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藥知海洋鐵蟲(chóng) (初入文壇)
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[求助]
溶出度自動(dòng)分析儀器問(wèn)題
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各位大神， 如下描述的的自動(dòng)分析儀器檢檢溶出的設(shè)備，有了解的嘛？ 是溶出紫外一體機(jī)嘛？ 求指教！ Apparatus: Automatic analyzer consisting of (1) a liquid sampler, (2) a proportioning pump, (3) suitable spectrophotometers equipped with matched flow cells and analysis capability at 480 nm, (4) a means of recording spectrophotometric readings, and/or computer for data retrieval and calculation, and (5) a manifold consisting of the components illustrated in Figure 1. Analysis: With the sample line pumping water, the other lines pumping their respective reagents, and the spectrophotometer set at 480 nm, standardize the system until a steady absorbance baseline has been established. Transfer portions of the Standard solution and the Sample solution to sampler cups, and place in the sampler. Start the sampler, and conduct determinations of the Standard solution and the Sample solution typically at the rate of 40/ h using a ratio of about 2:1 for sample and wash time. Calculate the percentage of the labeled amount of ampicillin (C16H19N3O4S) dissolved: Result = (AU/AS) × CS × V × P × F × (1/L) × 100 AU = absorbance of the Sample solution AS = absorbance of the Standard solution CS = concentration of USP Ampicillin RS in the Standard solution (mg/mL) V = volume of Medium, 900 mL P = potency of ampicillin in USP Ampicillin RS (μg/mg) F = conversion factor, 0.001 mg/μg L = label claim (mg/Capsule) |
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