Acylated ghrelin measurement - (Feb/25/2008 )

I try to measure the plasma level of acylated ghrelin, but I'm not sure about the blood sample collection. Anybody can help me!!!. I wanna know, what kind of anti-coagulant that is suitable for blood sample collection of acylated ghrelin? I will be waiting for your help.

I try to measure the plasma level of acylated ghrelin, but I'm not sure about the blood sample collection. Anybody can help me!!!. I wanna know, what kind of anti-coagulant that is suitable for blood sample collection of acylated ghrelin? I will be waiting for your help.