59003 HPLC plasma calibration standard extended benzodiazepines

Benzodiazepines/HR Plasma Calibration Standard

Order no.: 59003
  • Bromazepam
  • Chlordiazepoxide
  • Clobazam
  • Clonazepam
  • Desalkylflurazepam
  • Diazepam
  • Flunitrazepam
  • Lorazepam
  • Medazepam
  • Midazolam
  • Nitrazepam
  • Nordiazepam
  • Oxazepam
  • Temazepam
  • Tetrazepam
Extended Benzodiazepines in Serum/Plasma - HPLC


Benzodiazepines/HR Plasma Calibration Standard, lyophilised

This lyophilised calibrator from Chromsystems is based on human plasma and should be used according to the instruction manual. It is designed to calibrate the measurement method in clinical diagnostics for the quantitative determination of benzodiazepines in serum/plasma. While following the instructions the calibrator should be handled and measured in the same manner as a patient specimen.

Technical Data

Method of Analysis



5 x 2.5 ml (lyoph.)


Bromazepam, Chlordiazepoxide, Clobazam, Clonazepam, Desalkylflurazepam, Diazepam, Flunitrazepam, Lorazepam, Medazepam, Midazolam, Nitrazepam, Nordiazepam, Oxazepam, Temazepam, Tetrazepam


Please note: Concentration values shown here are typical. For lot specific concentration values please refer to the product insert supplied with the materials. The product inserts can also be requested from us directly or downloaded from our website after login.

Chlordiazepoxide µg/l 829
Bromazepam µg/l 131
Midazolam µg/l 147
Medazepam µg/l 289
Tetrazepam µg/l 327
Nitrazepam µg/l 92.3
Nordiazepam µg/l 473
Oxazepam µg/l 657
Lorazepam µg/l 174
Clonazepam µg/l 44.6
Desalkylflurazepam µg/l 65.7
Flunitrazepam µg/l 39.0
Temazepam µg/l 298
Diazepam µg/l 683
Clobazam µg/l 345


Carefully remove the metal seal and rubber stopper from the vials. Add exactly 2.5 ml of distilled water into each vial. Return the stopper and incubate for 10 to 15 minutes at room temperature. Swirl the vials to dissolve the contents until homogeneity.

Storage conditions

Stored below –18 °C and unopened, the lyophilised calibrator is stable until the expiry date specified on the vial labels. The reconstituted calibrator can be stored up to 5 days light protected and tightly capped at +2 to +8 C. If the calibrator cannot be used within this period, it should be aliquoted and stored frozen below -18 °C (up to 3 months). For more details about storage conditions please check your instruction manual.