Part No: P199.V.1Issued year: 2019File size: 1.63mbFile type: pdf
Solid matrix analysis by LC/MS or GC/MS is generally more involved due to the necessity of multiple manual steps to convert the sample into an extractable form. This poster aims to demonstrate workflow advantages for fingernail analysis; multi-sample homogenization, extraction and analysis for a range of drugs of abuse.
Part No: AN886Issued year: 2017File size: 1mbFile type: pdf
This application note describes the extraction of 96 licit and illicit drugs of abuse from urine prior to UPLC-MS/MS analysis using EVOLUTE® HYDRO CX 96-well plates.
EVOLUTE® HYDRO CX plates offer an efficient way to perform hydrolysis in the well of the extraction plate. This method provides high analyte recovery, reduced extraction time due to the elimination of a sample transfer step as well as the elimination of the column conditioning and equilibration steps, and a reduced risk for sample carryover or cross-contamination due to the elimination of the sample transfer step.
Part No: PPS443.V.1Issued year: 2019File size: 2.98mbFile type: pdf
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.
Part No: P174Issued year: 2017File size: 1.44mbFile type: pdf
This poster discusses the potential for a single extraction protocol
for various drugs of abuse classes in whole blood prior to UPLC-MS/MS analysis.
SOFT 2017, Boca Raton
also presented at SFTA, Marseille, France, 2018
Part No: P112Issued year: 2014File size: 1.4mbFile type: pdf
This poster demonstrates the extraction of a range of drugs of abuse from oral fluid, collected with common collection devices, prior to UPLC-MS/MS analysis. The target analyte list includes benzodiazepines, z drugs, amphetamines, cathinones, opiates, cocaine, buprenorphine, PCP, THC-COOH, fentanyl and ketamine.
Part No: P151Issued year: 2016File size: 0.96mbFile type: pdf
This poster compares the performance of manual processing to a novel automated sample preparation system prior to GC/MS or LC-MS/MS analysis in forensic toxicology applications. Emphasis is placed on the potential for 96-well cross contamination and strategies for its elimination.
Part No: P156Issued year: 2017File size: 0.23mbFile type: pdf
Most drugs are excreted in urine as glucuronide conjugates. Hydrolysis using a beta-glucuronidase enzyme to convert the metabolites to their “free” form for analysis increases sensitivity. Red abalone (Kura Biotech), abalone (Campbell Scientific), and recombinant (IMCSzyme) beta-glucuronidase enzymes were evaluated to determine which provided the most complete hydrolysis of glucuronide metabolites without effecting the overall recovery of non-conjugated compounds.
EVOLUTE EXPRESS CX 96-well plates were used to extract hydrolysed urine samples, and the impact of th enzymes was compared.
MSACL 2017, Palm Springs
SOFT 2017, Boca Raton
Part No: AN768Issued year: 2013File size: 1.86mbFile type: pdf
This application note describes a Supported Liquid Extraction (SLE) protocol for the extraction of various drugs of abuse from hydrolyzed urine prior to LC-MS/MS analysis.
drugs of abuse, sle, multiclass
Part No: AN769Issued year: 2013File size: 1.2mbFile type: pdf
This application note describes a Supported Liquid Extraction (SLE) protocol for the extraction of various drugs of abuse from non- hydrolyzed urine prior to LC-MS/MS analysis.
drugs of abuse, sle, multiclass
Part No: AN875Issued year: 2017File size: 3.36mbFile type: pdf
This application note describes the extraction, using ISOLUTE SLE+ supported liquid extraction columns, of 49 drugs of abuse from whole blood, prior to UPLC-MS/MS analysis.
High, reproducible drug recoveries are achieved, with sub ng/mL LOQs for most analytes. The method is easily automated using Biotage® Extrahera.
Part No: P179Issued year: 2018File size: 2.93mbFile type: pdf
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
ASMS 2018, San Diego, CA
Part No: P165Issued year: 2017File size: 0.32mbFile type: pdf
This poster evaluates 3 different sample preparation approaches (ISOLUTE SLE+, EVOLUTE EXPRESS ABN, EVOLUTE EXPRESS CX) for extraction of large multi-drug urine panels.
Each approach is assessed in terms of suitability for extraction of analytes with different different properties (pka, LogP etc).