Go to Google Groups Home
Groups 
Advanced Groups Search    Preferences    Groups Help 
 
Viewing message <15543d40.0205291706.32d49133@posting.google.com> 
 Pigments for plastics • Pigments database, free TechService Leading expert solving color issues • www.specialchem4polymers.comSponsored Links 
 DyesOnline • The worldwide marketplace of dyes over 3950 users from 114 countries • www.dyesonline.com
 Mass Spectrometry Service • Starting at $25/sample Fast, Reliable, Quality Service • www.globalpeptide.com
From: Tobias Kind (tk2002deja@amdis.net)
Subject: Re: Determination of presence of Azorubin (Carmoisine)
View: Complete Thread (3 articles)
Original Format
Newsgroups: sci.chem.analytical
Date: 2002-05-29 18:06:59 PST
gorstein@gmx.net (Ewgenij Gorstein) wrote in message news:<95527ac0.0205290906.1b70ee2b@posting.google.com>... 
> Please, advise how to determine that the solution is colored by
> Azorubin (Carmoisine)?

Buna Ziua Ewgenij,

HPLC or TLC.

La revedere
Tobias Kind
www.amdis.net


PS:
Determination of E122 aka Carmoisine or Azorubine C.I.14720 
CAS: 3567-69-9

Sensitive Analysis of Synthetic Colors
using HPLC and Diode- Array Detection
at 190-950 nm by 
Angelika Gratzfeld-Hüsgen and Rainer Schuster
Publication Number 5964-3559E from Agilent
http://www.bst.com.au/resources/synthetic%2520colours%2520hplc.pdf

or
SURVEY OF COLOURS IN SWEETS
No. 23/02 April 2002
http://www.foodstandards.gov.uk/multimedia/pdfs/23sweets.pdf

or 
TLC (Thin-Layer Chromatography) cheap but not very sensitive...
http://www.chromsource.com/books/Milestones-TLC.pdf


Google Home - Advertise with Us - Business Solutions - Services & Tools - Jobs, Press, & Help

©2003 Google