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Thin Layer Chromatography (TLC) ✓ Thin Layer Chromatography (TLC) is an analytical technique used to separate and identify compounds in a mixture. ✔ It involves a stationary phase, typically a thin layer of silica gel or alumina, coated on a glass, plastic, or metal plate, and a mobile phase, which is a solvent or solvent mixture that moves through the stationary phase by capillary action. ✓ The mixture to be analyzed is spotted near the bottom of the plate, and as the mobile phase ascends, different components of the mixture travel at different rates due to variations in their affinities to the stationary phase and their solubilities in the mobile phase. ✓ This results in the separation of the components, which can be visualized using UV light, iodine vapor, or other chemical reagents. ✓ TLC is widely used for monitoring the progress of reactions, identifying compounds, and checking the purity of samples due to its simplicity, cost-effectiveness, and rapid results. #TLC #thinlayer #chromatography #chromatogram #silicagel #seperation #absorption #analytical #techniques #methods #instrumentation #mobilephase #stationaryphase #foodindustry #foodprocessing #beverageindustry #biotech #foodsafety #foodquality #qualitycontrol #foodscience #foodtechnology

This document contains a set of information about titrations in analytical chemistry The document is divided into several topics as follows: 📌Difination of titration 📌Basic principles in titration 📌Reaction in titration 📌Units of concentration 📌Standard solutions 📌Aliquots and dilution 📌Gravimetric titration 📌Titration curve #Titration #analytical_chemistry #volumetric_titration

A new technical note has been released. “High-sensitivity detection of polyethylene by pyrolysis GC/MS using F-Splitless Injection method Part 1: Pyrograms obtained by split and F-Splitless Injection methods ” Pyrolysis (Py)-GC/MS is one of the most effective methods for microplastics analysis and allows qualitative and quantitative analysis of polymer mixtures.  For the analysis of trace amounts of polymers, Py-GC/MS using the F-Splitless Injection method with a Multi-Functional Splitless Sampler is very effective for highly sensitive detection.  In this report, trace amounts of polyethylene were measured by Py-GC/MS using the F-Splitless Injection method, and the pyrograms were compared with those obtained by the split injection method. Click here and check it out. https://lnkd.in/gdMyaEUK #frontierlaboratories #pyrolyzer #pyrolysis #analyticalchemistry #gcms #GasChromatography #general_polymer_analysis #environmental_analysis #trace_analysis #F_Splitless_injection #F_Splitless #splitless #splitless_analysis #high_sensitivity_detection #microplastics

We have a small number of seats available for the 41st Annual Chicago LC School. See the link at the end of this post. Reversed-Phase Critical Operating Variable 2: Choice of Mobile Phase Solvent Continuing with our discussion of highlights from the Famous Chicago LC School, we would like to discuss which strong solvent you use for your RP methods (if you're using water as your weak solvent). Your main choices are: Acetonitrile, Methanol, and THF. We will talk about these options in more detail in class, but here are some quick thoughts about this variable. * Many years ago, there was an acetonitrile supply crisis. Some people said, "let's just substitute methanol." In some cases, this worked well, but in other methods the results were a disaster. Be VERY careful when you change solvents. * Don't forget about solubility. There are compounds soluble in methanol that are not soluble in acetonitrile. This is important for the separation as well as the injection solvent. * Speaking of injection solvents, if you switch mobile phase solvents, you must also switch sample solvents. * We have often been taught that the order of solvent strength is THF > Acetonitrile > Methanol. Did you know that THF is not a universally stronger solvent? We will show you examples. Join us in Chicago to learn more. https://lnkd.in/g8TznS3k #ChicagoLCSchool

A new technical note has been released. “High-sensitivity detection of polyethylene by pyrolysis GC/MS using F-Splitless Injection method Part 2: S/N values for different injection methods”     Pyrolysis (Py)-GC/MS is one of the most effective methods for microplastics analysis and allows qualitative and quantitative analysis of polymer mixtures. For the analysis of trace amounts of polymers, Py-GC/MS using the F-Splitless Injection method with a Multi-Functional Splitless Sampler is very effective for highly sensitive detection. In this note, the S/N of the pyrogram for trace amounts of PE (polyethylene) was calculated using the peak height of the C21' (monoene) peak, a characteristic pyrolyzate of PE, to demonstrate the possibility of high-sensitivity detection by F-Splitless injection method.     Click here and check it out. https://lnkd.in/gfVjSpfE #frontierlaboratories #pyrolyzer #pyrolysis #analyticalchemistry #gcms #GasChromatography #general_polymer_analysis #environmental_analysis #trace_analysis #F_Splitless_injection #F_Splitless #splitless #splitless_analysis #high_sensitivity_detection #microplastics

Join us for our webinar tomorrow on optimizing LC and LCMS separations for improved peak shapes and sample load capacity! Discover how positively charged surface (PCS) stationary phases can enhance your analysis of small molecules and peptides. Learn about the speed and efficiency advantages of using these phases with superficially porous particle columns. Don't miss out! Click the link below for more info and to register. #Webinar #Chromatography #LCGC #AdvancedMaterialsTechnology #halocolumns

Struggling with basic analytes? Join our upcoming webinar, "Basic Analyte Blues? Elevate Your Separations of Basic Compounds at High pH Using New Column Chemistry" with LCGC. Discover innovative solutions to enhance your separations. Register now through the link below! https://bit.ly/3wJGVvr #Webinar #Chromatography #LCGC #halocolumns #AdvancedMaterialsTechnology

Did you know? Solvent purification allows you to gain insight into the methods, equipment, and advancements used to achieve high-purity solvents, enhancing experimental reproducibility, accuracy, and safety. This pivotal process involves removing unwanted particles or impurities from solvents or reagents through methods such as distillation, recrystallization, or filtration. Solvent filtration, in particular, is a commonly employed technique in the pre-treatment of precise analyses, such as HPLC. Learn more about Solvent Purification below: https://lnkd.in/emkabBqB #Article #Purification #Information #SolventPurification #Rocker #ChemicalResistantVaccumPump #Chemker #LaboratorySuppliers #Filtration

Enhance Your Chemistry Research with IPS Syringe Pumps! In the world of chemistry research, precision is key. IPS Syringe Pumps deliver accurate, consistent fluid control for complex reactions, synthesis, and titrations. With advanced technology and user-friendly controls, they ensure reliable results in even the most sensitive experiments. Whether you're working with micro-liters or milliliters, trust IPS Syringe Pumps for precise and repeatable performance. #ChemistryResearch #SyringePumps #FluidControl #LabEquipment #Precision

Combining crystalline and polymeric excipients in API solid dispersions.....