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liuxus20030704

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[求助] 上一个求助贴里没上传的图片

E280 = specific extinction coefficient at 280nm assessed with the graphic method (absorbance corresponding to the segment, parallel to the y-axis, starting from the peak maximum at 280 nm and finishing on the tangent joining the points of minimum at the left and at the right of the peak).

请问the graphic method 中是如何得到E280 specific extinction coefficient ?不知道怎么画图和计算?急用,谢谢!
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