Essays about: "Gas chromatography"

Showing result 16 - 20 of 105 essays containing the words Gas chromatography.

  1. 16. Effects of plant-fungal interactions on volatile emission of Hordeum vulgare and aphid preference

    University essay from SLU/Dept. of Ecology

    Author : Bina Johansson; [2022]
    Keywords : volatile organic compounds; chemical communication; Trichoderma atroviride; Fusarium graminearum; Rhopalosiphum padi; biological control;

    Abstract : Barley is one of the most economically important cultivated crops in the world. However, barley is a host for many insect pests and plant pathogenic fungi which is a threat to the production. Rhopalosiphum padi is an economically important insect pest that leads to large economical losses in agricultural crops such as barley. READ MORE

  3. 17. Building an in-house spectral library using GCorbitrap HRMS

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Elias Kolsmyr; [2022]
    Keywords : Environmental contaminants; Plastic additives; Gas chromatography; High resolution mass spectrometry; Spectral library; MS-DIAL;

    Abstract : There are a great variety of environmentals contaminants, a lot of which are understudied asit is today. The aim of this study was to develop an in-house high-resolution spectral librarycontaining environmental contaminants, with focus on plastic additives. The spectral librarywould then be used to perform suspect screening on real sample extracts. READ MORE

  4. 18. Analysis of Benzoisothiazolinone in process water from operations that handle large amounts of paint residues

    University essay from KTH/Kemi

    Author : Cagenna Magendran; [2022]
    Keywords : Flocculation; Gas chromatography-mass spectrometry; Isothiazolinones; Paint residues; Stockholm s water and waste; Flockulering; Gaskromatografi-masspektrometri; Isotiazolinoner; Färg rester; Stockholm vatten och avfall.;

    Abstract : I denna studie undersöks isotiazolinoner i avloppsvatten eftersom det finns i alla kommersiella färger. För att avgöra om reningsverken är tillräcklig bra används gaskromatografi-masspektrometri (GC-MS) för att analysera förekomsten av BIT i processvatten som släpps ut i mjövattnet. READ MORE

  5. 19. Development and validation of sample clean-up using solid phase extraction prior oil spill fingerprinting

    University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi

    Author : Cheryl Loorents; [2022]
    Keywords : Oil spill; chemical fingerprint; solid phase extraction SPE ; development; validation.;

    Abstract : In a forensic investigation involving oil, a comparative analysis named oil spill fingerprinting between a source and an oil spill is normally performed. It is based on detecting a certain selection of biomarkers with gas chromatography (GC) coupled to mass spectrometry (MS) which are later divided into diagnostic ratios (DRs). READ MORE

  6. 20. Non-target screening of sediment samples fromthe Canadian Arctic: comparing two different gas chromatography – high resolution mass spectrometry (GC-HRMS) techniques

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Mathilda Timner; [2022]
    Keywords : Arctic marine sediment ׀ GC×GC-HR-ToF-MS ׀ GC-Orbitrap-MS ׀ Identification ׀ Non-target screening ׀ Organic pollutants;

    Abstract : Since the late 18th century, chemicals have been industrially produced, and used by consumers. Today, the number of registered chemicals are over 150 000 in North America and Europe alone, and the number is predicted to increase. READ MORE