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. Author manuscript; available in PMC: 2011 Aug 1.
Published in final edited form as: Appl Spectrosc. 2011 Feb 1;62(2):206–215. doi: 10.1366/10-06052

Fig. 2.

Fig. 2

Linearity of lamp intensity for (A) System 1 (USB+HL), (B) System 2 (USB+LED), and (C) System 3 (Ava+HL) with different integration times. In each plot, stars, diamonds and triangles represent data at 460 nm, 550 nm, and at 610 nm, respectively. (D) The spectral profile of the two light sources (dashed line: LED; solid line: halogen).