In general, the light emitted by a fluorescent solution is of maximum intensity at a wavelength longer than that of the exciting radiation, usually by some 20 to 30 nm. The new general chapter provides guidance on the basic steps of this process. The chapter Validation of Compendial Procedures 1225 provides general information on characteristics that should be considered for various test categories and on the documentation that should accompany analytical procedures submitted for inclusion in USP–NF. USP has introduced a new general chapter <1224> on TAP and the new USP chapter will become official with USP-35. The level of validation necessary to ensure that a procedure is appropriate for its USP 30-NF 25, General Chapter <1225> Validation of Compendial Methods • “Validation of an analytical method is the process by which it is established, by laboratory studies, that the performance characteristics of the method meet the requirements for the intended analytical applications.” It is generally accepted that terminally sterilized injectable articles or critical devices purporting to be sterile, when processed in the autoclave, attain a 10 –6 microbial survivor probability, i.e., assurance of less than 1 chance in 1 million that viable microorganisms are present in the sterilized article or dosage form. (USP General Chapter <621> Chromatography) that can be considered. Transfer of Analytical Procedures 1224 , Validation of Compendial Procedures 1225 , and Verification of Compendial Procedures 1226 . The chapter Validation of Compendial Procedures 1225 provides general information on characteristics that should be considered for various test categories and on the documentation that should accompany analytical procedures submitted for inclusion in USP–NF. Fluorescence spectrophotometry is the measurement of the emission of light from a chemical substance while it is being exposed to UV, visible, or other electromagnetic radiation. General chapter á1225ñ provides definitions and general guidance on the procedures for analytical validation without indi-cating specific validation criteria for each characteristic. 2 á730ñ Plasma Spectrochemistry / Physical Tests USP 40. USP29–NF24 Page 2593. used (See General Notices 6.30). Verification consists of assessing selected analytical performance In addition to offering a preview of the proposed general chapter, the General Chapters—Chemical Analysis Expert Committee The intention of the following sections is to provide the user with spe- Expert Committee: (GC05) General Chapters 05. The types of chromatography useful in qualitative and quantitative analysis that are employed in the USP procedures are column, gas, paper, thin-layer, (including high-performance thin-layer chromatography), and pressurized liquid chromatography (commonly called high-pressure or high-performance liquid chromatography). It summarizes the types of transfers that may occur, including the possibility of waiver and outlines the components of a transfer process. USP General Notices - USP chapter <795> Pharmaceutical Compounding – Nonsterile Preparations - USP chapter <797> Pharmaceutical Compounding – Sterile Preparations - USP chapter <800> (effective July 1, 2018) Hazardous Drugs – Handling in Healthcare Settings procedures. The principles of validation are provided in General Chapter Validation of Compendial Procedures <1225>. USP 35 General Information / 〈1225〉 Validation of Compendial Procedures877 ELEMENTS RECOMMENDED FOR THE It is recommended that expired, aged, or spiked samples TRANSFER OF ANAYTICAL PROCEDURES be carefully chosen and evaluated to identify potential problems related to differences in sample preparation equip-Several elements, many of which may be interrelated, arement … Alternative procedures must be validated and equivalent to the compendial procedures for the purposes of the test.

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