December 27, 2024, 03:28:30 PM
Forum Rules: Read This Before Posting


Topic: selenium analysis  (Read 8858 times)

0 Members and 1 Guest are viewing this topic.

Offline googleviet

  • Regular Member
  • ***
  • Posts: 13
  • Mole Snacks: +0/-0
selenium analysis
« on: November 13, 2007, 11:09:16 PM »
I want to analyze selenium in medicine (determine the amount of selenium in medicine). Do you know what medicine contains selenium? And which methods are being used? Thanks for your *delete me*!!

Offline googleviet

  • Regular Member
  • ***
  • Posts: 13
  • Mole Snacks: +0/-0
Re: selenium analysis
« Reply #1 on: November 18, 2007, 08:26:52 PM »
What you don't understand, ask me please! Thanks for helping me  ;)

Offline enahs

  • 16-92-15-68 32-7-53-92-16
  • Retired Staff
  • Sr. Member
  • *
  • Posts: 2179
  • Mole Snacks: +206/-44
  • Gender: Male
Re: selenium analysis
« Reply #2 on: November 18, 2007, 09:40:32 PM »
The easiest and most direct way would be atomic spectroscopy.

I mean, it is pretty simple and straight forward and will tell you how much Selenium is in your sample.

Offline googleviet

  • Regular Member
  • ***
  • Posts: 13
  • Mole Snacks: +0/-0
Re: selenium analysis
« Reply #3 on: November 19, 2007, 08:15:46 AM »
And what do the common problems usually appear when you analyze  selenium in a sample? Is there any interference?Or something else... :)

Offline AWK

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7976
  • Mole Snacks: +555/-93
  • Gender: Male
Re: selenium analysis
« Reply #4 on: November 19, 2007, 09:03:15 AM »
Selenium is do not use in medicine. it is to toxic. Only minute amounts are used as diet suplement, ie micrograms.
Sliglty more selenium contains anti-dandruff shampoo  Selsun (in my country it can be bought only in apothecary).
http://en.wikipedia.org/wiki/Selenium_sulfide
note wikipedia gives wrong molecular formula and name. Sulfur form cyclic S8 molecules in which some sulfur atoms can be replaced by selenium. SeS may mean that aproximately half od S atoms were replaced, and then formula of "selenium sulfide" should be S4Se4 (note - S precedes  Se in alphabet).
AWK

Offline enahs

  • 16-92-15-68 32-7-53-92-16
  • Retired Staff
  • Sr. Member
  • *
  • Posts: 2179
  • Mole Snacks: +206/-44
  • Gender: Male
Re: selenium analysis
« Reply #5 on: November 19, 2007, 10:41:08 AM »
Quote
Sliglty more selenium contains anti-dandruff shampoo  Selsun (in my country it can be bought only in apothecary).

That is interesting (The Dandruff Shampoo only allowed to be bought at a special retailer). You can get it anywhere around here.

Quote
note wikipedia gives wrong molecular formula and name.

Then fix it!


Your whole thing about the Selenium Sulfide in shampoo reminded me of a movie; Evolution.
http://www.imdb.com/title/tt0251075/
They had to use Dandruff shampoo for the Selenium Sulfide to kill the alien creature!
I enjoyed that movie, it was fairly funny!


Sponsored Links