| http://digfir-published.macmillanusa.com/hm_custom_osu/hmlsu_wischusen_spectrophotometerf13.html | Chapter 2. Laboratory Techniques: Spectrophotometer
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| http://digfir-published.macmillanusa.com/hm_custom_osu/hmlsu_wischusen_spectrophotometerf13_dlap.xml | DLAP questions | 5167229eb11c0f7e6d000000 |