ALL libraries (COBIB.SI union bibliographic/catalogue database)
-
Stufenweise Elutionsanalyse von CarboxymethylstärkeČeh, Mirko, 1923-2013 ; Stropnik, ČrtomirPaperchromatographic elution separation with perchloric acid solutions of different molarities were carried out with synthesized carboxymethylated starches (CMS) of the following degrees of ... substitution (DS): 0,30, 0,58, 1.09 and 2,17. On the basis of occuring coloured sections in comparision with those of native starch is subjected during the CMS-synthesis to a partial degradation. A comparision of the chromatograms of the starch ethers indicatesfor higher DS a change into violet colours, a fading of these colour intensities and an arising of new coloured sections which were separated by lower concentrations of perchloric acid. Already at a degree of substitution of 2,17 any coloured sections are lacking. Induced carboxymethyl-groups in the course of the synthesis prevent the formation of the iodine complex of amylose and the amylopectin-iodine reaction. At defined of the CMS-synthesis the paperchromatographic elution separation makes it possible to evaluate the approximate degree of substitution of starch on the basis of the occuring coloured sections and colour shades.Source: Die Stärke = Starch. - ISSN 0038-9056 (Jhrg. 27, Hf. 3, 1975, str. 72-76)Type of material - article, component partPublish date - 1975Language - germanCOBISS.SI-ID - 5079830
Author
Čeh, Mirko, 1923-2013 |
Stropnik, Črtomir
Topics
organska kemija |
škrob |
karboksilmetilni škrob |
papirna kromatografija |
stopenjska elucija |
ločevanje škroba v konstituenti |
organic chemistry |
starch |
carboxymethyl starch |
paper chromatography |
stepwise elution |
separation of starch
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
If the library membership card is not in the list,
add a new one.
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|---|
Čeh, Mirko, 1923-2013 | 00012 |
Stropnik, Črtomir | 03033 |
Source: Personal bibliographies
and: SICRIS
Select pickup location:
Material pickup by post
Delivery address:
Address is missing from the member's data.
The address retrieval service is currently unavailable, please try again.
By clicking the "OK" button, you will confirm the pickup location selected above and complete the reservation process.
By clicking the "OK" button, you will confirm the above pickup location and delivery address, and complete the reservation process.
By clicking the "OK" button, you will confirm the address selected above and complete the reservation process.
Notification
Automatic login and reservation service currently not available. You can reserve the material on the Biblos portal or try again here later.
Subject headings in COBISS General List of Subject Headings
Select pickup location
The material from the parent unit is free. If the material is delivered to the pickup location from another unit, the library may charge you for this service.
Pickup location | Material status | Reservation |
---|
Reservation in progress
Please wait a moment.
Reservation was successful.
Reservation failed.
Reservation...
Membership card:
Pickup location: