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Fast Extraction of 10 Tricyclic Antidepressant Drugs from Urine using ISOLUTE® SLE+ Columns Prior to LC-MS-MS Analysis

5 Nov 2012

Tricyclic Antidepressants (TCAs) are prescribed for the clinical treatment of mood disorders like depression and bipolar disorders and can also be used in long-term pain management therapy. They work to prevent the re-uptake of serotonin and norepinephrine in the brain. The monitoring of TCA levels in patients is important to the continued prescribing of the drug and overall determination of patient response. In this application note the fast extraction and quantitation of 10 different antidepressant drugs in urine using ISOLUTE® SLE+ 1 mL columns from Biotage is described. ISOLUTE SLE+ Supported Liquid Extraction plates and columns offer an efficient alternative to traditional liquid-liquid extraction (LLE) for bioanalytical sample preparation, providing high analyte recoveries, no emulsion formation, and significantly reduced sample preparation time.

ISOLUTE SLE+ Supported Liquid Extraction Products

Biotage

ISOLUTE® SLE+ plates and columns enable efficient supported liquid extraction of analytes from whole blood, plasma, serum, urine, and oral fluid. The simple load-wait-elute method delivers 99.9% removal of proteins and phospholipids without offline steps, offering superior recovery, reproducibility, and cleaner extracts than liquid-liquid extraction.

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Sample PreparationSample preparation can improve the quality and speed of separation techniques. Products to assist sample preparation include filtration equipment, evaporators, membranes and sieves.LC-MSLC-MS (liquid chromatography-mass spectrometry) systems and equipment are used for separation and quantitative analysis of complex mixtures, combining liquid chromatography and mass spectrometry. Quantify proteins, contaminants, pesticides or screen for drug metabolites with a high level of sensitivity. LC-MS systems and equipment include reverse phase, normal phase and specialized columns integrated with various MS detectors such as time-of-flight (TOF), quadrupole, orbitrap or ion trap mass analyzers. LC-MS/MS instruments equipped with a qTOF or triple quadrupole analyzer give greater sensitivity and resolving power to your analysis. Find the best LC-MS equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.ADME-ToxicologyADME-toxicology (ADME-Tox) studies are used in pharmacology and pharmacokinetics to assess the activity/toxicity of drugs <i>in vivo</i> or <i>in vitro</i>. Find bioassays for absorption, distribution, metabolism, and excretion of drug molecules including cytotoxicity, transporter/permeability, metabolism and activity assays as well as hepatocytes and cell lines for ADME. Find the best ADME-toxicology products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Solid-Phase ExtractionSolid-phase extraction (SPE) is used for clean-up, extraction and concentration of semi-volatile or non-volatile analytes from complex mixtures including blood, urine and food samples. Multiple formats are available for conducting SPE, including prepacked SPE cartridges, disks and microplates, as well as SPE sorbent powders for manual packing. SPE systems can be used to automate the process and extract multiple samples at once. Solid-phase microextraction (SPME) and supported liquid extraction (SLE) products are also available in the same formats. Find the best SPE, SLE and SPME equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.DepressionDrug TestingIt is essential to test the efficacy and toxicity of drugs at every stage of their development to ensure that a pharmaceutical product is fit for purpose and safe for use before reaching the stage of mass production and distribution.DoxepinPain ManagementUrineThe analysis of urine is important in medicinal, anti-doping, forensic and life sciences applications. The ability to evaluate what someone has ingested through their urine enables fast detection and diagnosis of certain illnesses.
Fast Extraction of 10 Tricyclic Antidepressant Drugs from Urine using ISOLUTE® SLE+ Columns Prior to LC-MS-MS Analysis