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. 2013 Mar 15;8(8):686–692. doi: 10.3969/j.issn.1673-5374.2013.08.002

Figure 2.

Figure 2

Immobilization efficiency of acetylcholinesterase (AChE) antibody on the gold surface of the quartz crystal microbalance (QCM) device.

Frequency change (ΔF) (Hz) after immobilization was measured and calculated. The data are expressed as mean ± SD, n = 3. aP < 0.05, vs. 25 μg/mL AChE antibody group; bP < 0.05, vs. 50 μg/mL AChE antibody group using a two-tailed Student's t-test.