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Description
Occupational Medicine Urine Calibration Standard for the HPLC analysis of hippuric acid, methylhippuric acids, mandelic acid and phenylglyoxylic acid in urine, lyophilised
This lyophilised calibrator from Chromsystems is based on human urine 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 hippuric acid, methylhippuric acids, mandelic acid and phenylglyoxylic acid in urine. While following the instructions the calibrator should be handled and measured in the same manner as a patient specimen.
Technical Data
Method of Analysis
HPLC
Content
5 x 0.5 ml (lyoph.)
Parameter
Hippuric acid, m-Methylhippuric acid, Mandelic acid, o-Methylhippuric acid, p-Methylhippuric acid, Phenylglyoxylic acid
Concentrations
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.
| Substance | Unit | Value |
|---|---|---|
| Mandelic acid | mg/l µmol/l |
468 3073 |
| Hippuric acid | mg/l µmol/l |
1533 8552 |
| Phenylglyoxylic acid | mg/l µmol/l |
257 1712 |
| o-Methylhippuric acid | mg/l µmol/l |
749 3881 |
| p-Methylhippuric acid | mg/l µmol/l |
756 3916 |
| m-Methylhippuric acid | mg/l µmol/l |
738 3825 |
Reconstitution
Carefully remove the metal seal and rubber stopper from the vials. Add exactly 0.5 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 4 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.
