Part No: P070Issued year: 2014File size: 0.55mbFile type: pdf
This poster describes a strong cation exchange SPE protocol for extraction of Vitamin B3 (Niacin) and related metabolites from serum.
The ISOLUTE SCX-3 96 well plate format demonstrated as a viable option for serum measurements over a relevant concentration range in clinical diagnostics.
It is anticipated that strategies presented in this poster would be of broad-based interest to clinical laboratories focused on combining parent/metabolite assays into a single analysis.
Part No: AN814Issued year: 2014File size: 1.19mbFile type: pdf
This application note describes the extraction of Vitamin B3 (Niacin, nicotinic acid) and its key metabolites from serum using a strong cation exchange SPE retention mechanism. High reproducible analyte recoveries are achieved.
Part No: P052Issued year: 2013File size: 0.48mbFile type: pdf
Pain management therapy warrants constant monitoring of therapeutic levels of prescribed drug levels in patient urine samples. The number of samples being submitted for analysis has increased dramatically in the last 10 years with improvements in high throughput automated screening capabilities. Patient samples analysis is complicated by the need for an effective sample preparation methodology that can extract target analytes from complex matrices with good efficiency. Further complicating the process is the need to enzymatically hydrolyse the glucoronidated metabolites prior to extraction from the urine matrix. A fully automated sample preparation process using a TECAN Freedom EVO® 100 was designed to incorporate both the enzymatic hydrolysis and subsequent sample preparation assay as one continuous workflow. Supported Liquid Extraction (ISOLUTE SLE+) which offers an efficient alternative to traditional liquid-liquid extraction (LLE) and solid phase extraction (SPE) techniques was used to extract a suite of pain management drugs from spiked urine samples. A recovery and quantitation assay was run on the TECAN Freedom EVO® 100 using mock patient samples to demonstrate utility of automation process.
MSACL, Pain Management, Biotage, SPE, SLE, LLE, Supported Liquid Extraction, Drugs, MSACL, San Diego, 2013
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: P109Issued year: 2014File size: 0.43mbFile type: pdf
This poster describes a supported liquid extraction method for extraction of a class of novel psychoactive substances (NBOMes) with analysis using laser diode thermal desorption (LDTD) MS/MS. Samples are oral fluid collected using Salivettes.
Part No: P081Issued year: 2014File size: 0.42mbFile type: pdf
This poster describes a reduced workflow solid phase extraction method for extraction of vitamin B7 (biotin) from human serum. Using EVOLUTE EXPRESS AX 96-well plates, the traditional sorbent conditioning and equilibration steps are not required, meaning the sample can be applied directly to the dry plate. Post extraction evaporation is also eliminated.
Part No: P091Issued year: 2014File size: 0.38mbFile type: pdf
This report details a “load, wash, elute” weak cation exchange solid phase extraction procedure amenable to both plasma and urine samples. The extracts are subsequently injected into an LC-MS/MS system. The preliminary sample preparation method was developed at the Biotage US Applications lab (Charlotte, NC).The method was then transferred to Ionics (Bolton, ON, Canada) to facilitate the nmole/L measurements of the selected biomarkers
by laminar flow tandem mass spectrometry. The SPE-LC-ESIMS/ MS method parameters were first optimized using pooled mixed gender plasma. A set of patient samples (n=32) was later supplied by the Mayo Clinic (Rochester, MN) that had previously been analyzed by a validated referee method. The population represented measured values across a range of clinical relevance.
Part No: MSACL US 2018 Breakfast SeminarIssued year: 2018File size: 3.24mbFile type: pdf
The use of LC/MS analysis in the clinical lab has increased exponentially over the last 10 years. Modern mass spectrometers are extremely sensitive allowing low level detection of many target analytes. However, this sensitivity can come at a price, in that levels of contamination not previously detected with less sensitive instruments can now have larger impact on analysis. The complexity of common matrices such as plasma/serum and urine while presenting different challenges can have a marked influence on method performance.
As a result sample preparation is an extremely important part of the process in order to provide robust methods. This seminar focuses on some of the method development challenges our lab faced when looking at two clinical assays:
Endogenous steroid hormone extraction from serum, and catecholamine extraction from plasma and urine.
Particular emphasis is placed on the various sample preparation options we looked at for the extraction of these analytes. During optimization of the extraction process we investigated analyte recovery, co-extractable matrix components, HPLC column degradation, calibration curve performance and limits of quantitation.
MSACL US 2018 Breakfast Seminar
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: 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: AN793Issued year: 2013File size: 2.04mbFile type: pdf
This application note describes the extraction of a range of SPICE drugs and metabolites in urine which are
typically screened in forensic toxicology panels using ISOLUTE® SLE+ in a 96-well plate format. Both manual
(Biotage Pressure+ 96) and automated (TECAN Freedom EVO® 100) processing conditions are described.
Part No: P137Issued year: 2015File size: 0.37mbFile type: pdf
This poster examines various factors in the development and optimisation of a SPE-LC-MS/MS method for extraction of catecholamines from plasma.
The final method utilizes EVOLUTE EXPRESS WCX plates in either standard SPE or fast Load-wash-elute modes, and incorporates a series of wash steps to optimise analytical sensitivity. Low elution volumes mean no evaporation step is required, and LLOQ is 20mg/mL or lower for each of the analytes.
Part No: P137v2Issued year: 2016File size: 0.39mbFile type: pdf
This poster investigates various parts of the SPE method development process to develop a highly sensitive LC-MS/MS method for analysis of catecholamines (epinephrine, norepinephrine, dopamine).
A number of steps are optimized to improve sensitivity of the
analytes. This includes reducing the buffer strength in the mobile
phase, reducing the buffer strength of washes, careful pH control
throughout the extraction, avoiding an evaporation step and
incorporating IPA in the reconstitution solvent.
Part No: P136Issued year: 2015File size: 0.6mbFile type: pdf
This poster compares the use of supported liquid extraction (ISOLUTE® SLE+) and a novel protein and phospholipid depletion plate (ISOLUTE® PLD+), for the extraction of 25-hydroxy vitamin D. The manual extraction protocols were transferred to an SPE automation platform (Biotage® Extrahera)and method performance versus manual processing compared.
MSACL EU 2015
Part No: PPS362Issued year: 2014File size: 1.23mbFile type: pdf
This product sheet compares automated sample preparation using the Biotage®Extrahera™ to an equivalent manual method utilizing a vacuum manifold. A selection of beta blocker drugs were extracted from pooled
stripped plasma using a supported liquid extraction procedure.
Part No: PPS366Issued year: 2014File size: 1.76mbFile type: pdf
Automated sample preparation using the Biotage®Extrahera™ was compared to an equivalent manual method utilizing a vacuum manifold. Analytes were extracted from pooled stripped plasma using a supported liquid extraction procedure.