www.bodeanimati... Gas chromatography is used in analytical chemistry for separating and analyzing compounds that can be vaporized without decomposition
For anyone who is confused about the internal standard, it is just used as a positive control, you mix it in with your sample (provided it doesn't react with your sample ofc), run the sample and if the peak for the internal standard shows up you know that the GC worked as intended, if the peak doesn't show up you know that there is an error somewhere and you have to do it again. Also the internal standard is of known concentration so it is also used for calibration.
I swear I'm not kidding. I didn't believe it for the first time so I did it for second time. This video's music put me to sleep both times whenever I played.
@@arwaalawlqy6754 exactly dont know but ac to google blood contain volatile compound ...www.ncbi.nlm.nih.gov/pmc/articles/PMC4909136/ (this may help you)
it has whatever you're testing for in there, but chemically labeled so you can differentiate it from your control positive or from actual positives. internal standard is used to ensure that the preparation of the sample was done correctly. for example if your sample results appear negative but you were unable to see your internal standard, you have to redo your sample preparation as to not risk calling a false negative.
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For anyone who is confused about the internal standard, it is just used as a positive control, you mix it in with your sample (provided it doesn't react with your sample ofc), run the sample and if the peak for the internal standard shows up you know that the GC worked as intended, if the peak doesn't show up you know that there is an error somewhere and you have to do it again.
Also the internal standard is of known concentration so it is also used for calibration.
I swear I'm not kidding. I didn't believe it for the first time so I did it for second time. This video's music put me to sleep both times whenever I played.
Seriously?
How?
maybe you stayed up too late doing your gas chromotography assignment because same
me too wtf
xD
I can't believe this..... Wow... Great explanation....
Second that! I learned alot :)
Long story short: John Doe is an alcoholic
my french school teacher show us this to explain how it works #BTSbioqualité
will you please explain this in words.....
Thank you very much!
Really great video!
Awesome visual explanation....................
Will be great if you actually explained how it works
GC is so much difficult for understand
Nearly a whole third of the video is that "column" bit...perhaps slightly speeding that part up would be good.
Thanks! Finally a helpful vid
can you share me the expression you used in text
Great explainer
Thank you but can show me how gc mass or HPLC work plz🙏🏻
If ethanol is present in blood sample
excellent
gc used in blood testing ??????? is blood volatile ?
same question
@@arwaalawlqy6754 exactly dont know but ac to google blood contain volatile compound ...www.ncbi.nlm.nih.gov/pmc/articles/PMC4909136/ (this may help you)
Nice Explanation
Ok
nice but more explanation
good explanation
Great video,
Nice
So blood is ethanol?
thanks! :)
drunkard's blood
Sample to be determined in blood is ethanol
Great
What solution is used for internal standard?
it has whatever you're testing for in there, but chemically labeled so you can differentiate it from your control positive or from actual positives. internal standard is used to ensure that the preparation of the sample was done correctly. for example if your sample results appear negative but you were unable to see your internal standard, you have to redo your sample preparation as to not risk calling a false negative.
WOWWWWWWW ONLY
Didn't understand shit
LOLL