Analysis of drug panels in urine samples can be challenging, and the trend towards larger panels including multiple drug classes compounds the issues faced during method development. This white paper examines a number of aspects of sample preparation, and their impact on the success of subsequent LC-MS/MS analysis of broad urine panels. Section 1 examines the applicability of various sample preparation techniques: supported liquid extraction, reverse phase SPE and mixed-mode SPE, to the various classes of drugs extracted. In addition, hydrolysis approaches: enzyme type and protocol used (time, temperature), are compared. Mixed-mode reverse phase/cation exchange SPE is widely used for extraction of basic drug classes from urine, but the inclusion of drugs and metabolites that exhibit ‘non-typical’ functionality within urine panels can be problematic. Section 2 examines the impact of various parameters (interference wash strength, elution solvent composition) on analyte retention, elution and extract cleanliness with particular focus on zwitterionic (gabapentin, pregabalin) and non-ionic (carisoprodol, meprobamate) drugs.

11-nor- Δ9-carboxy tetrahydrocannabinol (THC-COOH) 6-acetylmorphine (MAM) 7-Aminoclonazepam 96-well plate Alprazolam Amitriptyline Amphetamine Amphetamines Anaesthetic Anticonvulsant Application Notes Barbiturates Benzodiazepines Benzoylecgonine Buprenorphine Butalbital Cannabinoid Carbamate hypnotic Carbamate muscle relaxant Carbamates Carisoprodol Chlordiazepoxide Clinical Clonazepam Cocaine Cocaines Codeine Diazepam Dihydrocodeine (DHC) EDDP English Fentanyl Forensic Gabapentin Hallucinogen Hydrocodone Hydrolysed urine Hydromorphone Ketamine LC-MS/MS Lorazepam MDMA Meperidine Meprobamate Methadone Methamphetamine Morphine N-des-tapentadol Naloxone Norbuprenorphine Nordiazepam Norfentanyl Norhydrocodone Norketamine Normeperidine Noroxymorphone Norpropoxyphene Nortryptiline O-desmethyltramadol Opiates Opioid Opioid agonist Oxazepam Oxycodone Oxymorphone Pentobarbital Phencyclidine Phencyclidine (PCP) Phenobarbital Pregabalin Product Notes Ritalinic acid Secobarbital Stimulants Sympathomimetic amine THC metabolites THC-COOH Tapentadol Temazepam Tramadol Tricyclic Antidepressant Zolpidem Zolpidem-phenyl-4-COOH z-drugs α-OH alprazolam

This poster evaluates the performance of a novel 96-well filter plate (ISOLUTE PLD+ Protein and Phospholipid Removal Plate) for the simultaneous removal of proteins and phospholipids from serum samples prior to LC-MS/MS analysis. ASMS2014

96-well plate Acidic Amitriptyline Analgesics Atenolol Basic Bretylium Clinical English Fluoxetine Forensic Ketoprofen LC-MS/MS Metoprolol Mianserin NSAIDs Naltrexone Pharma Plasma Posters Procainamide Quinidine Ranitidine Salbutamol Serum Sulindac Tricyclic Antidepressant β-blockers

EVOLUTE® EXPRESS SPE columns and plates combine sorbent wettability with optimized SPE components, allowing better flow consistency and in many cases eliminating the need for SPE column conditioning; thus simplifying and reducing extraction processing. This poster compares the performance of various EVOLUTE EXPRESS column chemistries using 10-500 mg bed weights, in order to investigate whether sorbent conditioning and equilibration steps are truly required. ASMS 2015

Acidic Amitriptyline Atenolol Benzenesulfonic acid Bretylium Clinical Column Diethyldithiophosphate (DEDTP) Dimethylthiophosphate (DMTP) English Extrahera Forensic Hexanesulfonic acid Ketoprofen LC-MS/MS Metoprolol Mianserin Organophosphate Pesticide Over the counter pharmaceuticals Pain Management Pharma Pharmaceuticals Posters Prednisolone Procainamide Quaternary Amines Quinidine Salbutamol Sulindac Tricyclic Antidepressant Urine β-blockers

This application note describes the use of the ISOLUTE® PLD+ Protein and Phospholipid Removal Plate for clean-up of a range of acidic, basic and neutral drugs from plasma. ISOLUTE® PLD+ Protein and Phospholipid Removal Plates are suitable for clean-up of a range of analytes with widely differing functionality and polarity characteristics from plasma, giving high recoveries, good reproducibility and excellent extract cleanliness.

96-well plate Acetaminophen Acidic Amitriptyline Application Notes Atenolol Basic Bretylium Brompheniramine Clinical English Fluoxetine Forensic Ketoprofen LC-MS/MS Metoprolol Mianserin NSAIDs Naltrexone Neutral Pharma Plasma Procainamide Quinidine Ranitidine Salbutamol Sulindac Tricyclic Antidepressant p-toluamide β-blockers

This Application Note describes the development of an automated procedure for high throughput supported-liquid extraction of three tricyclic antidepressant drugs from human plasma, using the ISOLUTE® SLE+ Supported-liquid Extraction Plate. Analyte recovery, along with the speed and efficiency are compared to traditional LLE. Biotage, Extralute, Ostro, supported liquid extraction, liquid liquid extraction,

Application Notes Clinical Imipramine LC-MS/MS Nortryptiline Plasma Tricyclic Antidepressant Trimipramine

This application note describes the fast extraction and quantitation of 10 different antidepressant drugs in urine using ISOLUTE SLE+ 1 mL columns.

Amitriptyline Clinical Clomipramine Column Desipramine Doxepin English Forensic Imipramine Nortryptiline Paroxetine Sertraline Tricyclic Antidepressant Trimipramine Urine

This application note describes an automated extraction procedure from Tricyclic Antidepressants from Whole Blood Using ISOLUTE HCX Columns and the RapidTrace Workstation. TCAD, TCA, Tricyclic antidepressants, ISOLUTE,

Amitriptyline Application Notes Clinical Column Desipramine Imipramine Nortryptiline RapidTrace Tricyclic Antidepressant Whole blood

The typical range of drugs screened using this generic method are Cocaine, D3-Cocaine, Benzoylegonine-TMS, D3-Benzoylegonine-TMS, Amphetamine, D5-Amphetamine, Methamphetamine, Codeine, Morphine, Amitriptyline HCL, Nortriptyline HCL, Imipramine HCL, Desipramine HCL. These drugs represent a panel of the most significantly abused drugs as recommended by The National Institute on Drug Abuse (NIDA). drugs of abuse, drugs testing, amphetamines, BZE, Cocaine, Codeine, Ion exchange,

Amitriptyline Amphetamine Application Notes Benzoylecgonine Biological fluids Butylone Codeine Column Desipramine Forensic Imipramine Methamphetamine Morphine Nortryptiline Plasma RapidTrace Tricyclic Antidepressant Urine

This poster discusses the effect of various sample preparation protocols of the recovery of a range of different Drugs of abuse classes, extracted from oral fluid collected using the Quantisal collection device. MSACL NA 2018, Palm Springs CA

Anaesthetic Anticonvulsant Benzodiazepines Cannabinoid Carbamates Clinical Column English Forensic LC-MS/MS Opioid Oral fluid Posters Saliva Stimulants Tricyclic Antidepressant z-drugs