 6.
Published in final edited form as: Org Biomol Chem. 2018 Jun 6;16(22):4176–4182. doi: 10.1039/c8ob00972d

Fig. 4.

Fig. 4

Ratiometric pH measurement in different environments. (A) Ratio of the chemiluminescence emission intensities at 650 nm and 585 nm of 60 μM 1 and 80 μM carboxy-SNARF-1 in pH 7.42 buffers containing 6%–14% Sapphire II Enhancer. (B) Ratio of the chemiluminescence emission intensities at 650 nm and 585 nm of 60 μM 1 and 80 μM carboxy-SNARF-1 in pH 7.42 buffers containing 6%–14% Emerald II Enhancer. (C) Ratio of the chemiluminescence emission intensity at 650 nm and 585 nm of 60 μM 1 and 80 μM carboxy-SNARF-1 in 20 mM PBS buffered to pH 7.4 containing 6% Emerald II Enhancer in the absence and presence of 10% fetal bovine serum (FBS).