CD Formulation focuses on delivering expert moisture content analysis services for nucleic acid drugs, ensuring drug quality and stability. We employ cutting-edge technology platforms and possess a team of seasoned experts capable of providing precise and reliable moisture content data analysis. Our services aim to help you optimize product formulations and enhance market competitiveness.
The moisture in nucleic acid drug formulations includes crystallization and adsorbed water, which significantly impact drug synthesis, physicochemical properties, production processes, and storage conditions. Controlling moisture effectively prevents issues like drug moisture absorption, mold growth, hydrolysis, and oxidation. During the synthesis of nucleic acid drugs, moisture control is crucial to ensure reaction outcomes and product quality. Due to the unique chemical structure and crystalline form of nucleic acid drugs, their stability is easily affected by moisture. Hence, it's essential to control ambient humidity during production and preparation processes, minimizing adverse moisture effects. Determining crystallization water is also critical to confirm the structure and characterize crystal forms of nucleic acid drugs. During the research and development phase, reliable moisture testing methods must be developed to ensure effective monitoring of moisture in raw materials and final products. Combining drug characteristics with production processes, packaging, and storage methods, reasonable limits should be set to maintain product quality.
Fig.1 Determination of moisture content in nucleic acid drugs. (CD Formulation)
TGA is a method that measures the mass change of a substance through a controlled temperature program, particularly suitable for drugs with combined water or small sample sizes. The primary advantages of TGA are high automation and short testing time, making it ideal for thermally unstable drugs or those where moisture is difficult to remove.
This chemical quantification technique offers strong specificity, good repeatability, high precision, and a broad application range. It employs the iodine oxidation of sulfur dioxide reaction to determine moisture content, applicable to various drugs. However, the sample's physicochemical properties and environmental requirements must be carefully considered.
Fig.2 Flow chart of moisture content analysis for nucleic acid drugs. (CD Formulation)
Collect nucleic acid drug samples, ensuring they are free from moisture or contamination, and place them in a dry environment for testing.
Weigh samples using a high-precision balance and record the initial weight. The weighing environment's humidity should be minimized to avoid its influence on sample weight.
Heat the samples in a specific heating device (e.g., oven or vacuum dryer) to evaporate moisture. Heating temperature and time depend on the sample's chemical properties.
After cooling the heated samples to room temperature, perform a second weighing to measure post-moisture removal weight.
Calculate the moisture content percentage based on initial and final weights. Record and analyze data, creating a report to assess compliance with quality standards.
Platforms | Descriptions |
---|---|
DSC Platform | Our technology measures the thermal properties of drug samples, allowing indirect moisture content information through the analysis of heat flow changes at various temperatures. |
TGA Platform | By measuring the mass loss of samples under controlled temperature changes, we can directly analyze moisture and volatile component content in nucleic acid drugs. |
Technology: Samples were analyzed for moisture using the TGA technology platform
Journal: International Journal of Pharmaceutics
IF: 5.3
Published: 2021
Results:
This study delves into the intricate impact of moisture on the storage stability of eutectic systems, specifically focusing on carvedilol-L-aspartic acid (CAR-ASP). Experiments conducted under non-dry conditions (25°C 55%RH and 40°C 55%RH) revealed that the CAR-ASP system achieved peak stability at a 1:1 molar ratio. This deviates from previously noted optimal conditions seen under dryness (1:1.5). The findings suggest that moisture affects CAR-ASP interactions and may induce salt disproportionation. Observations post one-week storage highlighted morphological changes linked to varying molar ratios. Moreover, temperature-variable X-ray diffraction indicated quicker recrystallization in non-equimolar systems. Ultimately, this study underscores moisture's pivotal role in influencing eutectic system stability and guides optimal ratio determination for shorter storage durations.
Fig.3 Water contents of CAR-ASP systems. (Liu J, et al., 2021)
For any inquiries or further information on moisture content determination techniques for nucleic acid drugs, please reach out to our team at CD Formulation. Our experienced professionals are ready to assist you in optimizing your drug formulation processes. Contact us today to explore how our innovative solutions can meet your specific needs.
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