This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Suppose an organic compound has a higher heat conductivity than the carrier gas. How would its GC ... (Read 77 times)

cherise1989

  • Hero Member
  • *****
  • Posts: 555
on: Aug 23, 2018

Suppose an organic compound has a higher heat conductivity than the carrier gas. How
  would its GC signal appear on a chromatogram run on an instrument with
  (a) a thermal conductivity detector?
  (b) a flame ionization detector?



Question 2

Alcohols have very long retention times on Carbowax columns. Why? (Hint: Consider the
  polarity of alcohols.)



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

orangecrush

  • Sr. Member
  • ****
  • Posts: 350
Reply #1 on: Aug 23, 2018
Answer to Question 1

(a) The signal will appear as a dip from the baseline instead of a peak rising from the baseline
because the sample arm becomes cooler (instead of hotter) relative to the feference arm in
the Wheatstone bridge.
(b) The signal will appear as a normal peak because a flame ionizaiton detector is not affected
by thermal conductivity.



Answer to Question 2

Alcohols can form hydrogen bounds with the oxygen atoms in a Carbowax.


cherise1989

  • Hero Member
  • *****
  • Posts: 555
Reply #2 on: Aug 23, 2018
TY


orangecrush

  • Sr. Member
  • ****
  • Posts: 350
Reply #3 on: Aug 23, 2018
You're welcome


« previous next »
 

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Striking examples where high surface area releases heat. Striking examples where high surface area releases heat.
Introduction to Organic Compounds Introduction to Organic Compounds
In older adults, higher education is related to higher levels of ego development. In older adults, higher education is related to higher levels of ego development.
Instruct recipient on giving you feedback immediately if heat becomes too intense. Remind the person ... Instruct recipient on giving you feedback immediately if heat becomes too intense. Remind the person ...
A compound of iron and sulfur crystallizes in a lattice pattern described as cubic closest ... A compound of iron and sulfur crystallizes in a lattice pattern described as cubic closest ...
A variety of organic compounds from food can enter the reactions of aerobic respiration. A variety of organic compounds from food can enter the reactions of aerobic respiration.
Video: Plant Defense Mechanisms from Pathogens

For a complete list of videos, visit our video library