192/2017 Solid phase extraction (SPE) is one of the sample preparation methods most widely used by chromatographers, as can be seen from the large number of SPE methods found in […]
LEARN MOREIn this Appbrief samples from fish tissue were extracted by Stir Bar Sorptive Extraction (SBSE) using a GERSTEL Twister®, followed by analysis using a GERSTEL MPS thermal desorption system for […]
LEARN MORE220/2021 Laboratory samples are typically extracted prior to analysis by sensitive GC-MS or LC-MS/MS methods to separate the analytes of interest from the bulk of matrix components that could interfere […]
LEARN MORE218/2021 In this study, Thin Film Solid Phase Microextraction (TF-SPME) with a divinylbenzene/polydimethylsiloxane coating (DVB/PDMS) was used to extract off-odor compounds from paper product samples. The use of gas chromatography-mass […]
LEARN MORE2021/219 In this study, Thin Film Solid Phase Micro-Extraction (TF-SPME) devices with carboxen/polydimethylsiloxane (CAR/PDMS), divinylbenzene/ polydimethylsiloxane (DVB/PDMS), and hydrophilic lipophilic balanced/polydimethylsiloxane (HLB/PDMS) coatings are investigated for their usefulness for beverage […]
LEARN MOREAppNote 215/2020 Synthetic cathinones (also known as Bath Salts) are a group of drug compounds designated as Novel Psychoactive Substances (NPS). They are unregulated, mind-altering substances with no actual approved […]
LEARN MOREApp Note 210/2020 The manual preparation of calibration standards and QC samples is part of the daily activities of laboratories that analyze food samples for contaminants. The accurate and precise […]
LEARN MOREApp Note 214/2020 In this document we describe a method developed to quantify persistent organic pollutants (POPs) including polycyclic aromatic hydrocarbons (PAHs) and organochlorine pesticides (OCPs) in dietary supplements using […]
LEARN MOREApp Note 196/2018 In the work presented here, highly sensitive determination of around 100 contaminants in surface water in the concentration range from low double digit to low triple-digit pg/L […]
LEARN MORE