2.7. Standards Vitamin D2 stock solution: 5.0 mg vitamin D2 standard was weighed and dissolved in methanol and transferred to a 10 ml low actinic volumetric flask and volume was made up with methanol.
2.7. Standards Vitamin D2 stock solution: 5.0 mg vitamin D2 standard was weighed and dissolved in methanol and transferred to a 10 ml low actinic volumetric flask and volume was made up with methanol.