I just want to ask about precipitation reaction of secondary antibody especially on goat antibody conjugate Alexa dye 594 and 488 Invitrogen. I have noticed that the method I used using 1% BSA and 3% BSA blocking , then overnight with primary has reacted to my secondary goat anti Rabbit and mouse alexa dyre 594 and 488 with too much precipitation. I tried to remove it with PBS with 0.05 tween wash overnight and the precipitate are still there. Any help would be appreciated with my technique. Thank you so much.
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