Parameter Set Antimycotic Drugs - LC-MS/MS

Order No.: 92922
Parameters:
5-Flucytosine, Fluconazole, Hydroxyitraconazole, Itraconazole, Ketoconazole, Posaconazole, Voriconazole

Encompasses 7 analytes
3PLUS1®Multilevel Calibrator Set available
Part of the MassTox® TDM Series A

5-Flucytosine

Fluconazole

Itraconazole

Hydroxyitraconazole

Ketoconazole

Posaconazole

Voriconazole

Clinical relevance

Due to the increasing number of immunocompromised patients, invasive fungal infections have been growing steadily in recent years. The immune deficiencies are usually the result of an infectious disease such as AIDS, or are caused by the use of drugs such as immunosuppressants and chemotherapeutics. Most fungal infections are caused by Candida and Aspergillus species, which enter the body either from the air or via injuries to skin. Through improved diagnostic methods rare mycoses such as fusarium, scedosporium and zygomycosis have also become recognised and are accessible for therapy. These infections can be treated with modern antimycotic agents such as posaconazole and voriconazole. But also older agents such as fluconazole or 5-flucytosine, which are both listed in the "WHO Model List of Essential Medicines", are still used in the treatment of fungal infections.

 

Product advantages

With the Parameter Set Antimycotic Drugs in serum/plasma, 7 different drugs can be measured quickly and efficiently using LC-MS/MS. Due to the careful optimisation of all kit components as well as the chromatographic separation, matrix effects (“ion suppression”) are minimised and the robustness of the method is enhanced. Sample preparation is based on a protein precipitation step. The use of stable isotopically labelled (deuterated) and co-eluting internal standards as well as 3PLUS1® multilevel calibrators ensures high precision and the reproducible and reliable quantification of the analytes. The method is comprehensively validated.

The Parameter Set is a part of the Series A modular system, which enables the analysis of all parameters without switching column or changing the mobile phases, thereby minimising required workload in the laboratory. The Basic Kit A contains all components required for sample preparation and all necessary mobile phases. The MasterColumn® A is the analytical column used for the determination of all Series A analytes. Our portfolio contains further MassTox® Parameter Sets.

For the analysis you require the MassTox® TDM Basic Kit A, the specific MassTox® TDM Parameter Set and the analytical column MassTox® TDM MasterColumn® A.

More Information
Limit of quantification 0.01 – 2.00 mg/l
Linearity

up to 250 mg/l

Recovery 95 – 111 %
Intraassay CV = 1.7 – 4.9 %
Interassay CV = 3.6 – 5.3 %
Analysis Time 3.2 min
Sample Preparation
  • Add 800 µl Internal Standard Mix to 12 ml Precipitation Reagent (= mixture A).
  • Pipette 50 µl sample/calibrator/MassCheck® control into a 1.5 ml reaction vial.
  • Add 25 µl Extraction Buffer, mix briefly (vortex) and incubate 2 min.
  • Add 250 µl of mixture A, mix 30 s (vortex) and centrifuge 5 min.
  • Dilute supernatant with Dilution Buffer (depending on instrument sensitivity) and inject into LC-MS/MS system.
Sample Stability Samples are stable up to 1 week at +2 to +8 °C. For longer storage periods keep samples frozen below -18 °C.
Specimen Serum/Plasma
Injection Volume 0.2 – 50 µl
Gradient

0.00–0.50 min    30 % Mobile Phase 2
0.51–2.80 min  100 % Mobile Phase 2
2.81–3.20 min    30 % Mobile Phase 2

Ionisation ESI positive
MS/MS-Mode MRM
Additional Info We recommend to set the scan time to a value that allows to achieve a minimum of 10 data points over the whole peak width.
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.
Method of Analysis LC-MS/MS
Parameter 5-Flucytosine, Fluconazole, Hydroxyitraconazole, Itraconazole, Ketoconazole, Posaconazole, Voriconazole
  1. 92644 internal standard mix antimycotic drugs
    Internal Standard Mix Antimycotic Drugs
    Order no.: 92644
    Component of the Parameter Set Antimycotic Drugs, available separately
    Details
  2. 0252 0253 0254 LCMS TDM Series A controls antimycotic drugs
    Details
  1. 0252 0253 0254 LCMS TDM Series A controls antimycotic drugs
    Details
  1. 92110 TDM Series A Master Column
    MassTox® TDM MasterColumn® A
    Order no.: 92110

    Analytical column for MassTox® TDM Series A

    Details
  2. 92039 LCMS TDM Series A tuning mix
    Tuning Mix Antimycotic Drugs
    Order no.: 92039
    Tuning Mix for the Parameter Set Antimycotic Drugs - LC-MS/MS
    Details
  3. PEEK Prefilter Housing
    PEEK Prefilter Housing
    Order no.: 15010
    Details
  4. PEEK-encased Prefilter, 2 µm
    Details
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