NFR - Normal Frog Ringer (500 ml) - Ready to use Sulfates (804) ppm <= 150

Sulfates (804) ppm                                                       <= 150

NaH2PO4 = 1

10x concentrate NFR solution

pH(- g/l): 7

<= 10 mg/kg Appearance of solution passes test

NFR - Normal Frog Ringer (500 ml) - Ready to use Sulfates (804) ppm <= 150Normal Frog Ringer (NFR) is used for lab experiments with Xenopus laevis oocytes to guarantee a physiological environment with respect to homeostasis, pH and osmolarity. Product information Ready to Use NFR solution autoclaved Instructions for use: Ready to use: Direct use Adjust to pH 7. 4 Use immediately once opened. Store at 4 8 C Ional composition of NFR Solution NaCl = 90 mM KCl = 2 mM CaCl2 = 2 mM MgCl2 = 1 mM HEPES = 5 mM