Sökning: "degradation-products"

Visar resultat 1 - 5 av 109 avhandlingar innehållade ordet degradation-products.

  1. 1. Glucose degradation products in patients on hemodialysis : interventional studies

    Författare :Bernd Ramsauer; Bernd Stegmayr; Henrik Hadimeri; Bengt Lindholm; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Hemodialysis; advanced glycation end products; skin autofluorescence; plasma autofluorescence; glucose degradation products;

    Sammanfattning : Hemodialysis (HD) is the most frequently used treatment for end-stage renal disease. Despite all efforts to improve the outcomes, the mortality of patients on HD is still high, and this especially is related to cardiovascular diseases (CVD). LÄS MER

  3. 2. Structural studies of polychlorinated hydrocarbons : DDT analogues and degradation products

    Författare :Sven Hovmöller; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The crystal structures of five analogues and degradation products of DOT have been determined by single crystal X-ray diffraction techniques. The conformations of these compounds are discussed and compared with the other DDT-type compounds whose crystal structures have been solved. LÄS MER

  4. 3. Poly (butylene succinate) and poly (butylene adipate) : quantitative determination of degradation products and application as PVC plasticizers

    Författare :Annika Lindström; Minna Hakkarainen; Ann-Christine Albertsson; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; solid phase extraction; degradation products; poly butylene succinate ; poly butylene adipate ; GC-MS; PVC; plasticizer; Biokemi; Biochemistry; Biokemi;

    Sammanfattning : A solid phase extraction (SPE) method was developed for simultaneous extraction of dicarboxylic acids and diols formed during hydrolysis of poly(butylene succinate), PBS, and poly(butylene adipate), PBA. The developed SPE method and subsequent GC-MS analysis were used to extract, identify and quantify low molecular weight products migrating from linear and branched poly(butylene adipate) (PBA) and poly(butylene succinate) (PBS) during aging in aqueous media. LÄS MER

  5. 4. Environmentally Degradable Polyethylene : Effects of Additives and Environment on the Degradation and Degradation products

    Författare :Farideh Khabbaz; KTH; []
    Nyckelord :LDPE; polyethylene; oxidative degradation; photo-oxidation; thermo-oxidation; degradation products; photosensitisers; pro-oxidant; starch; master-batch; gas chromatography mass-spectrometry; GC-MS; solid phase microextraction; SPME;

    Sammanfattning : This thesis summarises and compares the influences ofdifferent additives (photosensitisers, pro-oxidants, abiodegradable filler) on blown low-density polyethylene (LDPE)films during photo- and thermal degradation with respect tochemical changes in the polymer matrices and identifieddegradation products. Additives studied were irondimethyldithiocarbamate (FeDMC), nickel dibutyldithocarbamate(NiDBC), carbon black, starch, a pro-oxidant that consisted ofmanganese stearate together with styrene butadiene rubber (SBR)or natural rubber (NR) and a master batch containing linearLDPE, starch and pro-oxidant. LÄS MER

  7. 5. Glucose degradation products in peritoneal dialysis fluids

    Författare :Martin Erixon; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Medicine human and vertebrates ; 4-dideoxyglucosone-3-ene; 3; cytotoxicity; storage; temperature; Glucose degradation products biocompatibility; sterlization; Medicin människa och djur ; Analytical chemistry; Analytisk kemi;

    Sammanfattning : Patients suffering from renal failure must remove extracellular water and waste products from their body in order to survive. One way of doing this is by treatment with peritoneal dialysis (PD). LÄS MER