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Establishment of a Detection Method for Residual Solvents in Cytidine Disodium Triphosphate
Received date: 2025-01-06
Revised date: 2025-02-10
Accepted date: 2025-03-14
Online published: 2025-08-06
Objective: To establish a detection method for residual solvents in cytidine disodium triphosphate.Methods: Agilent J&W DB-624UI (60 m×0.25 mm×0.25 μm) was used as the chromatographic column. The injection port temperature was 250 ℃. The column temperature was programmed to rise (initial temperature 40 ℃, maintained for 10 min, rising to 80 ℃ at a rate of 5 ℃•min-1, then rising to 220 ℃ at a rate of 12 ℃•min-1 and maintained for 3 min). Carrier gas: helium, flow rate 1 mL•min-1, split injection, split ratio: 10∶1. Headspace incubator equilibrium temperature: 85 ℃. Equilibrium time: 30 min; electron impact (EI) ion source; transmission line temperature: 250 ℃, ion source temperature: 230 ℃. Quadrupole temperature: 150 ℃, electron energy: 70 eV. The established method was verified for specificity, linearity, accuracy, precision, and repeatability, and the detection limit and quantification limit of the method were established.Results: Using the established method to determine the residual solvent contents in more than 30 batches of samples. Residual ethanol was detected in 5 batches of samples.Conclusion: The developed GC-MS method is simple, precise, stable, accurate and specific and can be used for quality control of cytidine disodium triphosphate.
Zhao-Hui GAO
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Establishment of a Detection Method for Residual
Solvents in Cytidine Disodium Triphosphate
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