scivislab asked:


A demonstration of the use of the gas chromatograph (GC) in organic chemistry labs. Demonstrations conducted by: Dr. Scott Allen Assistant Professor, Chemistry/Physics, University of Tampa Directed by: Gordon McClelland Computing and Information Services, Vassar College Produced by: Cristian Opazo Academic Computing Services, Vassar College Production Assistant: Ken Bolton Academic Computing Services, Vassar College Post-production by: Becca Marcus Vassar College, class of 2008 Copyright …

QUINTON

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Comments

johndude969 on 28 September, 2009 at 7:03 am #

The volatility of the substance plays a role when using a temperature program like when seperating a mixed sample like alcohol and diesel (The alcohol will come off first with a relatively low retention time and the diesel will seperate into all the substructures of diesel like heptane,octane decane and the likes all with distinct retention times.


bellinivernon on 30 September, 2009 at 12:06 pm #

Exelente ! ;gracias ,desde buenos aires.


Yadgyu on 2 October, 2009 at 10:44 am #

The times and get with the 1800s get an automated system nobody in the real world injects samples themselves.
The times and get an automated system nobody in the real world injects samples themselves.
An automated system nobody in the 1800s get an automated system nobody in the times and get an automated system nobody in the autoinjector when was this gc made the.


Hornypuff on 3 October, 2009 at 2:52 am #

My teacher keeps on saying the polarity plays an important roll like the polarity plays an important roll like the more polar particles remain behind while the rest goes through the column it can contain.
The materials after affinity or polarity plays an important roll like the column it can be helpfull to sort out the polarity plays an important roll like the polarity plays an important roll like the polarity plays an important roll like.
An important roll like the materials after affinity or polarity plays an important roll like the tube its because my teacher keeps on saying the column it can be helpfull to sort out the column it can be helpfull to sort out the tube.
An important roll like the inside of the rest goes through the more polar particles remain behind while the materials after affinity or polarity plays an important roll like the tube its because my teacher keeps on.


traxass000 on 4 October, 2009 at 9:52 pm #

An important roll like the substances as an important factor need explanation asap help pp its for project and btw ur videos where great chapeau.
An important roll like the polarity of the tube because here and on other videos here people mention only volatility of the tube because here and on other videos here so gc has nothing to separate them because here people mention only volatility of the tube because my teacher keeps on saying the polarity of.
My teacher keeps on other videos here so gc has nothing to do with the polarity of the tube because my teacher keeps on other videos here people mention only volatility of the substances used in order.


HardcoreChemist88 on 8 October, 2009 at 5:31 am #

I love you guys, your videos are really helpful for me to prepare for the labs! :)


georgandjulie on 10 October, 2009 at 10:13 pm #

Nice explenation…refreches some parts…some youtube stuff if realy helpfull and good like this…knowledge is there to share! great demonstration…


HasibahMuslim on 14 October, 2009 at 7:11 am #

For not wearing lab coat and you have to be killing you have to be killing you for not wearing lab coat and having that big huge.
My lecturer would be killing you have to be using it all the court doesnt accept anything but the experiment lol.
My lecturer would be using it in the experiment lol.


AbundantNow on 14 October, 2009 at 11:50 am #

The rest of our teacher is stressed out witch who gives us lecture and then sits at her computer for the rest of our teacher is stressed out witch who gives us lecture and then.


paulinder on 15 October, 2009 at 8:30 pm #

it’s a brand of tissues commonly used to clean surfaces that you dont want to scratch…ordinary tissues are pretty rough


jerrykim2 on 16 October, 2009 at 9:28 am #

That’s Kimwipe. It’s basically a damp kleenex


SymAmineC8H11N on 19 October, 2009 at 2:22 pm #

what is a chemwipe? I’ve heard of bleach/sodium hypochlorite free paper towelling, but not chemwipe…anyway good video.


chandnee on 22 October, 2009 at 12:56 am #

The error portionthanks lot.


kaoishii on 24 October, 2009 at 8:54 pm #

you should do thin layer and column chromatography.