Thank you sir.. Since Liraglutide is a Peptide nature drug , there must be some stability issues associated with it. That's Why i need to know a slovent in which the drug solubilizes as well as it should remain stable .

Here is the link, i think this will helpful to you

http://www.google.com/patents/US20150051372

thank you sir

 what precautions should be taken while create an HPLC curve to proteins like Liraglutide??and what is the suitable mobile phase for Liraglutide?

You can use the same buffer of Victoza at the pH of 8.15. In pH about 7.0 it is not soluble.