Sökning: id:"swepub:oai:DiVA.org:su-50052" >
Characterization of...
Characterization of exopolysaccharides in marine colloids by capillary electrophoresis with indirect UV detection
-
- Gao, Qiuju (författare)
- Stockholms universitet,Meteorologiska institutionen (MISU)
-
- Araia, Musie (författare)
- KTH,Analytisk kemi
-
- Leck, Caroline (författare)
- Stockholms universitet,Meteorologiska institutionen (MISU)
-
visa fler...
-
- Emmer, Åsa (författare)
- KTH,Analytisk kemi
-
visa färre...
-
(creator_code:org_t)
- Elsevier BV, 2010
- 2010
- Engelska.
-
Ingår i: Analytica Chimica Acta. - : Elsevier BV. - 0003-2670 .- 1873-4324. ; 662:2, s. 193-199
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
visa färre...
Abstract
Ämnesord
Stäng
- A method was established using capillary electrophoresis with indirect UV detection for analysis of monosaccharides liberated from exopolysaccharides by acidic hydrolysis. Tangential flow filtration was used to isolate high molecular weight polysaccharides from seawater. The capillary electrophoresis method included the use of a background electrolyte consisting of 2,6-dimethoxyphenol and cetyltrimethylammonium bromide. Several neutral sugars commonly existing in marine polysaccharides were separated under optimized conditions. The relative standard deviations were between 1.3% and 2.3% for relative migration time and 1.3-2.5% for peak height. Detection limits (at S/N 3) were in the range of 27.2-47.8 mu M. The proposed approach was applied to the analysis of hydrolyzed colloidal polysaccharides in seawater collected from the Baltic Sea. Nanomolar levels of liberated monosaccharides in seawater samples can be detected by preconcentration up to 30,000 times.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
Nyckelord
- Exopolysaccharide
- Capillary electrophoresis
- Extracellular polymeric substances
- Marine colloid
- Meteorology
- Meteorologi
- meteorologi
- Meteorology
- Analytical chemistry
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas