Part No: P144Issued year: 2016File size: 0.6mbFile type: pdf
The ability to extract a broad range of different drugs from a biological matrix allows for the expedited analysis of a patient sample using LC-MS/MS. Typically small molecules are extracted from matrices like urine based on their polarities. A fast and reliable sample preparation method that could be implemented to extract drugs of different polarities from urine could be used as a screening tool to quickly identify the presence of illicit drugs in patient samples using LC-MS-MS.
This poster demonstrates the utility of supported liquid extraction for the extraction of over 30 different acidic, basic and neutral drugs in urine prior to LC-MS/MS.
Part No: P164Issued year: 2017File size: 0.69mbFile type: pdf
Most drugs, both licit and illicit, are excreted in urine as glucuronide conjugates. Hydrolysis using beta-glucuronidase converts the glucuronidated metabolites back to their “free” or non-conjugated
form, increasing sensitivity for LC-MS/MS analysis. Hydrolysis using red abalone, abalone, and recombinant beta-glucuronidase enzymes was evaluated using an in-well hydrolysis plate to determine which provided the most efficient hydrolysis of glucuronide metabolites without affecting overall recovery of nonconjugated compounds. A glucuronide control containing 8 glucuronide compounds was used to determine the extent of hydrolysis that occurred. A non-conjugated control containing 96 licit and illicit drugs of abuse was evaluated to determine if signal suppression occurred as a result of enzyme hydrolysis.
Part No: P157Issued year: 2017File size: 0.8mbFile type: pdf
This poster demonstrates that a large urine panel, comprised of 43 DOAs, from multiple drug classes, can be simultaneously screened by mixed-mode cation exchange SPE (using EVOLUTE EXPRESS CX 96 well plates) despite their disparate intermolecular traits, by thoughtfully selecting appropriate organic wash and elution conditions that simultaneously enable sample isolation and detection along with minimizing sample matrix effects.
The extraction method is automated using the Biotage® Extrahera™ Automated sample Preparation Platform.
MSACL 2017, Palm Springs
Part No: P143Issued year: 2016File size: 0.27mbFile type: pdf
Buprenorphine and Norbuprenorphine are typically problematic for analysis due to analyte stability issues during sample preparation.
This poster will demonstrate two fast and robust methods for the extraction of buprenorphine and norbuprenorphine in urine (using EVOLUTE EXPRESS CX), oral fluid (using EVOLUTE EXPRESS CX) and whole blood (using ISOLUTE SLE+).
Part No: P132Issued year: 2015File size: 1.55mbFile type: pdf
This poster demonstrates the extraction of a range of drugs of abuse from oral fluid collection devices using supported liquid extraction suitable for UPLC-MS/MS analysis. Unlike some sample preparation techniques, SLE allows for the simultaneous extraction of cross-functional analytes in a single extraction protocol without forfeiting extract cleanliness.
The target analyte list includes benzodiazepines, z drugs, amphetamines, cathinones, opiates, cocaine, buprenorphine, PCP, THC-COOH, fentanyl and ketamine.
Part No: P127Issued year: 2015File size: 0.17mbFile type: pdf
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.
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
Part No: AN764Issued year: 2012File size: 0.52mbFile type: pdf
The use of schedule I drugs for patient pain management therapy warrants constant monitoring of therapeutic levels in the patient. Screening patient urine samples for the free drugs is complicated by the metabolism process which converts the free drug to the -glucuronide form. Patient urine samples can be enzymatically hydrolyzed and extracted to detect the drugs using Supported Liquid Extraction (ISOLUTE SLE+) which offers an efficient alternative to traditional liquid-liquid extraction (LLE) for bioanalytical sample preparation. LOQs for recovered drugs ranged from 10 ng/mL to 0.5 ng/mL with recoveries above 80% and RSDs <10%
SLE, Supported Liquid Extraction, Pain Mangement, Hydrolysis, Urine, Buprenorphine, Oxycodone, Temazepam,
Part No: AN832Issued year: 2014File size: 1.78mbFile type: pdf
This application note describes the extraction of 47 drugs of abuse from oral fluid matrix after sampling via Quantisal collection devices prior to analysis by UPLC-MS/MS. Optimised protocols for 200 uL and 500 uL sample volumes are included.
Part No: AN837Issued year: 2015File size: 2.27mbFile type: pdf
This application note describes the extraction of 47 drugs
of abuse and metabolites from oral fluid matrix after sampling via Oral-Eze collection devices, prior to UPLC-MS/MS analysis using ISOLUTE SLE+ supported liquid extraction columns. Estimated LOQs of between 0.005 and 0.75 ng/mL (analyte dependant) are achieved,.
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: AN845Issued year: 2015File size: 1.03mbFile type: pdf
This application note describes a simple and robust mixed mode cation exchange solid phase extraction protocol using EVOLUTE® EXPRESS CX 96 well plates for the extraction of buprenorphine and norbuprenorphine from oral fluid. Excellent extract cleanliness allows quantitation of the analytes across the range 0.1 ng/mL to 100 ng/mL using
Part No: AN846Issued year: 2015File size: 1.04mbFile type: pdf
This application note describes a simple and robust mixed mode cation exchange solid phase extraction protocol using EVOLUTE® EXPRESS CX 96 well plates for the extraction of buprenorphine and norbuprenorphine from urine. Excellent extract cleanliness allows low level quantitation (0.1 ng/mL) of the analytes using LC-MS/MS.
Part No: AN806Issued year: 2013File size: 1.03mbFile type: pdf
The screening of patient urine samples for basic drugs is typically performed following a lengthy sample preparation methodology that requires a time consuming dry down step.
A novel elution protocol coupled to the EVOLUTE EXPRESS advanced plate technology affords a fast sample preparation solution that follows a LOAD-WASH-ELUTE-ANALYZE strategy. Basic drugs are fortified into urine and extracted in 3 easy steps using EVOLUTE EXPRESS CX solid phase extraction in a 96-well plate format.
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).