This standard specifies the determination methods of two dyestuffs, disperse yellow 23 and disperse orange 149, in dyestuff products. Applicable to dyestuff products of various dosage forms, methanol is used as the solvent to extract the target dyestuff in the sample, and high-performance liquid chromatograph-diode array Detector (HPLC-DAD) is used for separation and characterization, and quantification by Peak area external standard method. For detected and inconclusive samples, liquid chromatograph-tandem Mass spectrometry (HPLC-MS/MS) is further used for confirmation. The standard ensures the accuracy and Reliability of the determination. The cited documents include laboratory water specifications and numerical revision rules.
| Status | Active |
|---|---|
| CCS | G55 | ICS | 71.100.01;87.060.10 |
| Release Date | 2019-12-31 00:00:00 | Implementation Date | 2020-11-01 00:00:00 |