CHM 410 midterm 2009 - __________________________ Name CHM...

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Unformatted text preview: __________________________ Name CHM 410 / ENV 1410 Analytical Environmental Chemistry Midterm Exam Fall, 2009 52 marks over 8 questions on 5 pages. No external devices (ie. calculators) are permitted. Marks for the test are allocated on a mark-a-minute basis, so please judge the amount of detail required based on the number of marks allocated for each question. 1 Question 1. Describe how you would choose between the following. For example : Collect 100 mL or 10 000 mL of water for analysis? This decision is based on the detection limits of the instrument used for analysis and the expected concentration present in the water. (a) GC or LC analysis? (2 marks) (b) Split or splitless GC injection? (2 marks) (c) SPE or liquid-liquid extraction of a water sample? (2 marks) (d) FID or ECD for GC detection? (2 marks) (e) LC isocratic or gradient elution? (2 marks) 2 Question 2. As an analyst at a commercial lab your boss has asked you to analyze human sera for the potent carcinogen 2-napthylamine...
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This note was uploaded on 01/05/2012 for the course CHM 410 taught by Professor - during the Fall '11 term at University of Toronto- Toronto.

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CHM 410 midterm 2009 - __________________________ Name CHM...

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