Antiepileptic Drugs in Serum/Plasma, HIGH RESOLUTION - HPLC

Order No.: 22000/HR, for 100 tests
Parameters:
10-OH-Carbamazepine, Carbamazepine, Carbamazepine-10,11-epoxide, Ethosuximide, Lamotrigine, Oxcarbamazepine (Trileptal®), Phenobarbital, Phenytoin, Primidone, Sultiame, Zonisamide

Analysis of all relevant antiepileptic drugs in a single run
Fast sample preparation: only one precipitation step
Alternatively fast elution (< 5 min) or high resolution chromatographic separation
Metabolite analysis included

CE-IVD validated product ready for IVDR within timeframes and transition periods specified by the IVDR-2022 regulation

Carbamazepine

10-OH-carbamazepine

Carbamazepine-10,11-epoxide

Oxcarbamazepine (Trileptal®)

Ethosuximide

Lamotrigine

Phenobarbital

Phenytoin

Primidone

Sultiame

Zonisamide

Clinical relevance

Epileptic seizures are the result of synchronous discharges of neuron groups in the brain that can lead to sudden and involuntary stereotypical behavioural or sensory disorders. There are numerous types of seizures, each of which requires specialised therapy.

Therapy with anticonvulsive medication (antiepileptics) leads to a reduction in seizures and sometimes even a complete elimination of seizures in most treated patients. The condition is usually patient compliance, e.g. regular use of the medication. Therefore, monitoring of blood levels is essential, especially when starting the use of the medication, as well as for further modification for different life phases. For example, children usually metabolise medication faster than teenagers or adults.

 

Product advantages

  • Analysis of all major antiepileptics in one run
  • Fast sample preparation with only one precipitation step
  • Options for fast elution (< 5 minutes) or high resolution chromatography
  • Measurement of metabolites is possible

This Chromsystems AED assay enables the determination of the antiepileptics carbamazepine, ethosuximide, lamotrigin, phenobarbital, phenytoin, primidone, sulthiame, oxcarbazepine (Trileptal®) and zonisamide as well as of the metabolites 10-OH-carbamazepine and carbamazepine-10,11-epoxide in serum/plasma using HPLC. Sample preparation is based on a simple and very efficient precipitation of plasma proteins. Fast chromatography (Fast Elution < 5 minutes) and high resolution chromatography (High Resolution) are available as options for quantifying the analytes.

These analytes as well as other AEDs can also be measured with LC-MS/MS using our Parameter Set for Antiepileptic Drugs from the MassTox® TDM Series A.

More Information
Method of Analysis HPLC
Number of Tests 100
Linearity

up to 250 mg/l

Recovery 84–112 %
Intraassay

CV < 4 %

Interassay

CV < 6 %

Analysis Time Fast Elution: < 5 min; High Resolution: < 22 min
Specimen Serum/Plasma
Sample Preparation
  • Pipette 100 µl serum/plasma/calibrator/control and 150 µl Internal Standard into a reaction vial.
  • Mix 2 s (vortex).
  • Add 50 µl Precipitation Reagent.
  • Mix 1 min (vortex).
  • Centrifuge 10-15 min at 9000 x g.
  • Mix 100 µl supernatant with 100 µl Stabilisation Buffer.
  • Inject 20 µl into the HPLC system.
Sample Stability Stored at +2 to +8 °C for up to 1 week. For longer storage (up to 2 weeks) deep-freeze below -18 °C.
Injection Volume 20 µl
Flow rate Fast Elution: 2.0 ml/min; High Resolution: 1.2 ml/min
Column temperature ambient (~25 °C)
Wavelength 204 nm
Additional Info Isocratic HPLC system with UV detector

Information

A precolumn has to be used.

Please note The freely available information on this website, in particular on the sample preparation, are not sufficient to work with our products. Please read instructions and warning notices on products and/or instruction manuals.
Parameter 10-OH-Carbamazepine, Carbamazepine, Carbamazepine-10,11-epoxide, Ethosuximide, Lamotrigine, Oxcarbamazepine (Trileptal®), Phenobarbital, Phenytoin, Primidone, Sultiame, Zonisamide
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