DNA级EDTA溶液,0.5M,pH8.0 图片

p1Src=//y2.yzimgs.com/uploads/508782/2017421-105118648.jpg?watermark/2/text/5LiK5rW35L-h6KOV55Sf54mp5oqA5pyv5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/300/fill/I0E3QTlBOA==/gravity/SouthEast"