Sökning: "Mohamed Abdel-Rehim"

Hittade 4 avhandlingar innehållade orden Mohamed Abdel-Rehim.

  1. 1. Influence of ammonia as carrier gas on separation and detection performance in capillary gas chromatography

    Författare :Mohamed Abdel-Rehim; Uppsala universitet; []

    Sammanfattning : .... LÄS MER

  2. 2. Development of LC-MS/MS Methods for the Analysis of Chiral and Achiral Pharmaceuticals and Metabolites in Aqueous Environmental Matrices

    Författare :Victoria K.H. Barclay; Curt Pettersson; Monika Johansson; Niklas Tyrefors; Mohamed Abdel-Rehim; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; NATURVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; NATURAL SCIENCES; MEDICAL AND HEALTH SCIENCES; Environmental water matrices; chiral separation; LC-MS MS; trace analysis; method development; active pharmaceutical ingredients; metabolites; Analytical Pharmaceutical Chemistry; Analytisk farmaceutisk kemi;

    Sammanfattning : This thesis describes the development of liquid chromatography tandem mass spectrometry (LC-MS/MS) methods for the trace analysis of active pharmaceutical ingredients (APIs) and their metabolites in aqueous environmental matrices. The research was focused on the development of chiral LC-MS/MS methods for the analysis of fluoxetine and metoprolol, as well as their chiral metabolites in environmental water samples. LÄS MER

  3. 3. Microextraction by packed sorbent of drugs and peptides in biological fluids

    Författare :Seyed Mosayeb Daryanavard; Mohamed Abdel-Rehim; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; MEPS; Local anaesthetics drugs; Peptides; Analytical Chemistry; analytisk kemi; analytisk farmaceutisk kemi; Analytical Pharmaceutical Chemistry;

    Sammanfattning : Sample preparation as the first step in an analytical procedure has an important role, particularly in bioanalysis, because of the complexity of biological samples (blood plasma and urine). Biological matrix such as plasma and blood contains proteins, organic and inorganic salts, acids, bases and various organic compounds with similar chemistry to the analytes of interest. LÄS MER

  4. 4. Towards more selective sorbents for extraction of drugs and biomarkers from biological fluids using molecularly imprinted polymers

    Författare :Mohammad Mahdi Moein; Mohamed Abdel-Rehim; Milton L. Lee; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; molecularly imprinted polymer; sol-gel; solid phase extraction; microextraction by packed sorbent; monolithic column; Analytical Chemistry; analytisk kemi;

    Sammanfattning : Sample preparation has a critical role as a first step in analytical processes, especially in bioanalysis and environmental analysis. A good sample preparation technique should be robust and stable, regardless of the sample matrix. LÄS MER