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Re: Forensics C
Posted: January 6th, 2017, 7:26 pm
by sciduck
yellow_squirtle wrote:
I believe acetone is polar, but it shares both polar and nonpolar properties. Please correct me if I am wrong. Regardless, your turn :--)
I just guessed because it worked w/ permanent markers but acetone actually has oxygen in it so, yeah I guess it would be polar
What type of fingerprint has 3 deltas?
Re: Forensics C
Posted: January 6th, 2017, 8:20 pm
by Lumitailz
What type of fingerprint has 3 deltas?
Accidental whorls have more than 2 deltas
Re: Forensics C
Posted: January 13th, 2017, 11:32 am
by sciduck
Lumitailz wrote:
What type of fingerprint has 3 deltas?
Accidental whorls have more than 2 deltas
Yup yup. Your turn.
Re: Forensics C
Posted: January 14th, 2017, 4:11 pm
by Lumitailz
Stationary phase for TLC and gas chromatography?
Re: Forensics C
Posted: January 15th, 2017, 8:04 am
by sciduck
Lumitailz wrote:Stationary phase for TLC and gas chromatography?
TLC: Adsorbent (on flat glass / plastic plate)
Gas chromatography: thin layer of an liquid on an inert solid support
Re: Forensics C
Posted: January 15th, 2017, 9:44 am
by Lumitailz
sciduck wrote:
TLC: Adsorbent (on flat glass / plastic plate)
Gas chromatography: thin layer of an liquid on an inert solid support
Yup, your turn.
Re: Forensics C
Posted: January 16th, 2017, 7:35 am
by sciduck
What does ninhydrin react with to form fingerprints?
Re: Forensics C
Posted: January 16th, 2017, 8:43 am
by Lumitailz
sciduck wrote:What does ninhydrin react with to form fingerprints?
amino acids
Re: Forensics C
Posted: January 16th, 2017, 2:33 pm
by sciduck
Lumitailz wrote:sciduck wrote:What does ninhydrin react with to form fingerprints?
amino acids
Your turn
Re: Forensics C
Posted: January 17th, 2017, 5:43 pm
by Lumitailz
When do fingerprints first form? and
Where do they originate?