a general information chapter that is not a mandatory resource.QUALIFICATION OF UV-VIS SPECTROPHOTOMETERSThe suitability of a specific instrument for a given procedure is ensured by a stepwise life cycle evaluation for the desiredapplication from selection to instrument retirement: design qualification (...
USP Chapter <857> requires that wavelength accuracy in the UV and visible regions of the spectrum must be ±1 nm and ±2 nm, respectively. 1.0 0.8 0.6 0.4 0.2 0 300 400 500 Wavelength (nm) 600 Figure 3. Six overlaid wavelength scans of holmium perchlorate using an Agilent Cary 60...
内容提示: á857ñ ULTRAVIOLET-VISIBLE SPECTROSCOPYINTRODUCTIONUltraviolet-visible (UV-Vis) spectra are derived when the interaction between incident radiation and the electron cloud in achromophore results in an electronic transition involving the promotion of one or more of the outer shell or the ...
杂散光标准物质的使用方法均类似。将10 mm光程比色池插入光谱仪的样品仓,5 mm光程比色池插入空白对照仓。在标准物质的工作波段进行扫描,记录吸收峰对应的吸光度。测试值应大于0.7 A 才满足USP Chapter <857>要求。对仪器定期测试,可以掌握仪器的变化情况。有利于及早发现和修正因杂散光导致的问题。
中英对照 USP美国药典-NF 1503 合成多肽类药物质量属性.docx,Printed on: Tue Aug 30 2022, 10:01:32 am Printed by: Albert Zhao Status: Currently Official on 30-Aug-2022 Official Date: Official as of 01-Aug-2021 Document Type: GENERAL CHAPTER DocId: GUID-36322
悬浮样品对光的任何吸收都会导致光强度的额外衰减(参见<857> Ultraviolet-Visible Spectroscopy和<1857> Ultraviolet-Visible Spectroscopy—Theory and Practice)。因此,确保被测材料不会吸收测量波长处的光非常重要。实际上,控制吸收和浊度测定的方程式是相同的(尽管衰减常数的值不同)。在散射光浊度法中,测量与入射光...
1 and to the later sections of this chapter for additional descriptions of dosage forms that fall into the general category of parenteral drug products. Nomenclature á1121?1 provides information on nomenclature used to establish USP names and monograph titles for parenteral drug products. Chapter ...
coherentfashion.The chapter is divided into four main sections: (1) universal product quality tests that are applicable to pa- rental dosage forms; (2) specific product quality tests, which are tests that should be considered in addition to Universal Tests; ...
TESTS Spectrophotometric tests contribute meaningfully toward the identification of many compendial chemical substances. The test procedures that follow are applicable to substances that absorb IR and/or UV radiation (see Mid-Infrared Spectroscopy 〈854〉 and Ultraviolet-Visible Spectroscopy 〈857〉)....
1–1994 1995–3998 3999–5864 5865–6956 6957–7484 Volume 1 Volume 2 Volume 3 Volume 4 First Supplement Numbers in angle brackets such as 〈421〉 refer to chapter numbers in the General Chapters section. A Abacavir oral solution, 1995 sulfate, 1996 tablets, 1997 Absolute alcohol, 1815 ...