Chromatography Forum

Hey everyone, i am new here and i wanted to ask a few thing if you can help me out..!

I have a project where i have to determine in the lab Vitamin A(fat soluble vitamin) and C ( water soluble) in multivitamin tablets and Vitamin C and B1 (thiamine) in cereals... needs to be with a C18 column and UV detector...
and i was wonderng if you have in mind any info or journals i can look too, cause i've haven't found much that include both sample prep (extraction mostly) and the following the HPLC parameter required!


thanks a lot!

Hey everyone, i am new here and i wanted to ask a few thing if you can help me out..!

I have a project where i have to determine in the lab Vitamin A(fat soluble vitamin) and C ( water soluble) in multivitamin tablets and Vitamin C and B1 (thiamine) in cereals... needs to be with a C18 column and UV detector...
and i was wonderng if you have in mind any info or journals i can look too, cause i've haven't found much that include both sample prep (extraction mostly) and the following the HPLC parameter required!


thanks a lot!

Hi
This question solved long ago. See sea literature.
PS
Ascorbic acid slightly oxidizaid . Don't Fe 2+, Fe3+ , Cu2+ iones ( red-ox catalist) . For its deactivated use EDTA-Na.

because i am new to a lot of these, can you be more specific on what you mean by sea literature pls?!

thanks! )

because i am new to a lot of these, can you be more specific on what you mean by sea literature pls?!

thanks! )

Well
http://en.wikipedia.org/wiki/Ascorbic_acid
http://en.wikipedia.org/wiki/Retinol
http://en.wikipedia.org/wiki/Thiamine
http://en.wikipedia.org/wiki/Cholecalciferol
http://en.wikipedia.org/wiki/Lactose
http://en.wikipedia.org/wiki/Starch
http://en.wikipedia.org/wiki/Polyvinylpyrrolidone

Here, approximately 15,000 direct links, you'll fit about 800.
http://www.google.ru/webhp?hl=ru&tab=ww ... Bby%2BHPLC
http://www.google.ru/search?hl=ru&newwi ... 09ef7&bs=1
http://www.google.ru/search?hl=ru&newwi ... 1b04809ef7
http://www.google.ru/search?hl=ru&newwi ... 1b04809ef7

And this is for you. True Russian. But the exclusive


http://www.anchem.ru/forum/read.asp?id=9264

http://www.econova.ru/applications/publ ... sis_23.pdf
I hope Professor Baram (creator first UPLS ( Novosibirsk "Orlenok"-"MiLiChrome-1" (1968)) for me not to be offended


As we say in the village - "and-forth with a song" . Since the "rescue of drowning, the handiwork of drowning. "(с)
When you come to a definite and reasonable opinion, then we are happy to discuss your ideas.