Skip to main content

General instrument information

Short name
IC, Dionex
Category
srednja (200.000 – 1.000.000 kn)
Instrument type
kromatograf
Analysis type
kromatografska separacija
Standalone or bound
samostalan
Equipment condition
potpuno funkcionalan
Disciplines
Geofizika , Kemija , Javno zdravstvo i zdravstvena zaštita , Dentalna medicina
Year of manufacture
2004
Financing body
Ministarstvo znanosti i obrazovanja Republike Hrvatske
External link

Characteristics

Model
IC1000 i IC1100
Manufacturer
Dionex
Operating and measuring scope
cations: Li, Na, K, Mg, Ca, NH4, ; anions: F, Cl, Br, SO4, PO4, NO3
Principle of work
Ion chromatography is a very useful technique for qualitative and quantitative determination of ionic species in solution: cations, anions and polar molecules. This technique is based on the principle of chromatographic separation and difference in affinity of the ingredients in the sample to ion-exchange and sorption on column. Ion exchange takes place in the column packed with the stationary phase, which is actually an ion-exchange resin with active functional groups, positively or negatively charged. The corresponding counterions to a particular functional group is replaced by other ions of the same charge, or from the mobile phase, or eluent. The eluent is an inert medium which does not react chemically with the sample, and the sample is transferred from the ingredients of the column to the conductometric detector. Each ion exchange ion defines the equilibrium. The result is ion chromatography curve showing the dependence of the signal on time. Each ingredient has its own characteristic residence time in the column, so-called retention time. It is constant at constant conditions of ion chromatographic analysis. The small ions are eluted before the large ions, and also a monovalent before di- and tri-valent ions.
Additional equipment
columns, quard column, suppressors
Portability
No
Remote work
No

Location

Address
Bijenička c. 54
Room
VI. krilo/visoko prizemlje/soba 107

This site uses cookies.. Some of these cookies are essential, while others help us improve your experience by providing insights into how the site is being used. For more detailed information on the cookies we use, please check our Privacy Policy.

Customise settings
  • Necessary cookies enable core functionality. The website cannot function properly without these cookies, and can only be disabled by changing your browser preferences.