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Types of GC and HPLC Peaks: Learn With FAQs And Troubleshooting

Types of GC and HPLC Peaks

GC and HPLC peaks are graphical representations of compounds eluting from a chromatography system, where the x-axis denotes retention time, and the peak height or area corresponds to the compound’s concentration, providing both qualitative and quantitative information about the sample. Chromatography (both Gas Chromatography – GC and High-Performance Liquid Chromatography – HPLC) relies on the […]

Enantiomers, Diastereomers, Racemate and Meso-Form: Key Differences With Case Studies and FAQs

Enantiomers, Diastereomers and Meso-form of Tartaric acid

Enantiomers, diastereomers, racemates, and meso-compounds are types of stereoisomers—compounds with the same formula but different 3D arrangements—where enantiomers are non-superimposable mirror images with opposite chirality, diastereomers are non-mirror-image stereoisomers with different properties, racemates are 50:50 mixtures of enantiomers that are optically inactive, and meso-compounds have chiral centres yet are achiral due to internal symmetry. Enantiomers, […]

Swab Sampling and Rinse Sampling in Cleaning Validation: Learn In 3 Minutes

Swab sampling and Rinse sampling are key techniques in cleaning validation, each with distinct advantages. Guidelines recommend combining both methods for thorough residue assessment. Cleaning validation is a critical aspect of pharmaceutical manufacturing that ensures equipment and surfaces are free from residues of active pharmaceutical ingredients (APIs), cleaning agents, and microbial contaminants. Two primary sampling […]

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