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Concentration (mg Cinnamaldehyde Eugenol Thymol sample/200 uL) 0.50 0.4 0.65 1.8 0.75 1.0 0.8 1.10 1.2 1.25 2.0 1.30 3.0 1.50 1.5 1.90 3.1 2.0 4.6 2.50 4.0 5.8

Concentration (mg Cinnamaldehyde Eugenol Thymol sample/200 uL) 0.50 0.4 0.65 1.8 0.75 1.0 0.8 1.10 1.2 1.25 2.0 1.30 3.0 1.50 1.5 1.90 3.1 2.0 4.6 2.50 4.0 5.8

EBK A SMALL SCALE APPROACH TO ORGANIC L
EBK A SMALL SCALE APPROACH TO ORGANIC L
4th Edition
ISBN:9781305446021
Author:Lampman
Publisher:Lampman
Chapter47: Benzocaine
Section: Chapter Questions
Problem 4Q
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Cinnamon is made up of a mixture of many compounds.  Cinnamaldehyde is the component responsible for cinnamon flavor.  Several of these compounds are also a potent antimicrobial compounds present in essential oils.  The following results were obtained for known concentrations of three of the compounds.

Concentration (mg sample/200 uL)

Cinnamaldehyde

Eugenol

Thymol

0.50

 

0.4

 

0.65

 

 

1.8

0.75

1.0

0.8

 

1.10

 

1.2

 

1.25

2.0

 

 

1.30

 

 

3.0

1.50

 

1.5

 

1.90

3.1

2.0

4.6

2.50

4.0

 

5.8

 

Determine the calibration curve equations for each component including regression.

  1. which component has the highest calibration sensitivity?
  2. A sample containing the three essential oils in part b gave the peak areas relative to the internal standard of cinnamaldehyde 2.6, eugenol 0.9 and thymol 3.8. Determine the concentration of each of the oils in the sample and the standard deviations.
Concentration (mg Cinnamaldehyde Eugenol Thymol sample/200 uL) 0.50 0.4 0.65 1.8 0.75 1.0 0.8 1.10 1.2 1.25 2.0 1.30 3.0 1.50 1.5 1.90 3.1 2.0 4.6 2.50 4.0 5.8
Transcribed Image Text:Concentration (mg Cinnamaldehyde Eugenol Thymol sample/200 uL) 0.50 0.4 0.65 1.8 0.75 1.0 0.8 1.10 1.2 1.25 2.0 1.30 3.0 1.50 1.5 1.90 3.1 2.0 4.6 2.50 4.0 5.8
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