Below is a chromatogram observed from chemical separation of chlorinated pesticides using gas chromatography. Water samples were pre-treated using solvent extraction technique prior to injection into GC. Complete the statements below so that the sentences will be accurate and logical. Gas chromatography coupled with __________ __________ detector is suitable for chlorinated pesticide analysis. ii. Peaks that emerge first will represent compounds that are the most __________.Those compounds will also likely have low boiling points and show the least interactions with the stationary phase. iii. Major peaks start to emerge after 24 minutes. Heating the GC oven containing the column will likely __________ the time of chromatographic separation. iv. The peak height or area of an analyte is used to determine its __________ in quantitative analysis.
Below is a chromatogram observed from chemical separation of chlorinated pesticides using gas chromatography. Water samples were pre-treated using solvent extraction technique prior to injection into GC. Complete the statements below so that the sentences will be accurate and logical. Gas chromatography coupled with __________ __________ detector is suitable for chlorinated pesticide analysis. ii. Peaks that emerge first will represent compounds that are the most __________.Those compounds will also likely have low boiling points and show the least interactions with the stationary phase. iii. Major peaks start to emerge after 24 minutes. Heating the GC oven containing the column will likely __________ the time of chromatographic separation. iv. The peak height or area of an analyte is used to determine its __________ in quantitative analysis.
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter23: Carbon: Not Just Another Element
Section23.5: Polymers
Problem 3.1ACP: What is the atom economy for the reaction of acetone with phenol to make BPA? (Applying Chemical...
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Below is a chromatogram observed from chemical separation of chlorinated pesticides using gas chromatography. Water samples were pre-treated using solvent extraction technique prior to injection into GC. Complete the statements below so that the sentences will be accurate and logical.
Gas chromatography coupled with __________ __________ detector is suitable
for chlorinated pesticide analysis.
ii. Peaks that emerge first will represent compounds that are the most __________.Those compounds will also likely have low boiling points and show the least
interactions with the stationary phase.
iii. Major peaks start to emerge after 24 minutes. Heating the GC oven containing the column will likely __________ the time of chromatographic separation.
iv. The peak height or area of an analyte is used to determine its __________ in quantitative analysis.
Transcribed Image Text:Chlorinated pesticides in water
1. Propachlor
2. Trifluralin
13. a-Chlordane
14. Dieldrin
3. a-HCH
15. p.p-DDE
4. Hexachlorobenzene 16. Endrin
5. B-HCH
6. y-HCH
7. SHCH
8. Heptachlor
9. Aldrin
10. DCPA
11. Heptachlor Epoxide 23. trans-Permethrin
12. z-Chlordane
17. p.p'DDD
18. Endrin Aldehyde
19. Endosulfan Sulfate
12 14
-15
11 13 16
20. p.p'DDT
21. Methoxychlor
22. cis-Permethrin
21
2
10
20
17
23
|18
19
22
12
16
20
24
28
32
36 40
44
48
52 Min.
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