21074th poster gets a cookie (cookie thread (Part 7)) (Part 8)

General
#1

Continuing the discussion from Cookie Thread Act 7: Romulus - #30012 by benguinedparbecue.

Previous discussions:

Cookies:

2 Likes
#2

i got distracted speaking street i forgot the cookie was even in play

2 Likes
#3

is chromatography the light thing

2 Likes
#4

third

1 Like
#5

BY PORTISHEAD?

#6

I don’t want to be the one naming all the cookie threads I feel like somebody else deserves a go

#7

i wonder when this cycle will end

1 Like
#8

too much portis not enough head

#9

it involves a mobile phase and a stationary phase. you can use it to distinguish types of pens from each other i think

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#10

NEW ORGANIC CHEMISTRY HOMEWORK JUST DROPPED

#11

everybody loves fraz0r

#12

though that’s not gas chromatography. there are too many types of chromatography. one of them is called hplc i think

#13

its not been here in like 4 months

#14

3rd poster gets a cookie (youbutworse is the best thread) (part 1) (og fortnite is back)

#15

Gas chromatography you do with gases

#16

benguined is now responsible for having created the last Cookie Thread.

1 Like
#17

let the system have this thread

#18

portis with no head! those who know

#19

Separation of Mixtures by Gas-Liquid Chromatography
Summary
Perhaps the most commonly used procedures for separating a mixture into its pure components
involve chromatography. Chromatographic procedures are used to separate multi-component mixtures
by partitioning their components between two phases. The first mobile phase constantly moves through
the second stationary phase. In this experiment, you will be using gas chromatography (GC) or, more
accurately, gas-liquid partition chromatography to resolve mixtures of the hydrocarbons pentane, hexane,
and heptane, CH3(CH2)nCH3 (n = 3, 4, and 5, respectively). In GC the compounds to be separated
partition (i.e., equilibrate) between a moving gas phase and a stationary liquid phase that coats an inert
support. As a result of this partitioning between the vapor phase and the solution phase, the individual
components in the gas phase successively elute from the GC column in order of decreasing solubility in
the liquid phase. The molecules that more strongly interact with (i.e., dissolve in) the liquid phase at the
operating temperature of the GC separation require longer times to elute from the column.

#20

Can we tax him for that?

1 Like